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    Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird

    1.Helm, B. et al. Annual rhythms that underlie phenology: Biological time-keeping meets environmental change. Proc. R. Soc. B Biol. Sci. 280, 20130016 (2013).
    Google Scholar 
    2.Bradshaw, W. E. & Holzapfel, C. M. Evolution of animal photoperiodism. Annu. Rev. Ecol. Evol. Syst. 38, 1–25 (2007).
    Google Scholar 
    3.Dawson, A. Control of the annual cycle in birds: Endocrine constraints and plasticity in response to ecological variability. Philos. Trans. R. Soc. B Biol. Sci. 363, 1621–1633 (2008).
    Google Scholar 
    4.Dawson, A., King, V. M., Bentley, G. E. & Ball, G. F. Photoperiodic control of seasonality in birds. J. Biol. Rhythms 16, 365–380 (2001).CAS 
    PubMed 

    Google Scholar 
    5.Wingfield, J. C. & Kenagy, G. J. Natural regulation of reproductive cycles. Vertebr. Endocrinol. Fundam. Biomed. Implic. 4, 181–241 (1991).
    Google Scholar 
    6.Hahn, T. P., Pereyra, M. E., Sharbaugh, S. M. & Bentley, G. E. Physiological responses to photoperiod in three cardueline finch species. Gen. Comp. Endocrinol. 137, 99–108 (2004).CAS 
    PubMed 

    Google Scholar 
    7.Perfito, N., Meddle, S. L., Tramontin, A. D., Sharp, P. J. & Wingfield, J. C. Seasonal gonadal recrudescence in song sparrows: Response to temperature cues. Gen. Comp. Endocrinol. 143, 121–128 (2005).CAS 
    PubMed 

    Google Scholar 
    8.Shutt, J. D. et al. The environmental predictors of spatio-temporal variation in the breeding phenology of a passerine bird. Proc. R. Soc. B Biol. Sci. 286, 20190952 (2019).
    Google Scholar 
    9.Drake, A. & Martin, K. Rainfall and nest site competition delay mountain bluebird and tree swallow breeding but do not impact productivity. Auk 137, 1–18 (2020).
    Google Scholar 
    10.Bison, M. et al. Best environmental predictors of breeding phenology differ with elevation in a common woodland bird species. Ecol. Evolut. https://doi.org/10.1002/ece3.6684 (2020).Article 

    Google Scholar 
    11.McNamara, J. M., Barta, Z., Klaassen, M. & Bauer, S. Cues and the optimal timing of activities under environmental changes. Ecol. Lett. 14, 1183–1190 (2011).PubMed 
    PubMed Central 

    Google Scholar 
    12.Thackeray, S. J. et al. Phenological sensitivity to climate across taxa and trophic levels. Nature 535, 241–245 (2016).ADS 
    CAS 
    PubMed 

    Google Scholar 
    13.Moussus, J.-P., Clavel, J., Jiguet, F. & Julliard, R. Which are the phenologically flexible species? A case study with common passerine birds. Oikos 120, 991–998 (2011).
    Google Scholar 
    14.Chamberlain, D. et al. The altitudinal frontier in avian climate impact research. Ibis 154, 205–209 (2012).
    Google Scholar 
    15.Wipf, S., Stoeckli, V. & Bebi, P. Winter climate change in alpine tundra: Plant responses to changes in snow depth and snowmelt timing. Clim. Change 94, 105–121 (2009).ADS 

    Google Scholar 
    16.Jonas, T., Rixen, C., Sturm, M. & Stoeckli, V. How alpine plant growth is linked to snow cover and climate variability. J. Geophys. Res. Biogeosci. 113, G03013 (2008).ADS 

    Google Scholar 
    17.Kudo, G. & Hirao, A. S. Habitat-specific responses in the flowering phenology and seed set of alpine plants to climate variation: Implications for global-change impacts. Popul. Ecol. 48, 49–58 (2006).
    Google Scholar 
    18.Trant, A., Higgs, E. & Starzomski, B. M. A century of high elevation ecosystem change in the Canadian Rocky Mountains. Sci. Rep. 10, 9698 (2020).ADS 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 
    19.Ceppi, P., Scherrer, S. C., Fischer, A. M. & Appenzeller, C. Revisiting Swiss temperature trends 1959–2008. Int. J. Climatol. 32, 203–213 (2012).
    Google Scholar 
    20.Pepin, N. et al. Elevation-dependent warming in mountain regions of the world. Nat. Clim. Chang. 5, 424–430 (2015).ADS 

    Google Scholar 
    21.Rosenzweig, C. et al. Attributing physical and biological impacts to anthropogenic climate change. Nature 453, 353–357 (2008).ADS 
    CAS 
    PubMed 

    Google Scholar 
    22.Brunetti, M. et al. Precipitation variability and changes in the greater Alpine region over the 1800–2003 period. J. Geophys. Res. Atmos. 111, D11107 (2006).ADS 

    Google Scholar 
    23.Napoli, A., Crespi, A., Ragone, F., Maugeri, M. & Pasquero, C. Variability of orographic enhancement of precipitation in the Alpine region. Sci. Rep. 9, 13352 (2019).ADS 
    PubMed 
    PubMed Central 

    Google Scholar 
    24.Diffenbaugh, N. S., Scherer, M. & Ashfaq, M. Response of snow-dependent hydrologic extremes to continued global warming. Nat. Clim. Chang. 3, 379–384 (2013).ADS 
    PubMed 

    Google Scholar 
    25.Beniston, M., Keller, F. & Goyette, S. Snow pack in the Swiss Alps under changing climatic conditions: An empirical approach for climate impacts studies. Theoret. Appl. Climatol. 74, 19–31 (2003).ADS 

    Google Scholar 
    26.Parmesan, C. Ecological and evolutionary responses to recent climate change. Annu. Rev. Ecol. Evol. Syst. 37, 637–669 (2006).
    Google Scholar 
    27.Saalfeld, S. T. et al. Phenological mismatch in Arctic-breeding shorebirds: Impact of snowmelt and unpredictable weather conditions on food availability and chick growth. Ecol. Evol. 9, 6693–6707 (2019).PubMed 
    PubMed Central 

    Google Scholar 
    28.Tulp, I. & Schekkerman, H. Has prey availability for arctic birds advanced with climate change? Hindcasting the abundance of tundra arthropods using weather and seasonal variation. Arctic 61, 48–60 (2008).
    Google Scholar 
    29.Leung, M.C.-Y. et al. Phenology of hatching and food in low Arctic passerines and shorebirds: Is there a mismatch?. Arctic Sci. 4, 538–556 (2018).
    Google Scholar 
    30.Grabowski, M. M., Doyle, F. I., Reid, D. G., Mossop, D. & Talarico, D. Do Arctic-nesting birds respond to earlier snowmelt? A multi-species study in north Yukon, Canada. Polar Biol. 36, 1097–1105 (2013).
    Google Scholar 
    31.Liebezeit, J. R., Gurney, K. E. B., Budde, M., Zack, S. & Ward, D. Phenological advancement in arctic bird species: Relative importance of snow melt and ecological factors. Polar Biol. 37, 1309–1320 (2014).
    Google Scholar 
    32.Hendricks, P. Spring snow conditions, laying date, and clutch size in an alpine population of American Pipits. J. Field Ornithol. 74, 423–429 (2003).
    Google Scholar 
    33.Pereyra, M. E. Effects of snow-related environmental variation on breeding schedules and productivity of a high-altitude population of dusky flycatchers (Empidonax oberholseri). Auk 128, 746–758 (2011).
    Google Scholar 
    34.Resano-Mayor, J. et al. Snow cover phenology is the main driver of foraging habitat selection for a high-alpine passerine during breeding: implications for species persistence in the face of climate change. Biodivers. Conserv. 28, 2669–2685 (2019).
    Google Scholar 
    35.Venables, W. N. & Ripley, B. D. Modern Applied Statistics with S (Springer, 2002).MATH 

    Google Scholar 
    36.Bears, H., Martin, K. & White, G. C. Breeding in high-elevation habitat results in shift to slower life-history strategy within a single species. J. Anim. Ecol. 78, 365–375 (2009).CAS 
    PubMed 

    Google Scholar 
    37.García-González, R., Aldezabal, A., Laskurain, N. A., Margalida, A. & Novoa, C. Influence of snowmelt timing on the diet quality of pyrenean rock ptarmigan (Lagopus muta pyrenaica): Implications for reproductive success. PLoS ONE 11, e0148632 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    38.Antor, R. J. Arthropod fallout on high alpine snow patches of the Central Pyrenees, northeastern Spain. Arct. Alp. Res. 26, 72–76 (1994).
    Google Scholar 
    39.Brambilla, M. et al. Foraging habitat selection by alpine white-winged snowfinches Montifringilla nivalis during the nestling rearing period. J. Ornithol. 158, 277–286 (2017).
    Google Scholar 
    40.Heiniger, P. H. Anpassungsstrategien des Schneefinken (Montifringilla nivalis) an die extremen Umweltbedingungen des Hochgebirges. Der Ornithol. Beobachter 88, 193–207 (1991).
    Google Scholar 
    41.MacDonald, E. C., Camfield, A. F., Jankowski, J. E. & Martin, K. An alpine-breeding songbird can adjust dawn incubation rhythms to annual thermal regimes. Auk 131, 495–506 (2014).
    Google Scholar 
    42.Mortensen, L. O., Schmidt, N. M., Høye, T. T., Damgaard, C. & Forchhammer, M. C. Analysis of trophic interactions reveals highly plastic response to climate change in a tri-trophic high-arctic ecosystem. Polar Biol. 39, 1467–1478 (2016).
    Google Scholar 
    43.Grangé, J. L. Biologie de la reproduction de la Niverolle alpine Montifringilla nivalis dans les Pyrénnées occidentales françaises. Nos Oiseaux 55, 67–82 (2008).
    Google Scholar 
    44.Strinella, E., Vianale, P., Pirrello, S. & Artese, C. Biologia riproduttiva del Fringuello Alpino Montifringilla nivalis a Campo Imperatore nel Parco Nazionale del Gran Sasso e Monti della Laga (AQ). Alula 18, 95–100 (2011).
    Google Scholar 
    45.Visser, M. E. et al. Variable responses to large-scale climate change in European Parus populations. Proc. R. Soc. Lond. Ser. B Biol. Sci. 270, 367–372 (2003).
    Google Scholar 
    46.Knaus, P. et al. Schweizer Brutvogelatlas 2013–2016. Verbreitung und Bestandsentwicklung der Vögel in der Schweiz und im Fürstentum Liechtenstein. (Schweizerische Vogelwarte, 2018).47.Basist, A., Bell, G. D. & Meentemeyer, V. Statistical relationships between topography and precipitation patterns. J. Clim. 7, 1305–1315 (1994).ADS 

    Google Scholar 
    48.Hock, R. et al. High mountain areas. in IPCC Special Report on the Ocean and Cryosphere in a Changing Climate (eds. Pörtner, H. O. et al.). 131–202. (IPCC-Intergovernmental Panel on Climate Change, 2019).49.Schmidt, N. M., Reneerkens, J., Christensen, J. H., Olesen, M. & Roslin, T. An ecosystem-wide reproductive failure with more snow in the Arctic. PLOS Biol. 17, e3000392 (2019).CAS 
    PubMed 
    PubMed Central 

    Google Scholar 
    50.Martin, K. & Wiebe, K. L. Coping mechanisms of alpine and arctic breeding birds: extreme weather and limitations to reproductive resilience. Integr. Comp. Biol. 44, 177–185 (2004).PubMed 

    Google Scholar 
    51.Williams, C. T. et al. Seasonal reproductive tactics: Annual timing and the capital-to-income breeder continuum. Philos. Trans. R. Soc. B Biol. Sci. 372, 20160250 (2017).
    Google Scholar 
    52.Barlow, K. E. et al. Citizen science reveals trends in bat populations: The National Bat Monitoring Programme in Great Britain. Biol. Cons. 182, 14–26 (2015).
    Google Scholar 
    53.Strebel, N., Kéry, M., Schaub, M. & Schmid, H. Studying phenology by flexible modelling of seasonal detectability peaks. Methods Ecol. Evol. 5, 483–490 (2014).
    Google Scholar 
    54.Maggini, R. et al. Are Swiss birds tracking climate change?: Detecting elevational shifts using response curve shapes. Ecol. Model. 222, 21–32 (2011).
    Google Scholar 
    55.Gilg, O. et al. Climate change and the ecology and evolution of Arctic vertebrates. Ann. N. Y. Acad. Sci. 1249, 166–190 (2012).ADS 
    PubMed 

    Google Scholar 
    56.Gossmann, T. I. et al. Ice-age climate adaptations trap the alpine marmot in a state of low genetic diversity. Curr. Biol. 29, 1712–1720 (2019).CAS 
    PubMed 
    PubMed Central 

    Google Scholar 
    57.Charmantier, A. & Gienapp, P. Climate change and timing of avian breeding and migration: Evolutionary versus plastic changes. Evol. Appl. 7, 15–28 (2014).PubMed 

