Brown, J. H. Why are there so many species in the tropics? J. Biogeogr. 41, 8–22 (2014).
Classen, A. et al. Temperature versus resource constraints: Which factors determine bee diversity on Mount Kilimanjaro, Tanzania? Glob. Ecol. Biogeogr. 24, 642–652 (2015).
Rahbek, C. et al. Humboldt’s enigma: What causes global patterns of mountain biodiversity? Science 365, 1108–1113 (2019).
Toranza, C. & Arim, M. Cross-taxon congruence and environmental conditions. BMC Ecol. 10, 18 (2010).
Gioria, M., Bacaro, G. & Feehan, J. Evaluating and interpreting cross-taxon congruence: Potential pitfalls and solutions. Acta Oecol. 37, 187–194 (2011).
Graham, C. H. et al. The origin and maintenance of montane diversity: Integrating evolutionary and ecological processes. Ecography (Cop.) 37, 711–719 (2014).
Westgate, M. J., Tulloch, A. I. T., Barton, P. S., Pierson, J. C. & Lindenmayer, D. B. Optimal taxonomic groups for biodiversity assessment: A meta-analytic approach. Ecography (Cop.) 40, 539–548 (2017).
Lomolino, M. V. Elevation gradients of species-density: Historical and prospective views. Glob. Ecol. Biogeogr. 8, 1–2 (2001).
McCain, C. M. Global analysis of bird elevational diversity. Glob. Ecol. Biogeogr. 18, 346–360 (2009).
Peters, M. K. et al. Predictors of elevational biodiversity gradients change from single taxa to the multi-taxa community level. Nat. Commun. 7, 13736 (2016).
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).
Ruggiero, A. & Hawkins, B. A. Why do mountains support so many species of birds? Ecography (Cop.) 31, 306–315 (2008).
Mccain, C. M. & Colwell, R. K. Assessing the threat to montane biodiversity from discordant shifts in temperature and precipitation in a changing climate. Ecol. Lett. 14, 1236–1245 (2011).
Hawkins, B. A. et al. Energy, water, and broad-scale geographic patterns of species richness. Ecology 84, 3105–3117 (2003).
Currie, D. J. Energy and large-scale patterns of animal and plant species richness. Am. Nat. 137, 27–49 (1991).
Stein, A., Gerstner, K. & Kreft, H. Environmental heterogeneity as a universal driver of species richness across taxa, biomes and spatial scales. Ecol. Lett. 17, 866–880 (2014).
Costanza, J. K., Moody, A. & Peet, R. K. Multi-scale environmental heterogeneity as a predictor of plant species richness. Landsc. Ecol. 26, 851–864 (2011).
Vetaas, O. R., Paudel, K. P. & Christensen, M. Principal factors controlling biodiversity along an elevation gradient: Water, energy and their interaction. J. Biogeogr. https://doi.org/10.1111/jbi.13564 (2019).
Lande, R. Risks of population extinction from demographic and environmental stochasticity and random catastrophes. Am. Nat. 142, 911–927 (1993).
Kaspari, M., Alonso, L. & O’Donnell, S. Three energy variables predict ant abundance at a geographical scale. Proc. R. Soc. B Biol. Sci. 267, 485–489 (2000).
Pianka, E. R. Latitudinal gradients in species diversity: A review of concepts. Am. Nat. 100, 33–46 (1966).
Werenkraut, V. & Ruggiero, A. The richness and abundance of epigaeic mountain beetles in north-western Patagonia, Argentina: Assessment of patterns and environmental correlates. J. Biogeogr. 41, 561–573 (2014).
R Core Team. R version 3.6.2 ‘Dark and Stormy Night’ (2019). (Accessed 12 December 2019). https://www.r-project.org.
Blanchet, F. G., Cazelles, K. & Gravel, D. Co-occurrence is not evidence of ecological interactions. Ecol. Lett. 23, 1050–1063 (2020).
Hodkinson, I. D. Terrestrial insects along elevation gradients: Species and community responses to altitude. Biol. Rev. 80, 489–513 (2005).
Kampmann, D. et al. Mountain grassland biodiversity: Impact of site conditions versus management type. J. Nat. Conserv. 16, 12–25 (2008).
Janzen, D. H. et al. Changes in the arthropod community along an elevational transect in the Venezuelan Andes. Biotropica 8, 193–203 (1976).
Sirin, D., Eren, O. & Ciplak, B. Grasshopper diversity and abundance in relation to elevation and vegetation from a snapshot in Mediterranean Anatolia: Role of latitudinal position in altitudinal differences. J. Nat. Hist. 44, 1343–1363 (2010).
Alexander, G. & Hilliard, J. R. Altitudinal and seasonal distribution of Orthoptera in the Rocky Mountains of northern Colorado. Ecol. Monogr. 39, 385–432 (1969).
Mojica, A. S. & Fagua, G. Estructura de las comunidades de orthoptera (insecta) en un gradiente altitudinal de un bosque andino. Rev. Colomb. Entomol. 32, 200–213 (2006).
Grytnes, J. A. Species-richness patterns of vascular plants along seven altitudinal transects in Norway. Ecography (Cop.) 26, 291–300 (2003).
McCain, C. M. & Grytnes, J.-A. Elevational gradients in species richness. Encyl. Life Sci. https://doi.org/10.1002/9780470015902.a0022548 (2010).
Xu, X. et al. Altitudinal patterns of plant species richness in the Honghe region of China. Pak. J. Bot. 49, 1039–1048 (2017).
Kerr, J. T. & Packer, L. Habitat heterogeneity as a determinant of mammal species richness in high-energy regions. Nature 385, 252–254 (1997).
Röder, J. et al. Heterogeneous patterns of abundance of epigeic arthropod taxa along a major elevation gradient. Biotropica 49, 217–228 (2017).
Evans, K. L., Warren, P. H. & Gaston, K. J. Species-energy relationships at the macroecological scale: A review of the mechanisms. Biol. Rev. Camb. Philos. Soc. 80, 1–25 (2005).
Kissling, W. D., Rahbek, C. & Böhning-Gaese, K. Food plant diversity as broad-scale determinant of avian frugivore richness. Proc. R. Soc. Biol. Sci. 274, 799–808 (2007).
Kissling, W. D., Field, R. & Böhning-Gaese, K. Spatial patterns of woody plant and bird diversity: Functional relationships or environmental effects? Glob. Ecol. Biogeogr. 17, 327–339 (2008).
Chown, S. L. & Gaston, K. J. Exploring links between physiology and ecology at macro scales: The role of respiratory metabolism in insects. Biol. Rev. 74, 87–120 (1999).
de Araújo, W. S. Different relationships between galling and non-galling herbivore richness and plant species richness: A meta-analysis. Arthropod. Plant. Interact. 7, 373–377 (2013).
Qian, H. & Kissling, W. D. Spatial scale and cross-taxon congruence of terrestrial vertebrate and vascular plant species richness in China. Ecology 91, 1172–1183 (2010).
Burrascano, S. et al. Congruence across taxa and spatial scales: Are we asking too much of species data? Glob. Ecol. Biogeogr. 27, 980–990 (2018).
Field, R. et al. Spatial species-richness gradients across scales: A meta-analysis. J. Biogeogr. 36, 132–147 (2009).
Giorgis, M. A. et al. Composición florística del Bosque Chaqueño Serrano de la provincia de Córdoba, Argentina. Kurtziana