    Google Scholar 
    58.Klein, G., Vitasse, Y., Rixen, C., Marty, C. & Rebetez, M. Shorter snow cover duration since 1970 in the Swiss Alps due to earlier snowmelt more than to later snow onset. Clim. Change 139, 637–649 (2016).
    Google Scholar 
    59.Scridel, D. et al. A review and meta-analysis of the effects of climate change on Holarctic mountain and upland bird populations. Ibis 160, 489–515 (2018).
    Google Scholar 
    60.Strinella, E., Scridel, D., Brambilla, M., Schano, C. & Korner-Nievergelt, F. Potential sex-dependent effects of weather on apparent survival of a high-elevation specialist. Sci. Rep. 10, 8386 (2020).ADS 
    CAS 
    PubMed 
    PubMed Central 

    Google Scholar 
    61.Gottfried, M. et al. Continent-wide response of mountain vegetation to climate change. Nat. Clim. Chang. 2, 111–115 (2012).ADS 

    Google Scholar 
    62.Kharouba, H. M. & Wolkovich, E. M. Disconnects between ecological theory and data in phenological mismatch research. Nat. Clim. Chang. 10, 406–415 (2020).ADS 

    Google Scholar 
    63.Summers-Smith, J. Handbook of the Birds of the World, Volume 14: Bush-Shrikes to Old World Sparrows. (2009).64.Glutz von Blotzheim, U., Bauer, K. & Bezzel, E. I: Passeridae. in Handbuch der Vögel Mitteleuropas. Vol. 12 (Akademische Verlagsgesellschaft, 1997).65.Antor, R. J. The importance of arthropod fallout on snow patches for the foraging of high-alpine birds. J. Avian Biol. 26, 81–85 (1995).
    Google Scholar 
    66.Gonseth, Y., Wohlgemuth, T., Sansonnens, B. & Buttler, A. Die Biogeographischen Regionen der Schweiz. Erläuterungen und Einteilungsstandard. Umwelt Materialien. Vol. 137 (2001).67.Thornton, P. E., Running, S. W. & White, M. A. Generating surfaces of daily meteorological variables over large regions of complex terrain. J. Hydrol. 190, 214–251 (1997).ADS 

    Google Scholar 
    68.Magnusson, J., Gustafsson, D., Hüsler, F. & Jonas, T. Assimilation of point SWE data into a distributed snow cover model comparing two contrasting methods. Water Resour. Res. 50, 7816–7835 (2014).ADS 

    Google Scholar 
    69.Helbig, N., van Herwijnen, A., Magnusson, J. & Jonas, T. Fractional snow-covered area parameterization over complex topography. Hydrol. Earth Syst. Sci. 19, 1339–1351 (2015).ADS 

    Google Scholar 
    70.Begert, M. & Frei, C. Long-term area-mean temperature series for Switzerland—Combining homogenized station data and high resolution grid data. Int. J. Climatol. 38, 2792–2807 (2018).
    Google Scholar 
    71.Bates, D., Mächler, M., Bolker, B. & Walker, S. Fitting linear mixed-effects models using lme4. ArXiv e-prints 1406 (2015).72.R Core Team. R: A Language and Environment for Statistical Computing. (2020).73.Gelman, A. & Su, Y.-S. Arm: Data analysis using regression and multilevel/hierarchical models. (2020).74.Carpenter, B. et al. Stan: A probabilistic programming language. J. Stat. Softw. 76 (2017).75.Stan Development Team. RStan: The R interface to Stan. (2020).76.Gabry, J. shinystan: Interactive Visual and Numerical Diagnostics and Posterior Analysis for Bayesian Models. (2018).77.Pebesma, E. J. Multivariable geostatistics in S: The gstat package. Comput. Geosci. 30, 683–691 (2004).ADS 

    Google Scholar 
    78.Pebesma, E. & Bivand, R. S. S classes and methods for spatial data: the sp package. R News 5, 9–13 (2005).
    Google Scholar 
    79.Gelman, A. & Greenland, S. Are confidence intervals better termed “uncertainty intervals”?. BMJ 366, I5381 (2019).
    Google Scholar  More

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    Prevalence of Toxoplasma gondii infection among small mammals in Tatarstan, Russian Federation

    Study area and samplingSmall mammals (murid rodents and shrews) were captured using mouse-type snap traps in Tatarstan, Russian Federation (Fig. 1, Table S1). Area type (urban or rural), vegetation (forest or field) and distance from trapping points to the nearest human settlement were recorded. The distinction between forest and field was made based on the UN Food and Agriculture Organization’s criteria23,24. Each administrative division in the Tatarstan was defined to be urban or rural by the Federal Service of State Statistics of Russian Federation25. Based on these criteria, Kazan city and Naberezhnye Chelny city were classified as urban districts and Vysokogorsky district, Yelabuzhsky district, Laishevsky district, Mamadyshsky district, Nizhnekamsky district, Pestrechinsky district and Tukayevsky district were classified as rural districts. Small mammals were captured during the spring and fall periods of 2016 and 2017. Fifty traps were placed in a line every 5 m in one place. Traps were baited and left for one night. Animal suffering was minimized as snap traps cause rapid death in murid rodents and shrews. Each captured small mammal’s species, age, and sex were morphologically identified using a reference guide26, and the animals were then stored at − 20 °C until their brains were isolated.EthicsAll experiments were performed in compliance with relevant Russian and Japanese and institutional laws and guidelines and were approved by the Ministry of Health of the Russian Federation and the Animal Research Committee of Gifu University (Permit Nos. MU 3.1.1029-01, and 17060, respectively). Study was carried out in compliance with the ARRIVE guidelines (https://arriveguidelines.org).DNA extraction and PCRBrain tissue samples were prepared as described previously12. Brain samples stored at − 20 °C were transferred to a − 86 °C deep freezer. Each deep-frozen whole brain sample was homogenized in 1 ml of a 0.9% saline solution. Total DNA was extracted from the brain tissues of each small mammal using a Genomic DNA Purification Kit (Promega, Madison, WI, USA), following the manufacturer’s instructions. Nested PCR was performed with the Takara PCR Amplification Kit (Takara Bio Inc., Foster City, California, USA) according to the manufacturer’s instructions. The primer sets and PCR conditions used to detect the B1 gene from T. gondii were those described previously12.MappingSpatial referencing of the sampling sites was conducted using global positioning system navigation with a Garmin eTrex 10 device. Visualization of cartographic data and measurements of the distances from the trapping points to the nearest human settlements were performed using QGIS 3.12 software27. Geodetic coordinates were projected into planar rectangular coordinates in the Universal Transverse Mercator projection on the WGS-84 ellipsoid (Universal Transverse Mercator, zone 39N). The overview map of the European part of Russia was made in the Lambert Conformal Conic Projection. Map coordinates are represented as geodetic coordinates (WGS-84, degrees and minutes north latitude and east longitude). To visualize thematic objects (administrative boundaries, forests, agricultural lands, and water bodies), a set of vector data layers, NextGIS (Russia), was purchased from OpenStreetMap and contributors, 2021 (https://data.nextgis.com). Data license: ODbL.Dataset and statistical analysesMultivariate logistic regression was performed using the R statistical software package (version 3.6.3)28 to assess the trapping point area (urban or rural), vegetation (forest or field), small mammal species type (alien or non-alien species), age (0–2 months-old juveniles, 3–6 months-old adults or ≧ 6 months old), sex (male or female) and distance from trapping points to the nearest human settlements as risk factors for PCR positivity. According to previous reports2,13,16,17,18, four species, Mi. arvalis, A. flavicollis, A. agrarius, A. uralensis, and three species, My. glareolus, S. araneus and D. nitedula are considered alien and non-alien species, respectively. Quantitative data were replaced with 0 or 1 dummy variables, and age data were replaced by 0, 1 and 2 for juveniles, adults and elders, respectively. Multicollinearity of the explanatory variables was evaluated using Spearman’s coefficient29 calculated using dplyr, FSA and psych packages30,31,32. None of the Spearman’s coefficients were  > 0.6. To find the best fit model, a forward selection procedure was used. Predictive performance and model fitting were assessed using the area under the receiver operating characteristic (ROC) curve, area under the curve (AUC) and corrected Akaike’s information criterion (AICc) with Akaike weight (Wi). AICc and Wi were calculated using the MuMIN package33, and the AUC was calculated using the R pROC package34. P-values of  More

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    Penetrative and non-penetrative interaction between Laboulbeniales fungi and their arthropod hosts

    The micro-CT results from Arthrorhynchus agree perfectly with the previously known light microscope and transmission electron microscope images2. This emphasizes that microtomography is a good technique to visualize the type of fungal attachment to the host and especially the penetration of the cuticle, apart from the study of thallus in amber fossils17. As Jensen et al. (2019) demonstrated the presence of a haustorium in Arthrorhynchus using scanning electron microscopy, we are confident that the lack of penetration and haustorium in Rickia found by micro-CT is real. This is also in agreement with results from the scanning electron microscopical investigation of the attachment sites of R. gigas, which exhibits no indication of penetration and are very similar to those of R. wasmannii previously shown18.Despite the absence of a haustorium, and hence without any obvious means of obtaining nutrition, Rickia gigas is quite a successful fungus, being often abundant on several species of Afrotropical millipedes of the family Spirostreptidae10. It was originally described from Archispirostreptus gigas, and Tropostreptus (= ‘Spirostreptus’) hamatus20, and was subsequently reported from several other Tropostreptus species19.A further challenge for Laboulbeniales growing on millipedes is that infected millipedes, in some species even adults, may moult, shedding the exuviae with the fungus, as has been observed by us on an undescribed Rickia species on a millipede of the genus Spirobolus (family Spirobolidae).The question of how non-haustoriate Laboulbeniales obtain nutrients has been discussed by several authors18, including staining experiments using fungi of the non-haustoriate genus Laboulbenia on various beetles21. Whereas the surface of the main thallus was almost impenetrable to the dye applied (Nile Blue), the smaller appendages could sometimes be penetrated21. The dye injection into the beetle elytra upon which the fungi were sitting, actually spread from the elytron into the fungus, thus indicating that in spite of the lack of a haustorium, the fungus is able to extract nutrients from the interior of its host21.Such experiments have not been performed on Rickia species, but the possibility that nutrients may pass from the host into the basis of the fungus cannot be excluded. For this genus, or at least R. gigas, there may, however, be an alternative way to obtain nutrients: the small opening in the circular wall by which the thallus is attached to the host may allow nutrients from the surface of the millipede or from the environment to seep into the foot of the fungus. However, further experiments are needed in order to evaluate this hypothesis. Moreover, we should not exclude a potential role of primary and secondary appendages in Laboulbeniales nutrition, as we still do not understand exactly their functional role on the fungus life cycle11.The predominant position of the Laboulbeniales on the host might be related to the absence or presence of a haustorium. Thus, the haustoriate species of the genus Arthrorhynchus are most frequently encountered in large numbers on the arthrodial membranes of the host’s abdomen, although some thalli are found on legs2,22. At the arthrodial membranes the cuticle is more flexible and therefore might be easier to penetrate by a parasite. Furthermore, most tissues providing/storing nutrition (e.g., fat body) are located within the abdomen. In contrast, non-haustoriate fungi as are often located on more stiff and sclerotized body-parts like the genus Rickia on the legs or body-rings of millipedes7,20,23 or the genus Laboulbenia on the elytra of beetles21,24. A reason for this might be that the non-haustoriate forms, which are only superficially attached to the host need a more or less smooth surface for adherence and can easily become detached from a flexible surface, which is movable in itself, like the arthrodial membrane, while the haustoriate forms are firmly anchored within the hosts’ cuticle.Whereas the vast majority of the more than 2000 described species of Laboulbeniales show no sign of host penetration, haustoria have been reported from some other genera18, including Trenomyces parasitizing bird lice25,26, Hesperomyces growing on coccinellid beetles and Herpomyces on cockroaches (formerly a Laboulbeniales and now in the order Herpomycetales10), with pernicious consequences on the hosts’ fitness18,27. Micro-CT studies on these genera could help to understand the host penetration. In order to fully understand how Laboulbeniales obtain nourishment, although other approaches are, also needed—for the time being it remains a mystery how the non-haustoriate Laboulbeniales sustain themselves. More

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    The first report of iron-rich population of adapted medicinal spinach (Blitum virgatum L.) compared with cultivated spinach (Spinacia oleracea L.)

    Collection and domestication of the wild populationsThe academic permission for collections and research on medicinal plants was obtained from the Head of Biotechnology Department, Research Institute of Modern Biological Techniques, University of Zanjan, Zanjan, Iran. The study complies with all relevant guidelines. Some populations of wild spinaches were harvested during spring season 2013 from the mountain habitat of this wild plant in the Tarom region of Zanjan province from an altitude of 2500–3000 m and were transferred to the greenhouses conditions. The domestication and cultivation experiments were conducted at Research Institute of Modern Biological Techniques, University of Zanjan, 1579° m above sea level, with 48° 28′ longitude and 36° 40′ latitude, from April 2013 to August 2020. The resulted seeds were cultured on pots to produce adequate seeds. The seedlings were transferred to the field with rows spaced 50 cm apart and also 50 cm between plants within the rows. Two seeds per hill were planted in an area of approximately 50 m2. Based on the organic conditions, no fertilization was performed. Thinning was done 25 days after emergence, leaving one plant per hill. The other cultural practices were those normally adopted for cultivation in the region.Mass selection of populationsIn the first year, phenotypic studies were performed during the growing season and weak, diseased and underdeveloped plants were removed from the field before the flowering stage. Then plants with the same phenotype and the desired traits were selected and after harvesting, their seeds were mixed. This election cycle was repeated for 5 years. In the final year, the new mass selected population was compared in a pilot project with cultivated spinach in traits such as yield, resistance to wilt, cold and pests, diseases, and mineral contents. This variety before the certification in the related national organization is a candida cultivar. It is a developed population that will be evaluated in the session of the Iranian variety of introduction committee.The seeds of cultivated spinach (Spinacia oleracea L. |Varamin 88|) were prepared from the Research Institute of Modern Biological Techniques, University of Zanjan, Zanjan, Iran.Performing tests of stability, uniformity and differentiationTo assess morphologically and differentiate advanced uniformity in the studied population (Candida cultivar), the population was managed as a randomized complete block design with three replications over 2 years according to the instructions for spinach differentiation, uniformity, and stability (DUS Testing) of the International Union New Plant Cultivation (UPOV) and some morphological traits on plants or parts of plants. The studied traits included: cotyledon length, presence or absence of anthocyanin in petiole and veins, green color intensity, shrinkage, presence of lobes in the petiole, petiole state, petiole length, foil shape, foil edge shape, tip shape, and part of the length of the petiole, the time of flowering and the color of the seeds.Mineral analysesTo compare the mineral content of mass-selected population-medicinal spinach (MSP) with cultivated spinach (Spinacia oleracea L. var. Varamin 88), both plants were planted in pots and fields on similar conditions. In five leaves stage, plant samples were taken from both leaf and crown sections. The sampling method was such that after removing half a meter from the beginning and end of each plot (to remove the marginal effect) and also removing the two sidelines, five plants were harvested randomly for plant mineral analysis. Atomic absorption spectroscopy was used to determine the mineral content including iron (Fe), zinc (Z), manganese (Mn), and copper (Cu).The dried samples of root-crown and leave were stored, and later grounded and analyzed for iron (Fe), zinc (Z), manganese (Mn), and copper (Cu) in mass-selected variety (MSP) and cultivated spinach (CSP). Studied minerals were measured using atomic absorption spectrometry in the model of GBC AVANTA (GBC scientific equipment Ltd., Melbourne, Vic., Australia).Calibration of AAS was done using the working standard prepared from commercially available metal/mineral standard solutions (1000 μg/mL, Merck, Germany). The most appropriate wavelength, hollow cathode lamp current, gas mixture flow rate, slit width, and other AAS instrument parameters for metals/minerals were selected as given in the instrument user’s manual, and background correction was used during the determination of metals/minerals. Measurements were made within the linear range of working standards used for calibration15,16.The concentrations of all the minerals were expressed as mg/1000 g (ppm) dry weight of the sample. Each value is the mean of three replicate determination ± standard deviation.Scanning electron microscopy (SEM)For SEM studies, the seeds enveloping were removed and were acetolyzed in a 1:9 sulfuric acid-acetic anhydride solution. The seeds were vigorously shaken for 5 min. Then, they were left for 24–48 h in the solution. After this time, seeds were again shaken for 5 min and then washed.in distilled water by shaking for a further 5 min. The seeds were dried overnight and then were mounted on stubs and covered with Au–Pd by sputter coater model SC 7620. After coating, coated seeds were photographed with an LEO 1450 VP Scanning Electron Microscope. All photographs were taken in the Taban laboratory (Tehran, Iran).Statistical analysisThe statistical evaluation including: data transformation, analysis of variance and comparison of means were performed (SPSS software, Version 11.0). The experiment was structured following a randomized complete block design (RCBD) with three replications. Means comparisons were conducted using an ANOVA protected the least significant difference (LSD) test, with the ANOVA confidence levels of 0.95. Data were presented with their standard deviations (SD). More

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    Incorporating the field border effect to reduce the predicted uncertainty of pollen dispersal model in Asia

    Dispersal modelsIn this study, the dispersal model consists of two parts, namely, kernel and observation model (Fig. 1). The main purpose of the kernel was employed to estimate the proportion of pollen dispersed from location s′ to location s and calculate the expected number of CP grains. The observation model used the expected number of CP grains as a parameter and described the number of CP grains at location s (Ys) by a specific distribution in the following:$${Y}_{s}sim fleft(left.{y}_{s}right|{{varvec{theta}}}_{s}right),$$
    (1)
    where f indicates the probability density function (PDF) of the specific distribution. The θs is the parameter vector of the distribution. This study constructed eight different dispersal models combined with two observation models, two kernels, and two conditions of the field border (FB) effect (Table 1). The details of the kernels and observation models were described in the following subsections.Figure 1Graphical summary of the establishment of the dispersal model using ZIP distribution observation model as an example.Full size imageTable 1 List of dispersal models constructed in this study.Full size tableKernelsThe kernel indicates the probability when the pollen emitted at location s′ and would fall down at location s. It can be expressed as γ(s, s′), where s′ is the source location closest to location s. Numerous kernels have been used to describe various dispersal phenomena24. The output of the kernel represents the donor pollen density of location s. In order to calculate the expected number of CP grains, the donor pollen density is multiplied by the average total grain number described as follows:$${lambda }_{s}=Ktimes gamma left(s,{s}^{^{prime}}right),$$
    (2)
    where λs and K indicate the expected number of CP grains at location s and the average number of grains per cob, respectively. The effect of the FB was introduced into the kernel to suit to the small-scale farming system in Asia. This study assumed that the relation between the pollen density at the first recipient row and the width of the FB displayed an exponential decrease25,26. To evaluate the improvement of the kernel with the FB effect, the kernels without the FB effect were also established in this study.The compound exponential kernel (γExpo) has been used in the previous pollen dispersal study27. Our study introduced the FB effect into this kernel. Therefore, the form of the compound exponential kernel can be expressed as follows:$$gamma_{{{text{Expo}}}} left( {s,s^{prime}} right) = left{ {begin{array}{*{20}l} {K_{e} exp left( { – a_{1} d^{*} left( {s,s^{prime}} right)} right)exp left( { – ksqrt {FB} } right),} \ {K_{e} exp left( { – a_{1} D – a_{2} left( {d^{*} left( {s,s^{prime}} right) – D} right)} right)exp left( { – ksqrt {FB} } right),} \ end{array} } right.begin{array}{*{20}l} {{text{if}},, d^{*} left( {s,s^{prime}} right) le D} \ {{text{if}} ,,d^{*} left( {s,s^{prime}} right) > D,} \ end{array}$$
    (3)
    where Ke, a1, a2, k, D are the parameters of the kernel. d*(s, s′) indicates the shortest distance between locations s′ and s in which the width of the FB has been subtracted. In the compound exponential kernel without the FB effect, the exponential term of the FB effect was removed and the d*(s, s′) was replaced directly by the shortest distance between s′ and s.The second kernel applied in this study was the modified Cauchy kernel (γCauchy) which was based on the PDF of the Cauchy distribution and the concept of compound distribution. The modified Cauchy kernel is represented as follows:$$gamma_{Cauchy} left( {s,s^{prime}} right) = left{ {begin{array}{*{20}l} {frac{2beta }{{pi left[ {beta^{2} + d^{*} left( {s,s^{prime}} right)^{2} } right]}}{text{exp}}left( { – ksqrt {FB} } right),} \ {frac{2beta }{{pi left[ {beta^{2} + D^{2} + c_{1} left( {d^{*} left( {s,s^{prime}} right) – D} right)^{2} } right]}}{text{exp}}left( { – ksqrt {FB} } right),} \ end{array} } right.begin{array}{*{20}l} {{text{if}} ,,d^{*} left( {s,s^{prime}} right) le D} \ {{text{if}} ,,d^{*} left( {s,s^{prime}} right) > D,} \ end{array}$$
    (4)
    where the β indicates the decline rate of the curve. Parameters of k and D are same as the compound exponential kernel. c1 indicates the relative slow decrease of pollen density at further distances. Similarly, in the modified Cauchy kernel without the FB effect, the term of the FB effect was removed and the d*(s, s′) was replaced directly by the shortest distance between s′ and s in which the row spacing (0.75 m) had been subtracted.Observation modelsBecause of the high proportions of zero value observations, the present study assumed that the CP grain count followed the zero-inflated Poisson (ZIP) distribution to account for zero-excess condition28. The ZIP distribution was first proposed by Lambert29, and several studies had applied the ZIP distribution to deal with the CP data27,30. The ZIP distribution consists of a Dirac distribution in zero and a Poisson distribution. Therefore, the distribution of CP grain count at location s (Ys) can be expressed as follows:$${Y}_{s}sim mathrm{ZIP}left(1-{q}_{s},{uplambda }_{s}right),$$
    (5)
    where qs indicates the probability of an observation following a Poisson distribution, and λs is the parameter of Poisson distribution calculated by Eq. (2). Furthermore, the parameter qs can be assumed to depend on the shortest distance between the recipient and donor plants. The border effect is also included in the estimation of qs because it is related to the distance effect. The relationship among distance, border, and the qs can be described using the following logistic function:$${q}_{s}=frac{1}{1+mathrm{exp}({b}_{1}-{b}_{2}{d}^{*}left(s,{s}^{^{prime}}right))},$$
    (6)
    where b1 and b2 are the parameters of the logistic function. The d*(s, s′) was the shortest distance between s′ and s in the version of dispersal models without the FB effect. The Poisson distribution was also used as an observation model for comparison with the ZIP observation model.Experimental and meteorological data collectionThe pollen dispersal data were collected from experiments performed in 2009 and 2010 at the geographic coordinates 23° 47′ N, 120° 26′ E, and an altitude of 20 m. These experiments were coded as 2009-1, 2009-2, and 2010-1, respectively. The experiment 2009-2 was divided into 2009-2A (without the FB) and 2009-2B (with the FB) based on the presence of the FB. The different layouts of the field experiments were designed to investigate the effect of the FB. Two commercial glutinous maize varieties, black pearl (purple grain) and Tainan No. 23 (white grain), were selected as the pollen donor and pollen recipient, respectively. The distance between the plants in a row was 25 cm, whereas the distance between the rows was 75 cm. The recipient plots consisted of 82 and 91 rows in 2009 and 2010 experiments, respectively.The CP rate was determined based on the differences in grain color on recipient cobs as a result of the xenia effect31. In the sampling framework, the whole field was divided into many grids and corn samples were collected from each grid in the whole field. The CP rate of each grid was calculated using the method presented in a previous study32 and defined as:$$mathrm{CP}left(%right)=left[sum_{i=1}^{n}{Cob}_{i}/left(ntimes Kright)right],$$
    (7)

    where Cobi and n indicate ith cob and total number of cobs in the grid, respectively. K is the average grain number per cob. Meteorological data were collected from the meteorological station at geographic coordinates 23° 35′ N, 120° 27′ E, and an altitude of 20 m. The detailed experimental setup was described in our previous study33. The study complies with relevant institutional, national, and international guidelines and legislation.Statistical analysesAll statistical analyses were performed using SAS (Statistical Analysis System, version 9.4). The dispersal model parameters were estimated by two methods. First, the nonlinear model estimation was conducted by PROC NLMIXED to evaluate the fitting and predictive abilities of dispersal models. Then the dispersal models with the observation model performed better fitting ability were re-estimated using the Bayesian estimation method to assess the uncertainty by PROC MCMC. In the Bayesian method, the noninformative prior distribution was used to estimate all parameters (Supplementary Table S1). The iteration of Markov Chain was 500,000 times and the burn-in was set to 450,000 iterations. In order to reduce the autocorrelations in the chain, the thinned value was set to 25.The validation method used in this study was the threefold cross-validation for the results of both estimation methods. The data from three experiments were combined and randomly partitioned into three sub-datasets. To avoid the heterogeneity of the different field designs and distances among sub-datasets, the observations from the same field design and same distance were considered as a group, and then partitioned into three parts. Each sub-dataset contained one part of all groups. At each validation run, two sub-datasets were selected as the training set, and the remaining one was used for validation.The fitting ability of the dispersal models was evaluated based on two criteria, namely, Akaike information criterion (AIC), Deviance, and coefficient of determination (R2). The smaller values of AIC or deviance indicate a better fitting. The higher R2 value represents a better fitting performance. The correlation coefficient (r) between the predicted and actual CP rates was used to assess the predictive ability. The deviance information criterion (DIC) was used to evaluate the performance of dispersal model fitting for the Bayesian estimation. The criterion values calculated from three training and validation sets were averaged to assess the overall results. The uncertainty of the model parameter was quantified by the standard deviation (SD) of parameter posterior distribution. The 95% credible intervals of posterior predictive distribution constructed by the 2.5th and 97.5th percentiles of 200,000 samples generated from the posterior predictive distribution were used to assess the predictive uncertainty. Furthermore, to assess the zero-excess condition, the percentage of observed zero CP grain events was compared with the Poisson probability of the zero CP grain event. A zero-excess condition occurred if the observed percentage was higher than the Poisson probability34. More

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    Horizontal gene transfer and adaptive evolution in bacteria

    1.Maynard Smith, J., Feil, E. J. & Smith, N. H. Population structure and evolutionary dynamics of pathogenic bacteria. Bioessays 22, 1115–1122 (2000).
    Google Scholar 
    2.Garud, N. R., Good, B. H., Hallatschek, O. & Pollard, K. S. Evolutionary dynamics of bacteria in the gut microbiome within and across hosts. PLoS Biol. 17, e3000102 (2019). Using metagenomic samples form the human gut microbiome, the authors infer lineage structure from within-host polymorphisms in more than 40 species to show adaptation on short timescales can be seeded by HGT.PubMed 
    PubMed Central 

    Google Scholar 
    3.Frazão, N., Sousa, A., Lässig, M. & Gordo, I. Horizontal gene transfer overrides mutation in Escherichia coli colonizing the mammalian gut. Proc. Natl Acad. Sci. USA 116, 17906–17915 (2019). Using the mouse microbiome as a study system, the authors show that rapid, phage-mediated HGT can transfer beneficial genes — already present in a resident strain — to an invading strain.PubMed 
    PubMed Central 

    Google Scholar 
    4.Smith, J. M., Smith, N. H., O’Rourke, M. & Spratt, B. G. How clonal are bacteria? Proc. Natl Acad. Sci. USA 90, 4384–4388 (1993).PubMed 
    PubMed Central 

    Google Scholar 
    5.Dykhuizen, D. E. & Green, L. Recombination in Escherichia coli and the definition of biological species. J. Bacteriol. 173, 7257–7268 (1991).PubMed 
    PubMed Central 

    Google Scholar 
    6.Feil, E. J. et al. Recombination within natural populations of pathogenic bacteria: short-term empirical estimates and long-term phylogenetic consequences. Proc. Natl Acad. Sci. USA 98, 182–187 (2001).PubMed 
    PubMed Central 

    Google Scholar 
    7.Suerbaum, S. et al. Free recombination within Helicobacter pylori. PNAS 95, 12619–12624 (1998).PubMed 
    PubMed Central 

    Google Scholar 
    8.Smillie, C. S. et al. Ecology drives a global network of gene exchange connecting the human microbiome. Nature 480, 241–244 (2011).PubMed 

    Google Scholar 
    9.Lozupone, C. A. et al. The convergence of carbohydrate active gene repertoires in human gut microbes. Proc. Natl Acad. Sci. USA 105, 15076–15081 (2008).PubMed 
    PubMed Central 

    Google Scholar 
    10.Bradley, P. H., Nayfach, S. & Pollard, K. S. Phylogeny-corrected identification of microbial gene families relevant to human gut colonization. PLoS Computational Biol. 14, e1006242 (2018). The authors use phylogenetic linear regression to control for important confounders and identify genes potentially involved in adaptation to the human gut.
    Google Scholar 
    11.Andreani, N. A., Hesse, E. & Vos, M. Prokaryote genome fluidity is dependent on effective population size. ISME J. 11, 1719–1721 (2017).PubMed 
    PubMed Central 

    Google Scholar 
    12.Mcinerney, J. O., Mcnally, A. & Connell, M. J. O. Why prokaryotes have pangenomes. Nat. Publ. Gr. 2, 1–5 (2017).
    Google Scholar 
    13.Shapiro, B. J. The population genetics of pangenomes. Nat. Microbiol. 2, 1005860 (2017).
    Google Scholar 
    14.Vos, M. & Eyre-walker, A. Are pangenomes adaptive or not? Nat. Microbiol. https://doi.org/10.1038/s41564-017-0067-5 (2017).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    15.Johnsborg, O., Eldholm, V. & Håvarstein, L. S. Natural genetic transformation: prevalence, mechanisms and function. Res. Microbiol. 158, 767–778 (2007).PubMed 

    Google Scholar 
    16.Johnston, C., Martin, B., Fichant, G., Polard, P. & Claverys, J. P. Bacterial transformation: distribution, shared mechanisms and divergent control. Nat. Rev. Microbiol. 12, 181–196 (2014).PubMed 

    Google Scholar 
    17.Pimentel, Z. T. & Zhang, Y. Evolution of the natural transformation protein, ComEC, in Bacteria. Front. Microbiol. 9, 1–10 (2018).
    Google Scholar 
    18.Roux, S., Hallam, S. J., Woyke, T. & Sullivan, M. B. Viral dark matter and virus–host interactions resolved from publicly available microbial genomes. eLife 4, 1–20 (2015).
    Google Scholar 
    19.Camarillo-Guerrero, L. F. et al. Massive expansion of human gut bacteriophage diversity. Cell 184, 1098–1109.e9 (2021).PubMed 
    PubMed Central 

    Google Scholar 
    20.Guglielmini, J., Quintais, L., Garcillán-Barcia, M. P., de la Cruz, F. & Rocha, E. P. C. The repertoire of ice in prokaryotes underscores the unity, diversity, and ubiquity of conjugation. PLoS Genet. 7, e1002222 (2011).PubMed 
    PubMed Central 

    Google Scholar 
    21.Dubey, G. P. & Ben-Yehuda, S. Intercellular nanotubes mediate bacterial communication. Cell 144, 590–600 (2011).PubMed 

    Google Scholar 
    22.Abe, K., Nomura, N. & Suzuki, S. Biofilms: hot spots of horizontal gene transfer (HGT) in aquatic environments, with a focus on a new HGT mechanism. FEMS Microbiol. Ecol. 96, 1–12 (2020).
    Google Scholar 
    23.Bárdy, P. et al. Structure and mechanism of DNA delivery of a gene transfer agent. Nat. Commun. 11, 3034 (2020).PubMed 
    PubMed Central 

    Google Scholar 
    24.Hasegawa, H., Suzuki, E. & Maeda, S. Horizontal plasmid transfer by transformation in Escherichia coli: environmental factors and possible mechanisms. Front. Microbiol. 9, 1–6 (2018).
    Google Scholar 
    25.Seitz, P. & Blokesch, M. Cues and regulatory pathways involved in natural competence and transformation in pathogenic and environmental Gram-negative bacteria. FEMS Microbiol. Rev. 37, 336–363 (2013).PubMed 

    Google Scholar 
    26.Wall, D. Kin recognition in bacteria. Annu. Rev. Microbiol. 70, 143–160 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    27.Frye, S. A., Nilsen, M., Tønjum, T. & Ambur, O. H. Dialects of the DNA uptake sequence in Neisseriaceae. PLoS Genet. https://doi.org/10.1371/journal.pgen.1003458 (2013).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    28.Redfield, R. J. et al. Evolution of competence and DNA uptake specificity in the Pasteurellaceae. BMC Evol. Biol. 6, 1–15 (2006).
    Google Scholar 
    29.Dion, M. B., Oechslin, F. & Moineau, S. Phage diversity, genomics and phylogeny. Nat. Rev. Microbiol. https://doi.org/10.1038/s41579-019-0311-5 (2020).Article 
    PubMed 

    Google Scholar 
    30.Siguier, P., Gourbeyre, E. & Chandler, M. Bacterial insertion sequences: their genomic impact and diversity. FEMS Microbiol. Rev. 38, 865–891 (2014).PubMed 

    Google Scholar 
    31.Vulić, M., Dionisio, F., Taddei, F. & Radman, M. Molecular keys to speciation: DNA polymorphism and the control of genetic exchange in enterobacteria. Proc. Natl Acad. Sci. USA 94, 9763–9767 (1997).PubMed 
    PubMed Central 

    Google Scholar 
    32.Majewski, J. et al. Barriers to genetic exchange between bacterial species: Streptococcus pneumoniae transformation. J. Bacteriol. 182, 1016–1023 (2000).PubMed 
    PubMed Central 

    Google Scholar 
    33.Wyres, K. L. et al. Pneumococcal capsular switching: a historical perspective. J. Infect. Dis. 207, 439–449 (2013).PubMed 

    Google Scholar 
    34.Hallet, B. & Sherratt, D. J. Transposition and site-specific recombination: adapting DNA cut-and-paste mechanisms to a variety of genetic rearrangements. FEMS Microbiol. Rev. 21, 157–178 (1997).PubMed 

    Google Scholar 
    35.Durrant, M. G., Li, M. M., Siranosian, B. A., Montgomery, S. B. & Bhatt, A. S. A bioinformatic analysis of integrative mobile genetic elements highlights their role in bacterial adaptation. Cell Host Microbe 27, 140–153.e9 (2020).PubMed 

    Google Scholar 
    36.Rajeev, L., Malanowska, K. & Gardner, J. F. Challenging a paradigm: the role of DNA homology in tyrosine recombinase reactions. Microbiol. Mol. Biol. Rev. 73, 300–309 (2009).PubMed 
    PubMed Central 

    Google Scholar 
    37.Hickman, A. B., Chandler, M. & Dyda, F. Integrating prokaryotes and eukaryotes: DNA transposases in light of structure. Crit. Rev. Biochem. Mol. Biol. 45, 50–69 (2010).PubMed 
    PubMed Central 

    Google Scholar 
    38.Oliveira, P. H., Touchon, M., Cury, J. & Rocha, E. P. C. The chromosomal organization of horizontal gene transfer in bacteria. Nat. Commun. 8, 1–10 (2017).
    Google Scholar 
    39.Wadsworth, C. B., Arnold, B. J., Sater, M. R. A. & Grad, Y. Azithromycin resistance through interspecific acquisition of an epistasis-dependent efflux pump component and transcriptional regulator in Neisseria gonorrhoeae. mBio 9, 1–17 (2018).
    Google Scholar 
    40.Arevalo, P., VanInsberghe, D., Elsherbini, J., Gore, J. & Polz, M. F. A reverse ecology approach based on a biological definition of microbial populations. Cell 178, 820–834.e14 (2019). The authors create a metric of recent gene flow to define ecological populations and discover genes that have experienced positive selection across populations.PubMed 

    Google Scholar 
    41.Croucher, N. J. et al. Horizontal DNA transfer mechanisms of bacteria as weapons of intragenomic conflict. PLoS Biol. 14, 1–42 (2016). A model of transformation with known bias towards the acquisition of shorter alleles suggests HGT may effectively purge bacterial genomes of parasitic MGEs.
    Google Scholar 
    42.Apagyi, K. J., Fraser, C. & Croucher, N. J. Transformation asymmetry and the evolution of the bacterial accessory genome. Mol. Biol. Evol. 35, 575–581 (2018).PubMed 

    Google Scholar 
    43.Mira, A., Ochman, H. & Moran, N. A. Deletional bias and the evolution of bacterial genomes. Trends Genet. 17, 589–596 (2001).PubMed 

    Google Scholar 
    44.Kuo, C.-H. & Ochman, H. Deletional bias across the three domains of life. Genome Biol. Evol. 1, 145–152 (2009).PubMed 
    PubMed Central 

    Google Scholar 
    45.Lawrence, J. G. & Roth, J. R. Selfish operons: horizontal transfer may drive the evolution of gene clusters. Genetics 143, 1843–1860 (1996).PubMed 
    PubMed Central 

    Google Scholar 
    46.Hehemann, J. H. et al. Transfer of carbohydrate-active enzymes from marine bacteria to Japanese gut microbiota. Nature 464, 908–912 (2010).PubMed 

    Google Scholar 
    47.Campbell, A. Prophage insertion sites. Res. Microbiol. 154, 277–282 (2003).PubMed 

    Google Scholar 
    48.Chu, N. D. et al. A mobile element in mutS drives hypermutation in a marine Vibrio. mBio 8, 1–13 (2017).
    Google Scholar 
    49.Bobay, L. M., Rocha, E. P. C. & Touchon, M. The adaptation of temperate bacteriophages to their host genomes. Mol. Biol. Evol. 30, 737–751 (2013).PubMed 

    Google Scholar 
    50.Lee, H., Doak, T. G., Popodi, E., Foster, P. L. & Tang, H. Insertion sequence-caused large-scale rearrangements in the genome of Escherichia coli. Nucleic Acids Res. 44, 7109–7119 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    51.Parkhill, J. et al. Comparative analysis of the genome sequences of Bordetella pertussis, Bordetella parapertussis and Bordetella bronchiseptica. Nat. Genet. 35, 32–40 (2003).PubMed 

    Google Scholar 
    52.Moran, N. A. & Plague, G. R. Genomic changes following host restriction in bacteria. Curr. Opin. Genet. Dev. 14, 627–633 (2004).PubMed 

    Google Scholar 
    53.Hendry, T. et al. Ongoing transposon-mediated genome reduction in the luminous bacterial symbionts of deep-sea ceratioid anglerfishes. mBio https://doi.org/10.1128/mBio.01033-18 (2018).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    54.Waterworth, S. C. et al. Horizontal gene transfer to a defensive symbiont with a reduced genome in a multipartite beetle microbiome. mBio https://doi.org/10.1128/mBio.02430-19 (2020).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    55.Vos, M. et al. Rates of lateral gene transfer in prokaryotes: high but why? Trends Microbiol. 23, 598–605 (2015).PubMed 

    Google Scholar 
    56.Cohen, E., Kessler, D. A. & Levine, H. Recombination dramatically speeds up evolution of finite populations. Phys. Rev. Lett. 94, 1–4 (2005).
    Google Scholar 
    57.Levin, B. R. & Cornejo, O. E. The population and evolutionary dynamics of homologous gene recombination in bacteria. PLoS Genet. https://doi.org/10.1371/journal.pgen.1000601 (2009).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    58.Arnold, B. J. et al. Weak epistasis may drive adaptation in recombining bacteria. Genetics 208, 1247–1260 (2018).PubMed 
    PubMed Central 

    Google Scholar 
    59.Moradigaravand, D. & Engelstädter, J. The effect of bacterial recombination on adaptation on fitness landscapes with limited peak accessibility. PLoS Comput. Biol. 8, 35–37 (2012).
    Google Scholar 
    60.Cooper, T. F. Recombination speeds adaptation by reducing competition between beneficial mutations in populations of Escherichia coli. PLoS Biol. 5, 1899–1905 (2007).
    Google Scholar 
    61.Winkler, J. & Kao, K. C. Harnessing recombination to speed adaptive evolution in Escherichia coli. Metab. Eng. 14, 487–495 (2012).PubMed 

    Google Scholar 
    62.Chu, H. Y., Sprouffske, K. & Wagner, A. The role of recombination in evolutionary adaptation of Escherichia coli to a novel nutrient. J. Evol. Biol. 30, 1692–1711 (2017).PubMed 

    Google Scholar 
    63.Arnold, B. et al. Fine-scale haplotype structure reveals strong signatures of positive selection in a recombining bacterial pathogen. Mol. Biol. Evol. https://doi.org/10.1093/molbev/msz225 (2019).Article 
    PubMed Central 

    Google Scholar 
    64.Yahara, K. et al. The landscape of realized homologous recombination in pathogenic bacteria. Mol. Biol. Evol. 33, 456–471 (2016).PubMed 

    Google Scholar 
    65.Engelstädter, J. & Moradigaravand, D. Adaptation through genetic time travel? Fluctuating selection can drive the evolution of bacterial transformation. Proc. R. Soc. B Biol. Sci. 281, 20132609 (2014).
    Google Scholar 
    66.Cohan, F. M. Periodic selection and ecological diversity in bacteria. Selective Sweep https://doi.org/10.1007/0-387-27651-3_7 (2007).Article 

    Google Scholar 
    67.Shapiro, B. J., David, L. A., Friedman, J. & Alm, E. J. Looking for Darwin’s footprints in the microbial world. Trends Microbiol. 17, 196–204 (2009).PubMed 

    Google Scholar 
    68.Shapiro, B. J. et al. Population genomics of early events in the ecological differentiation of bacteria. Science 336, 48–51 (2012).PubMed 
    PubMed Central 

    Google Scholar 
    69.Rosen, M., Davison, M., Bhaya, D. & Fisher, D. S. Fine-scale diversity and extensive recombination in a quasisexual bacterial population occupying a broad niche. Science 348, 1019–1024 (2015).PubMed 

    Google Scholar 
    70.Bendall, M. L. et al. Genome-wide selective sweeps and gene-specific sweeps in natural bacterial populations. ISME J. 10, 1589–1601 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    71.Porter, S. S., Chang, P. L., Conow, C. A., Dunham, J. P. & Friesen, M. L. Association mapping reveals novel serpentine adaptation gene clusters in a population of symbiotic Mesorhizobium. ISME J. 11, 248–262 (2017).PubMed 

    Google Scholar 
    72.Crits-Christoph, A., Olm, M. R., Diamond, S., Bouma-Gregson, K. & Banfield, J. F. Soil bacterial populations are shaped by recombination and gene-specific selection across a grassland meadow. ISME J. https://doi.org/10.1038/s41396-020-0655-x (2020).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    73.Woods, L. C. et al. Horizontal gene transfer potentiates adaptation by reducing selective constraints on the spread of genetic variation. Proc. Natl Acad. Sci. USA 117, 26868–26875 (2020).PubMed 
    PubMed Central 

    Google Scholar 
    74.Miralles, R., Gerrish, P. J., Moya, A. & Elena, S. F. Clonal interference and the evolution of RNA viruses. Science 285, 1745–1747 (1999).PubMed 

    Google Scholar 
    75.De Visser, J. A. G. M., Zeyl, C. W., Gerrish, P. J., Blanchard, J. L. & Lenski, R. E. Diminishing returns from mutation supply rate in asexual populations. Science 283, 404–406 (1999).PubMed 

    Google Scholar 
    76.Good, B. H., Rouzine, I. M., Balick, D. J., Hallatschek, O. & Desai, M. M. Distribution of fixed beneficial mutations and the rate of adaptation in asexual populations. Proc. Natl Acad. Sci. USA 109, 4950–4955 (2012).PubMed 
    PubMed Central 

    Google Scholar 
    77.Takeuchi, N., Cordero, O. X., Koonin, E. V. & Kaneko, K. Gene-specific selective sweeps in bacteria and archaea caused by negative frequency-dependent selection. BMC Biol. 13, 1–11 (2015). The authors show that in the presence of NFDS, genes or mutations that are unconditionally beneficial can spread through populations only via HGT, giving rise to gene-specific sweeps.
    Google Scholar 
    78.Corander, J. et al. Frequency-dependent selection in vaccine-associated pneumococcal population dynamics. Nat. Ecol. Evol. 2017, 1950–1960 (2018).
    Google Scholar 
    79.Rodriguez-Valera, F. et al. Explaining microbial population genomics through phage predation. Nat. Rev. Microbiol. 7, 828–836 (2009).PubMed 

    Google Scholar 
    80.Good, B. H., McDonald, M. J., Barrick, J. E., Lenski, R. E. & Desai, M. M. The dynamics of molecular evolution over 60,000 generations. Nature 551, 45–50 (2017).PubMed 
    PubMed Central 

    Google Scholar 
    81.Ramiro, R. S., Durão, P., Bank, C. & Gordo, I. Low mutational load allows for high mutation rate variation in gut commensal bacteria. PLoS Biol. https://doi.org/10.1101/568709 (2020).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    82.Holt, R. D. Bringing the Hutchinsonian niche into the 21st century: ecological and evolutionary perspectives. Proc. Natl Acad. Sci. USA 106, 19659–19665 (2009).PubMed 
    PubMed Central 

    Google Scholar 
    83.Cohan, F. M. Transmission in the origins of bacterial diversity, from ecotypes to phyla. Microbiol. Spectr. https://doi.org/10.1128/9781555819743.ch18 (2017).Article 
    PubMed 

    Google Scholar 
    84.Fondi, M. et al. “Every gene is everywhere but the environment selects”: global geolocalization of gene sharing in environmental samples through network analysis. Genome Biol. Evol. 8, 1388–1400 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    85.Cohan, F. M. The effects of rare but promiscuous genetic exchange on evolutionary divergence in prokaryotes. Am. Nat. 143, 965–986 (1994).
    Google Scholar 
    86.Majewski, J. & Cohan, F. M. Adapt globally, act locally: the effect of selective sweeps on bacterial sequence diversity. Genetics 152, 1459–1474 (1999).PubMed 
    PubMed Central 

    Google Scholar 
    87.Messer, P. W. & Petrov, D. A. Population genomics of rapid adaptation by soft selective sweeps. Trends Ecol. Evol. https://doi.org/10.1016/j.tree.2013.08.003 (2013).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    88.Cui, Y. et al. Epidemic clones, oceanic gene pools, and Eco-LD in the free living marine pathogen Vibrio parahaemolyticus. Mol. Biol. Evol. 32, 1396–1410 (2015).PubMed 

    Google Scholar 
    89.Skwark, M. et al. Interacting networks of resistance, virulence and core machinery genes identified by genome-wide epistasis analysis. PLoS Genet. https://doi.org/10.1371/journal.pgen.1006508 (2016).Article 

    Google Scholar 
    90.Pensar, J. et al. Genome-wide epistasis and co-selection study using mutual information. Nucleic Acids Res. 47, e112–e112 (2019).PubMed 
    PubMed Central 

    Google Scholar 
    91.Puranen, S. et al. SuperDCA for genome-wide epistasis analysis. Microb. Genomics 4, e000184 (2018).
    Google Scholar 
    92.Whelan, F. J., Rusilowicz, M. & McInerney, J. O. Coinfinder: detecting significant associations and dissociations in pangenomes. Microb. Genomics 6, e000338 (2020).
    Google Scholar 
    93.Slomka, S. et al. Experimental evolution of bacillus subtilis reveals the evolutionary dynamics of horizontal gene transfer and suggests adaptive and neutral effects. Genetics 216, 543–558 (2020).PubMed 
    PubMed Central 

    Google Scholar 
    94.Maddamsetti, R. & Lenski, R. E. Analysis of bacterial genomes from an evolution experiment with horizontal gene transfer shows that recombination can sometimes overwhelm selection. PLoS Genet. 14, 1–30 (2018).
    Google Scholar 
    95.Knöppel, A., Lind, P. A., Lustig, U., Näsvall, J. & Andersson, D. I. Minor fitness costs in an experimental model of horizontal gene transfer in bacteria. Mol. Biol. Evol. 31, 1220–1227 (2014).PubMed 

    Google Scholar 
    96.Collins, R. E. & Higgs, P. G. Testing the infinitely many genes model for the evolution of the bacterial core genome and pangenome. Mol. Biol. Evol. 29, 3413–3425 (2012).PubMed 

    Google Scholar 
    97.Baumdicker, F., Hess, W. R. & Pfaffelhuber, P. The infinitely many genes model for the distributed genome of bacteria. Genome Biol. Evol. 4, 443–456 (2012).PubMed 
    PubMed Central 

    Google Scholar 
    98.Haegeman, B. & Weitz, J. S. A neutral theory of genome evolution and the frequency distribution of genes. BMC Genomics 13, 196 (2012).PubMed 
    PubMed Central 

    Google Scholar 
    99.Hughes, A. L. Evidence for abundant slightly deleterious polymorphisms in bacterial populations. Genetics 169, 533–538 (2005).PubMed 
    PubMed Central 

    Google Scholar 
    100.Van Passel, M. W. J., Marri, P. R. & Ochman, H. The emergence and fate of horizontally acquired genes in Escherichia coli. PLoS Comput. Biol. 4, e1000059 (2008).PubMed 
    PubMed Central 

    Google Scholar 
    101.Hao, W. & Golding, G. B. The fate of laterally transferred genes: life in the fast lane to adaptation or death. Genome Res. 16, 636–643 (2006).PubMed 
    PubMed Central 

    Google Scholar 
    102.Lerat, E., Daubin, V., Ochman, H. & Moran, N. A. Evolutionary origins of genomic repertoires in bacteria. 3, e130 (2005).103.Lobkovsky, A. E., Wolf, Y. I. & Koonin, E. V. Gene frequency distributions reject a neutral model of genome evolution. Genome Biol. Evol. 5, 233–242 (2013).PubMed 
    PubMed Central 

    Google Scholar 
    104.Sela, I., Wolf, Y. I. & Koonin, E. V. Theory of prokaryotic genome evolution. Proc. Natl Acad. Sci. USA 113, 11399–11407 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    105.Charlesworth, B. Effective population size and patterns of molecular evolution and variation. Nat. Rev. Genet. https://doi.org/10.1038/nrg2526 (2009).Article 
    PubMed 

    Google Scholar 
    106.Cohan, F. M. & Perry, E. B. A systematics for discovering the fundamental units of bacterial diversity. Curr. Biol. 17, 373–386 (2007).
    Google Scholar 
    107.Domingo-Sananes, M. R. & McInerney, J. O. Selection-based model of prokaryote pangenomes. bioRxiv https://doi.org/10.1101/782573 (2019).Article 

    Google Scholar 
    108.Azarian, T. et al. Frequency-dependent selection can forecast evolution in Streptococcus pneumoniae. PLoS Biol. 18, e3000878 (2020). The authors provide evidence that NFDS is a pervasive evolutionary force that shapes the accessory genome of S. pneumoniae.PubMed 
    PubMed Central 

    Google Scholar 
    109.Bobay, L. M., Touchon, M. & Rocha, E. P. C. Pervasive domestication of defective prophages by bacteria. Proc. Natl Acad. Sci. USA 111, 12127–12132 (2014). Although prophages can be considered parasitic, the authors show evidence of purifying selection within prophage genes, suggesting that they serve a beneficial purpose within their bacterial hosts.PubMed 
    PubMed Central 

    Google Scholar 
    110.Puigbò, P., Lobkovsky, A. E., Kristensen, D. M., Wolf, Y. I. & Koonin, E. V. Genomes in turmoil: quantification of genome dynamics in prokaryote supergenomes. BMC Med. 12, 1–19 (2014).
    Google Scholar 
    111.Lynch, M. Streamlining and simplification of microbial genome architecture. Annu.Rev.Microbiol. 60, 327–349 (2006).PubMed 

    Google Scholar 
    112.Bobay, L. & Ochman, H. Factors driving effective population size and pan-genome evolution in bacteria. BMC Evol. Biol. 18, 15 (2018).
    Google Scholar 
    113.Brito, I. L. et al. Mobile genes in the human microbiome are structured from global to individual scales. Nature 535, 435–439 (2016).PubMed 
    PubMed Central 

    Google Scholar 
    114.Evans, T. G. Considerations for the use of transcriptomics in identifying the ‘genes that matter’ for environmental adaptation. J. Exp. Biol. 218, 1925–1935 (2015).PubMed 

    Google Scholar 
    115.Cain, A. K. et al. A decade of advances in transposon-insertion sequencing. Nat. Rev. Genet. 21, 526–540 (2020).PubMed 

    Google Scholar 
    116.Wu, M. et al. Genetic determinants of in vivo fitness and diet responsiveness in multiple human gut Bacteroides. Science (80-.) 350, aac5992 (2015).
    Google Scholar 
    117.Poulsen, B. E. et al. Defining the core essential genome of Pseudomonas aeruginosa. Proc. Natl Acad. Sci. USA 116, 10072–10080 (2019).PubMed 
    PubMed Central 

    Google Scholar 
    118.Pál, C., Papp, B. & Lercher, M. J. Adaptive evolution of bacterial metabolic networks by horizontal gene transfer. Nat. Genet. 37, 1372–1375 (2005).PubMed 

    Google Scholar 
    119.Ansari, A. & Didelot, X. Inference of the properties of the recombination process from whole bacterial genomes. Genetics 196, 253–265 (2014).PubMed 

    Google Scholar 
    120.Lin, M. & Kussell, E. Inferring bacterial recombination rates from large-scale sequencing datasets. Nat. Methods 16, 199–204 (2019). The authors develop a fast and clever method that uses linkage information to estimate recombination rates and the diversity of the gene pool that has contributed alleles to the sample via HGT.PubMed 

    Google Scholar 
    121.Marttinen, P. et al. Detection of recombination events in bacterial genomes from large population samples. Nucleic Acids Res. 40, 1–12 (2012).
    Google Scholar 
    122.Didelot, X. & Wilson, D. J. ClonalFrameML: efficient inference of recombination in whole bacterial genomes. PLoS Comput. Biol. 11, 1–18 (2015).
    Google Scholar 
    123.Croucher, N. J. et al. Rapid phylogenetic analysis of large samples of recombinant bacterial whole genome sequences using Gubbins. https://doi.org/10.1371/journal.pcbi.1004041 (2015).124.Mostowy, R. et al. Efficient inference of recent and ancestral recombination within bacterial populations. Mol. Biol. Evol. 34, 1167–1182 (2017).PubMed 
    PubMed Central 

    Google Scholar 
    125.Yahara, K., Didelot, X., Ansari, M. A., Sheppard, S. K. & Falush, D. Efficient inference of recombination hot regions in bacterial genomes. Mol. Biol. Evol. 31, 1593–1605 (2014).PubMed 
    PubMed Central 

    Google Scholar 
    126.Daubin, V., Moran, N. A. & Ochman, H. Phylogenetics and the cohesion of bacterial genomes. Science 301, 829–832 (2003).PubMed 

    Google Scholar 
    127.Daubin, V. & Szollosi, G. Horizontal gene transfer and the tree of life. Cold Spring Harb. Perspect. Biol. https://doi.org/10.1007/978-94-007-2941-4_37 (2016).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    128.Bertelli, C., Tilley, K. E. & Brinkman, F. S. L. Microbial genomic island discovery, visualization and analysis. Brief. Bioinform. 20, 1685–1698 (2019).PubMed 

    Google Scholar 
    129.Rocha, E. P. C. et al. Comparisons of dN/dS are time dependent for closely related bacterial genomes. J. Theor. Biol. 239, 226–235 (2006).PubMed 

    Google Scholar 
    130.Kryazhimskiy, S. & Plotkin, J. B. The population genetics of dN/dS. PLoS Genet. https://doi.org/10.1371/journal.pgen.1000304 (2008).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    131.Charlesworth, B. & Charlesworth, D. Elements of Evolutionary Genetics (Roberts and Company Publishers, 2010).132.Castillo-Ramírez, S. et al. The impact of recombination on dN/dS within recently emerged bacterial clones. PLoS Pathog. https://doi.org/10.1371/journal.ppat.1002129 (2011).Article 
    PubMed 
    PubMed Central 

    Google Scholar 
    133.David, S. et al. Dynamics and impact of homologous recombination on the evolution of Legionella pneumophila. PLoS Genet. 13, 1–21 (2017).
    Google Scholar 
    134.Dillon, M., Thakur, S., Almeida, R. & Guttman, D. Recombination of ecologically and evolutionarily significant loci maintains genetic cohesion in the Pseudomonas syringae species complex. Genome Biol. https://doi.org/10.1101/227413 (2019).Article 
    PubMed 
    PubMed Central 

    Google Scholar  More

  • in

    The influence of rainfall and tillage on wheat yield parameters and weed population in monoculture versus rotation systems

    1.Navarra, A. & Tubiana, L. (eds) Regional Assessment of Climate Change in the Mediterranean, Advances in Global Change Research (Springer Netherlands, 2013). https://doi.org/10.1007/978-94-007-5772-1.Book 

    Google Scholar 
    2.Solomon, S. S. IPCC (2007): Climate Change the Physical Science Basis. AGUFM 2007, U43D-01 (2007).3.Seneviratne, S. et al. Changes in Climate Extremes and Their Impacts on the Natural Physical Environment: An Overview of the IPCC SREX report, Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC) (2012).4.Bates, B., Kundzewicz, Z. & Wu, S. Climate Change and Water. Intergovernmental Panel on Climate Change Secretariat (2008).5.Neve, P., Vila-Aiub, M. & Phytologist, F.R.-N. Evolutionary-thinking in agricultural weed management. New Phytol. 184(4), 783–793 (2009).Article 

    Google Scholar 
    6.Harrison, M. T., Cullen, B. R. & Rawnsley, R. P. Modelling the sensitivity of agricultural systems to climate change and extreme climatic events. Agric. Syst. https://doi.org/10.1016/j.agsy.2016.07.006 (2016).Article 

    Google Scholar 
    7.Moret, D., Arrúe, J. L., López, M. V. & Gracia, R. Winter barley performance under different cropping and tillage systems in semiarid Aragon (NE Spain). Eur. J. Agron. 26, 54–63. https://doi.org/10.1016/j.eja.2006.08.007 (2007).Article 

    Google Scholar 
    8.FAO (Food and Agriculture Organization). Rome: Introduction to Conservation Agriculture (Its Principles and Benefits). http://teca.fao.org/technology/introduction-conservationagriculture-its-principles-benefits (2013).9.Kertész, À. & Madarász, B. Conservation agriculture in Europe. Int. Soil Water Conserv. Res. 2(1), 91–96 (2014).Article 

    Google Scholar 
    10.Álvaro-Fuentes, J., López, M. V., Cantero-Martínez, C. & Arrúe, J. L. Tillage effects on soil organic carbon fractions in Mediterranean dryland agroecosystems. Soil Sci. Soc. Am. J. 72, 541–547 (2008).ADS 
    Article 

    Google Scholar 
    11.Bouchery, Y., Ghaffari, A., Jemai, Z. & Dallery, Y. Including sustainability criteria into inventory models. Eur. J. Oper. Res. 222, 229–240 (2012).MathSciNet 
    Article 

    Google Scholar 
    12.Soane, B. D. et al. No-till in northern, western and south-western Europe: A review of problems and opportunities for crop production and the environment. Soil Tillage Res. 118, 66–87 (2012).Article 

    Google Scholar 
    13.Madejón, E. et al. Effect of long-term conservation tillage on soil biochemical properties in Mediterranean Spanish areas. Soil Tillage Res. 105, 55–62 (2009).Article 

    Google Scholar 
    14.De Vita, P., Di Paolo, E., Fecondo, G., Di Fonzo, N. & Pisante, M. No-tillage and conventional tillage effects on durum wheat yield, grain quality and soil moisture content in southern Italy. Soil Tillage Res. 92, 69–78. https://doi.org/10.1016/j.still.2006.01.012 (2007).Article 

    Google Scholar 
    15.Giambalvo, D. et al. Faba bean grain yield, N2 fixation, and weed infestation in a long-term tillage experiment under rainfed Mediterranean conditions. Plant Soil 360, 215–227. https://doi.org/10.1007/s11104-012-1224-5 (2012).CAS 
    Article 

    Google Scholar 
    16.Ruisi, P. et al. Conservation tillage in a semiarid Mediterranean environment: Results of 20 years of research. Ital. J. Agron. 9(560), 1–7. https://doi.org/10.4081/ija.2014.560 (2014).Article 

    Google Scholar 
    17.Plaza-Bonilla, D., Cantero-Martínez, C., Viñas, P. & Álvaro-Fuentes, J. Soil aggregation and organic carbon protection in a no-tillage chronosequence under Mediterranean conditions. Geoderma 193–194, 76–82 (2013).ADS 
    Article 

    Google Scholar 
    18.Barberi, P. & Lo Cascio, B. Long-term tillage and crop rotation effects on weed seed bank size and composition. Weed Res. 41(4), 325–340. https://doi.org/10.1046/j.1365-3180.2001.00241.x (2001).Article 

    Google Scholar 
    19.Batey, T. & McKenzie, D. C. Soil compaction: Identification directly in the field. Soil Use Manag. 22, 123–131. https://doi.org/10.1111/j.1475-2743.2006.00017.x (2006).Article 

    Google Scholar 
    20.Lampurlanés, J., Plaza-Bonilla, D., Álvaro-Fuentes, J. & Cantero-Martínez, C. Long-term analysis of soil water conservation and crop yield under different tillage systems in Mediterranean rainfed conditions. Field Crops Res. 198, 59–67. https://doi.org/10.1016/j.fcr.2016.02.010 (2016).Article 

    Google Scholar 
    21.Ruisi, P. et al. Weed seedbank size and composition in a long-term tillage and crop sequence experiment. Weed Res. 55, 320–328. https://doi.org/10.1111/wre.12142 (2015).Article 

    Google Scholar 
    22.Mahli, S. S. & Lemke, R. Tillage, crop residue and N fertilizer effects on crop yield, nutrient uptake, soil quality and nitrous oxide gasemissions in a second 4-yr rotation cycle. Soil Tillage Res. 96, 269–283. https://doi.org/10.1016/j.still.2007.06.011 (2007).Article 

    Google Scholar 
    23.Santín-Montanyá, M. I., Gandía, M. L., Zambrana, E. & Tenorio, J. L. Effects of tillage systems on wheat and weed water relationships over time when growing together, in semiarid conditions. Ann. Appl. Biol. 177, 256–265. https://doi.org/10.1111/aab.12620 (2020).Article 

    Google Scholar 
    24.Chaghazardi, H. R., Jahansouz, M. R., Ahmadi, A. & Gorji, M. Effects of tillage management on productivity of wheat and chickpea under cold, rainfed conditions in western Iran. Soil Tillage Res. 162, 26–33. https://doi.org/10.1016/j.still.2016.04.010 (2016).Article 

    Google Scholar 
    25.López-Bellido, L., Fuentes, M., Castillo, J. E., López-Garrido, F. J. & Fernández, E. J. Long-term tillage, crop rotation, and nitrogen fertiliser effects on wheat yield under rainfed Mediterranean conditions. Agron. J. 88, 783–791 (1996).Article 

    Google Scholar 
    26.Cantero-Martínez, C., Angás, P. & Lampurlanés, J. Long-term yield and water use efficiency under various tillage systems in Mediterranean rainfed conditions. Ann. Appl. Biol. 150, 293–305. https://doi.org/10.1111/j.1744-7348.2007.00142.x (2007).Article 

    Google Scholar 
    27.Campiglia, E., Mancinelli, R., De Stefanis, E., Pucciarmati, S. & Radicetti, E. The long-term effects of conventional and organic ropping systems, tillage managements and weather conditions on yield and grain quality of durum wheat (Triticum durum Desf.) in the Mediterranean environment of central Italy. Field Crops Res. 176, 34–44. https://doi.org/10.1016/j.fcr.2015.02.021 (2015).Article 

    Google Scholar 
    28.Bennett, A. J., Bending, G. D., Chandler, D., Hilton, S. & Mills, P. Meeting the demand for crop production: The challenge of yield decline in crops grown in short rotations. Biol. Rev. 87, 52–71 (2012).Article 

    Google Scholar 
    29.Plourde, J. D., Pijanowski, B. C. & Pekin, B. K. Evidence for increased monoculture cropping in the Central United States. Agric. Ecosyst. Environ. 165, 50–59 (2013).Article 

    Google Scholar 
    30.Seymour, M., Kirkegaard, J. A., Peoples, M. B., White, P. F. & French, R. J. Break-crop benefits to wheat in Western Australia—Insights from over three decades of research. Crop Pasture Sci. 63, 1 (2012).Article 

    Google Scholar 
    31.Wang, H. & Ortiz-Bobea, A. Market-driven corn monocropping in the U.S. Midwest. Agric. Resour. Econ. Rev. 48, 274–296 (2019).Article 

    Google Scholar 
    32.Tekin, S., Yazar, A. & Barut, H. Comparison of wheat-based rotation systems vs monocropping under dryland Mediterranean conditions. Int. J. Agric. Biol. Eng. 10, 203–213. https://doi.org/10.25165/j.ijabe.20171005.3443 (2017).Article 

    Google Scholar 
    33.Ryan, J., Singh, M. & Pala, M. Long-term cereal-based rotation trials in the Mediterranean region: Implications for cropping sustainability. Adv. Agron. 97, 273–319. https://doi.org/10.1016/S0065-2113(07)00007-7 (2008).CAS 
    Article 

    Google Scholar 
    34.Bowles, T. M. et al. Long-term evidence shows that crop-rotation diversification increases agricultural resilience to adverse growing conditions in North America. One Earth 2, 284–293 (2020).Article 

    Google Scholar 
    35.Marini, L. et al. Crop rotations sustain cereal yields under a changing climate. Environ. Res. Lett. 15(12), 124011 (2020).Article 

    Google Scholar 
    36.Renard, D. & Tilman, D. National food production stabilized by crop diversity. Nature 571, 257–260 (2019).ADS 
    CAS 
    Article 

    Google Scholar 
    37.Amato, G. et al. Long-term tillage and crop sequence effects on wheat grain yield and quality. Agron. J. 105, 1317–1327 (2013).Article 

    Google Scholar 
    38.Loke, P. F., Kotzé, E. & Du Preez, C. C. Impact of long-term wheat production management practices on soil acidity, phosphorus and some micronutrients in a semi-arid Plinthosol. Soil Res. 51, 415–426. https://doi.org/10.1071/SR12359 (2013).CAS 
    Article 

    Google Scholar 
    39.Martin-Rueda, I. et al. Tillage and crop rotation effects on barley yield and soil nutrients on a Calciortidic Haploxeralf. Soil Tillage Res. 92, 1–9 (2007).Article 

    Google Scholar 
    40.Hadjichristodoulou, A. The relationship of grain yield with harvest index and total biological yield of barley in drylands. Tech. Bull. 126, 1–10 (1991).
    Google Scholar 
    41.Zimdahl, R. L. Weed-Crop Competition: A Review 49–50, 109–145 (Blackwell Publishing, 2004).42.Nkoa, R., Owen, M. D. K. & Swanton, C. J. Weed abundance, distribution, diversity, and community analyses. Weed Sci. 63, 64–90. https://doi.org/10.1614/ws-d-13-00075.1 (2015).Article 

    Google Scholar 
    43.Ter Braak, C. J. F. Canonical correspondence analysis: A new eigenvector technique for multivariate direct gradient analysis. Ecology 67, 1167–1179 (1986).Article 

    Google Scholar 
    44.Fried, G., Petit, S. & Reboud, X. A specialist-generalist classification of the arable flora and its response to changes in agricultural practices. BMC Ecol. 10, 20 (2010).Article 

    Google Scholar 
    45.Korres, N. E. et al. Cultivars to face climate change effects on crops and weeds: A review. Agron. Sustain. Dev. 36, 1–22. https://doi.org/10.1007/s13593-016-0350-5 (2016).Article 

    Google Scholar 
    46.Acevedo, E. H., Silva, P. C., Silva, H. R. & Solar, B. R. Wheat production in Mediterranean environments. In Wheat: Ecology and Physiology of Yield Determination 295–331 (1999).47.Ramesh, K., Matloob, A., Aslam, F., Florentine, S. K. & Chauhan, B. S. Weeds in a changing climate: Vulnerabilities, consequences, and implications for future weed management. Front. Plant Sci. 8, 1–12. https://doi.org/10.3389/fpls.2017.00095 (2017).CAS 
    Article 

    Google Scholar 
    48.Calzarano, F. et al. Durum wheat quality, yield and sanitary status under conservation agriculture. Agriculture https://doi.org/10.3390/agriculture8090140 (2018).Article 

    Google Scholar 
    49.Santín-Montanyá, M. I., Fernández-Getino, A. P., Zambrana, E. & Tenorio, J. L. Effects of tillage on winter wheat production in Mediterranean dryland fields. Arid Land Res. Manag. 31(3), 269–282. https://doi.org/10.1080/15324982.2017.1307289 (2017).Article 

    Google Scholar 
    50.Shimshi, D., Bielorai, H. & Mantell, A. Irrigation of field crops. In Arid Zone Irrigation 369–381 (Springer, 1973).51.Schultz, J. E. Crop production in a rotation trial at Tarlee, South Australia. Aust. J. Exp. Agric. 35, 865–876. https://doi.org/10.1071/EA9950865 (1995).Article 

    Google Scholar 
    52.Alarcón, R. et al. Effects of no-tillage and non-inversion tillage on weed community diversity and crop yield over nine years in a Mediterranean cereal-legume cropland. Soil Tillage Res. 179, 54–62. https://doi.org/10.1016/j.still.2018.01.014 (2018).Article 

    Google Scholar 
    53.Šíp, V., Vavera, R., Chrpová, J., Kusá, H. & Růžek, P. Winter wheat yield and quality related to tillage practice, input level and environmental conditions. Soil Tillage Res. 132, 77–85. https://doi.org/10.1016/j.still.2013.05.002 (2013).Article 

    Google Scholar 
    54.Woźniak, A. Effect of cereal monoculture and tillage systems on grain yield and weed infestation of winter durum wheat. Int. J. Plant Prod. 14, 1–8. https://doi.org/10.1007/s42106-019-00062-8 (2020).Article 

    Google Scholar 
    55.Schulte, B. J., Tomasek, B. J., Davis, A. S., Andersson, L. & Benoit, D. L. An investigation to enhance understanding of the stimulation of weed seedling emergence by soil disturbance. Weed Res. 54, 1–12. https://doi.org/10.1111/wre.12054 (2014).Article 

    Google Scholar 
    56.Calado, J. M. G., Basch, G. & de Carvalho, M. Weed emergence as influenced by soil moisture and air temperature. J. Pest Sci. 82, 81–88. https://doi.org/10.1007/s10340-008-0225-x (2009).Article 

    Google Scholar 
    57.Siddique, K. H. M. et al. Innovations in agronomy for food legumes. A review. Agron. Sustain. Dev. 32, 45–64 (2012).Article 

    Google Scholar 
    58.Payne, W. A., Rasmussen, P. E., Chen, C. & Ramig, R. E. Assessing simple wheat and pea models using data from a long-term tillage experiment. Agron. J. 93, 250–260. https://doi.org/10.2134/agronj2001.931250x (2001).Article 

    Google Scholar 
    59.Machado, S., Petrie, S., Rhinhart, K. & Ramig, R. E. Tillage effects on water use and grain yield of winter wheat and green pea in rotation. Agron. J. 100, 154–162. https://doi.org/10.2134/agrojnl2006.0218 (2008).Article 

    Google Scholar 
    60.Copec, K., Filipovic, D., Husnjak, S., Kovacev, I. & Kosustic, S. Effects of tillage systems on soil water content and yield in maize and winter wheat production. Plant Soil Environ. 61(5), 213–219. https://doi.org/10.17221/156/2015-pse (2015).Article 

    Google Scholar 
    61.López-Bellido, L., López-Bellido, R. J., Redondo, R. & Benítez, J. Faba bean nitrogen fixation in a wheat-based rotation under rainfed Mediterranean conditions: Effect of tillage system. Field Crop Res. 98, 253–260 (2006).Article 

    Google Scholar 
    62.López-Bellido, R. J., López-Bellido, L., Benítez-Vega, J. & López-Bellido, F. J. Tillage system, preceding crop, and nitrogen fertilizer in wheat crop: I. Soil water content. Agron. J. 99, 59–65. https://doi.org/10.2134/agronj2006.0025 (2007).Article 

    Google Scholar 
    63.López-Bellido, L., Muñoz-Romero, V., Fernández-García, P. & López-Bellido, R. J. Ammonium accumulation in soil: The long-term effects of tillage, rotation and N rate in a Mediterranean vertisol. Soil Use Manag. 30(4), 471–479 (2014).Article 

    Google Scholar 
    64.Bilalis, D., Efthimiadis, P. & Sidiras, N. Effect of three tillage systems on weed flora in a 3-year rotation with four crops. J. Agron. Crop Sci. 186, 135–141. https://doi.org/10.1046/j.1439-037X.2001.00458.x (2001).Article 

    Google Scholar 
    65.Feledyn-Szewczyk, B., Smagacz, J., Kwiatkowski, C. A., Harasim, E. & Woźniak, A. Weed flora and soil seed bank composition as affected by tillage system in three-year crop rotation. Agriculture https://doi.org/10.3390/agriculture10050186 (2020).Article 

    Google Scholar 
    66.Pala, M., Ryan, J., Zhang, H., Singh, M. & Harris, H. C. Water-use efficiency of wheat-based rotation systems in a Mediterranean environment. Agric. Water Manag. 93, 136–144. https://doi.org/10.1016/j.agwat.2007.07.001 (2007).Article 

    Google Scholar 
    67.Légère, A., Stevenson, F. C. & Benoit, D. L. Diversity and assembly of weed communities: Contrasting responses across cropping systems. Weed Res. 45, 303–315. https://doi.org/10.1111/j.1365-3180.2005.00459.x (2005).Article 

    Google Scholar 
    68.Sans, F. X., Berner, A., Armengot, L. & Mäder, P. Tillage effects on weed communities in an organic winter wheat-sunflower-spelt cropping sequence. Weed Res. 51, 413–421. https://doi.org/10.1111/j.1365-3180.2011.00859.x (2011).Article 

    Google Scholar 
    69.Sarani, M., Oveisi, M., Mashhadi, H. R., Alizade, H. & Gonzalez-Andujar, J. L. Interactions between the tillage system and crop rotation on the crop yield and weed populations under arid conditions. Weed Biol. Manag. 14, 198–208. https://doi.org/10.1111/wbm.12047 (2014).Article 

    Google Scholar 
    70.Pardo, G. et al. Effects of reduced and conventional tillage on weed communities: Results of a long-term experiment in Southwestern Spain. Planta Daninha https://doi.org/10.1590/s0100-83582019370100152 (2019).Article 

    Google Scholar 
    71.Fennimore, S. A. & Jackson, L. E. Organic amendment and tillage effects on vegetable field weed emergence and seedbanks 1. Weed Technol. 17, 42–50. https://doi.org/10.1614/0890-037x(2003)017[0042:oaateo]2.0.co;2 (2003).Article 

    Google Scholar 
    72.Francis, A. & Warwick, S. I. The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated). Can. J. Plant Sci. 88, 379–401. https://doi.org/10.4141/CJPS07100 (2008).Article 

    Google Scholar  More

  • in

    High species richness of tachinid parasitoids (Diptera: Calyptratae) sampled with a Malaise trap in Baihua Mountain Reserve, Beijing, China

    1.Wilson, E. O. The little things that run the world (The importance and conservation of invertebrates). Conserv. Biol. 1, 344–346 (1987).
    Google Scholar 
    2.Stork, N. E. How many species are there?. Biodivers. Conserv. 2, 215–232 (1993).
    Google Scholar 
    3.Erwin, T. L. Tropical forests: Their richness in Coleoptera and other arthropod species. Coleopts. Bull. 36, 74–75 (1982).
    Google Scholar 
    4.Novotny, V. et al. Low host specificity of herbivorous insects in a tropical forest. Nature 416, 841–844 (2002).CAS 
    PubMed 
    ADS 

    Google Scholar 
    5.Stork, N. E. How many species of insects and other terrestrial arthropods are there on earth?. Annu. Rev. Entomol. 63, 31–45 (2018).CAS 
    PubMed 

    Google Scholar 
    6.Linnaeus, C. Amoenitates Academicae, seu Dissertationes Variae Physicae, Medicae, Botanicae, Volume 2. (Laurentium Salvium, 1749).7.Linnaeus, C. Systema Naturae per Regna tria Naturae, Secundum Classes, Ordines, Genera, Species cum Characteribus, Differentiis, Synonymis, Locis. (Laurentium Salvium, 1758).8.Metcalf, Z. P. How many insects are there in the world?. Entomol. News 51, 219–222 (1940).
    Google Scholar 
    9.Ødegaard, F. The relative importance of trees versus lianas as hosts for phytophagous beetles (Coleoptera) in tropical forests. J. Biogeogr. 27, 283–296 (2000).
    Google Scholar 
    10.Geiger, M. F. et al. The global Malaise trap program–how well does the current barcode reference library identify flying insects in Germany? Biodivers. Data J. 4, e10671 (2016).11.D’Souza, M. L. & Hebert, P. D. N. Stable baselines of temporal turnover underlie high beta diversity in tropical arthropod communities. Mol. Ecol. 27, 2447–2460 (2018).PubMed 

    Google Scholar 
    12.Srivathsan, A. et al. Rapid, large-scale species discovery in hyperdiverse taxa using 1D MinION sequencing. Bmc. Biol. 17, 96 (2019).CAS 
    PubMed 
    PubMed Central 

    Google Scholar 
    13.Wu, Y. et al. Explaining the species richness of birds along a subtropical elevational gradient in the Hengduan Mountains. J. Biogeogr. 40, 2310–2323 (2013).
    Google Scholar 
    14.Morelli, F. et al. Taxonomic diversity, functional diversity and evolutionary uniqueness in bird communities of Beijing’s urban parks: Effects of land use and vegetation structure. Urban For. Urban Green. 23, 84–92 (2017).
    Google Scholar 
    15.White, E. P. Spatiotemporal scaling of species richness: Patterns, processes and implications. In Scaling biodiversity (eds Storch, D. et al.) 325–346 (Cambridge University Press, 2007).
    Google Scholar 
    16.Schwartz, M. D. Phenology: An Integrative Environmental Science. (Springer, 2013).17.Brehm, G., Colwell, R. K. & Kluge, J. The role of environment and mid-domain effect on moth species richness along a tropical elevational gradient. Glob. Ecol. Biogeogr. 16, 205–219 (2007).
    Google Scholar 
    18.Sundqvist, M. K., Sanders, N. J. & Wardle, D. A. Community and ecosystem responses to elevational gradients: Processes, mechanisms, and insights for global change. Annu. Rev. Ecol. Evol. Syst. 44, 261–280 (2013).
    Google Scholar 
    19.Le, C. M., Wilson, S. W. & Soulier-Perkins, A. Elevational gradient of Hemiptera (Heteroptera, Auchenorrhyncha) on a tropical mountain in Papua New Guinea. PeerJ 3, e978 (2015).
    Google Scholar 
    20.McCravy, K. W. A review of sampling and monitoring methods for beneficial arthropods in agroecosystems. Insects 9, 170 (2018).PubMed Central 

    Google Scholar 
    21.Karlsson, D. et al. The Swedish Malaise trap project: A 15 year retrospective on a countrywide insect inventory. Biodivers. Data J. 8, e47255 (2020).PubMed 
    PubMed Central 

    Google Scholar 
    22.Borkent, A. et al. Remarkable fly (Diptera) diversity in a patch of Costa Rican cloud forest: Why inventory is a vital science. Zootaxa 4402, 53–90 (2018).PubMed 

    Google Scholar 
    23.Fraser, S. E. M., Dytham, C. & Mayhew, P. J. The effectiveness and optimal use of Malaise traps for monitoring parasitoid wasps. Insect Conserv. Divers. 1, 22–31 (2008).
    Google Scholar 
    24.Gaston, K. J., Gauld, I. D. & Hanson, P. The size and composition of the hymenopteran fauna of Costa Rica. J. Biogeogr. 23, 105–113 (1996).
    Google Scholar 
    25.Townes, H. K. Design of a Malaise trap. Proc. Entomol. Soc. Wash. 64, 253–262 (1962).
    Google Scholar 
    26.O’Hara, J. E. History of tachinid classification (Diptera, Tachinidae). ZooKeys 316, 1–34 (2013).
    Google Scholar 
    27.O’Hara, J. E., Henderson, S. J. & Wood, D. M. Preliminary Checklist of the Tachinidae of the World. Version 2.1. http://www.nadsdiptera.org/Tach/WorldTachs/Checklist/Worldchecklist.html (2020).28.Stireman, J. O., O’Hara, J. E. & Wood, D. M. Tachinidae: Evolution, behavior, and ecology. Annu. Rev. Entomol. 51, 525–555 (2006).CAS 
    PubMed 

    Google Scholar 
    29.Cerretti, P. et al. Signal through the noise? Phylogeny of the Tachinidae (Diptera) as inferred from morphological evidence. Syst. Entomol. 39, 335–353 (2014).
    Google Scholar 
    30.Stireman, J. O., Dyer, L. A. & Greeney, H. F. Specialised generalists? Food web structure of a tropical tachinid-caterpillar community. Insect Conserv. Diver. 10, 367–384 (2017).
    Google Scholar 
    31.Belshaw, R. Tachinid (Diptera) assemblages in habitats of a secondary succession in southern Britain. Entomology 111, 151–161 (1992).
    Google Scholar 
    32.Inclán, D. J. & Stireman, J. O. Tachinid (Diptera: Tachinidae) Parasitoid diversity and temporal abundance at a single site in the northeastern United States. Ann. Entomol. Soc. Am. 104, 287–296 (2011).
    Google Scholar 
    33.Cerretti, P., Whitmore, D., Mason, F. & Taglianti, A. V. Survey on the spatio-temporal distribution of tachinid flies: Using Malaise traps (Diptera, Tachinidae). In Invertebrati diuna foresta della Pianura Padana, Bosco della Fontana, Secondo contributo (eds Cerretti, P. et al.) 229–256 (Springer, 2004).34.Stireman, J. O. Alpha and beta diversity of a tachinid parasitoid community. Ann. Entomol. Soc. Am. 101, 362–370 (2008).
    Google Scholar 
    35.Pei, W. Y. et al. Species diversity of Tachinidae in Baihuashan National Nature Reserve of Beijing, China. J. Environ. Entomol. 41, 1218–1225 (2019).
    Google Scholar 
    36.Zhao, Y. et al. Fauna resource investigation of Tachinidae (Diptera) from Mt. Huangyi, Eastern Liaoning, China. J. Environ. Entomol. 41, 1208–1217 (2019).
    Google Scholar 
    37.Zhang, Y. Z. et al. Fauna resource investigation of Tachinidae (Diptera) from the grasslands, Inner Mongolia of China. J. Environ. Entomol. 40, 1353–1363 (2018).
    Google Scholar 
    38.Zhang, C. T. et al. Preliminary investigation on Tachinidae (Diptera) of Hanma National Nature Reserve, Inner Mongolia, China. J. Environ. Entomol. 35, 257–264 (2017).CAS 

    Google Scholar 
    39.Liang, H. C. et al. Fauna resource of Tachinidae in Liaoning Hun River Source Nature Reserve of China. J. Environ. Entomol. 38, 1214–1223 (2016).
    Google Scholar 
    40.Zhang, C. T. et al. Faunistic investigation of Tachinidae in Liaoning Bailang Mountain National Nature Reserve of China. J. Environ. Entomol. 37, 726–734 (2015).
    Google Scholar 
    41.Zhang, D. et al. Study on Tachinidae fauna in Songshan National Nature Reserve of Beijing, China. Chin. J. Vector Biol. Control 22, 459–465 (2011).
    Google Scholar 
    42.Herting, B. & Dely-Draskovits, A. Family Tachinidae. In Catalogue of Palaearctic Diptera. Volume 13. Anthomyiidae–Tachinidae. (eds Soós, A. & Papp, L.) 118–458 (Hungarian Natural History Museum, 1993).43.O’Hara, J. E. & Henderson, S. J. World Genera of the Tachinidae (Diptera) and Their Regional Occurrence. Version 11.0. http://www.nadsdiptera.org/Tach/WorldTachs/Genera/Worldgenera.html (2020).44.Tschorsnig, H. P. & Richter, V. A. Family Tachinidae. In Contributions to a Manual of Palaearctic Diptera (with special reference to flies of economic importance) (eds Papp, L. & Darvas, B) 691–827 (Higher Brachycera Science Herald Press, 1998).45.Cerretti, P., Tschorsnig, H. P., Lopresti, M. & Giovanni, F. D. MOSCHweb: A matrix-based interactive key to the genera of the Palaearctic Tachinidae (Insecta, Diptera). ZooKeys 205, 5–18 (2012).
    Google Scholar 
    46.Andersen, S. Revision of European species of Phytomyptera Rondani (Diptera: Tachinidae). Insect Syst. Evol. 19, 43–80 (1988).
    Google Scholar 
    47.Andersen, S. The Siphonini (Diptera: Tachinidae) of Europe. Fauna Entomol. Scand. 33, 1–146 (1996).
    Google Scholar 
    48.Chao, C. M. et al. Tachinidae. In Flies of China Vol. 2 (eds Xue, W. Q. & Chao, C. M.) (Liaoning Science and Technology Press, 1998).
    Google Scholar 
    49.Chao, C. M. et al. Fauna Sinica. Insecta. Vol. 23. Diptera. Tachinidae (1) (Science Press, 2001).
    Google Scholar 
    50.O’Hara, J. E., Shima, H. & Zhang, C. T. Annotated catalogue of the Tachinidae (Insecta: Diptera) of China. Zootaxa 2190, 1–236 (2009).
    Google Scholar 
    51.Tachi, T. & Shima, H. Systematic study of the genus Peribaea Robineau-Desvoidy of East Asia (Diptera: Tachinidae). Tijdschr. voor Entomol. 145, 115–144 (2002).
    Google Scholar 
    52.Tschorsnig, H. P. Preliminary Host Catalogue of Palaearctic Tachinidae (Diptera). http://www.nadsdiptera.org/Tach/WorldTachs/CatPalHosts/Home.html (2017).53.Zhang, C. T., Shima, H. & Chen, X. L. A review of the genus Dexia Meigen in the Palearctic and Oriental Regions (Diptera: Tachinidae). Zootaxa 2705, 1–81 (2010).
    Google Scholar 
    54.Colwell, R. K. Estimates: Statistical Estimation of Species Richness and Shared Species from Samples. Version 9.1.0. http://viceroy.eeb.uconn.edu/estimates/ (2019).55.Oksanen, J. F. et al. Vegan: Community Ecology Package. R Package Version 2.4-3. https://CRAN.R-project.org/package=vegan. Accessed 20 May 2018 (2017).56.Mielke, P. W. 34 Meteorological applications of permutation techniques based on distance functions. Handb. Stat. 4, 813–830 (1984).
    Google Scholar 
    57.Ge, Y. et al. Exotic spartina alterniflora invasion changes temporal dynamics and composition of spider community in a salt marsh of Yangtze Estuary, China. Estuar. Coast. Shelf. Sci. 239, 106755 (2020).
    Google Scholar 
    58.Haq, F. et al. Multivariate approach to the classification and ordination of the forest ecosystem of Nandiar valley western Himalayas. Ecol. Indic. 80, 232–241 (2017).
    Google Scholar 
    59.Oara, J. E., Zhang, C. T. & Shima, H. Catalogue of the Tachinidae (Insecta: Diptera) of China. In Catalogue of Life China: 2021 Annual Checklist, Volume 2 Animals, Insect (VI), Diptera (3) (eds Yang, D. et al.) 845–1170 (The Biodiversity Committee of Chinese Academy of Sciences, 2021).60.McCain, C. M. & Grytnes, J. A. Elevational gradients in species richness. In Encyclopedia of Life Sciences (eds Wiley, J. & Ltd, S.) 1–10 (Wiley, 2010).
    Google Scholar 
    61.Zhang, J. T., Xu, B. & Li, M. Vegetation patterns and species diversity along elevational and disturbance gradients in the Baihua Mountain Reserve, Beijing, China. Mt. Res. Dev. 33, 170–178 (2013).ADS 

    Google Scholar 
    62.Huang, Y. et al. The effects of habitat area, vegetation structure and insect richness on breeding bird populations in Beijing urban parks. Urban For. Urban Green. 14, 1027–1039 (2015).
    Google Scholar 
    63.Eldegard, K., Totland, Ø. & Moe, S. R. Edge effects on plant communities along power line clearings. J. Appl. Ecol. 52, 871–880 (2015).
    Google Scholar 
    64.Fahrig, L. Effects of habitat fragmentation on biodiversity. Annu. Rev. Ecol. Evol. Syst. 34, 487–515 (2003).
    Google Scholar 
    65.Harper, K. A. et al. Edge influence on forest structure and composition in fragmented landscapes. Conserv. Biol. 19, 768–782 (2005).
    Google Scholar 
    66.Laurance, W. F. et al. Habitat fragmentation, variable edge effects, and the landscape-divergence hypothesis. PLoS ONE 2, e1017 (2007).67.Stireman, J. O. III., Cerretti, P., Whitmore, D., Hardersen, S. & Gianelle, D. Composition and stratification of a tachinid (Diptera: Tachinidae) parasitoid community in a European temperate plain forest. Insect Conserv. Divers. 5, 346–357 (2012).
    Google Scholar 
    68.Burington, Z. L. et al. Latitudinal patterns in tachinid parasitoid diversity (Diptera: Tachinidae): A review of the evidence. Insect Conserv. Divers. 13, 419–431 (2020).
    Google Scholar 
    69.Campbell, J. W., Hanula, J. L. & Waldrop, T. A. Effects of prescribed fire and fire surrogates on floral visiting insects of the blue ridge province in North Carolina. Biol. Conserv. 134, 393–404 (2007).
    Google Scholar 
    70.Alfred, D. J. et al. A study on five sampling methods of parasitic hymenopterans in rice ecosystem. Biol. Control. 32, 187–192 (2018).
    Google Scholar 
    71.Wells, W. & Decker, T. A comparison of three types of insect traps for collecting non-Formicidae Hymenoptera on the Island of Dominica. Southwest. Entomol. 31, 59–68 (2006).
    Google Scholar  More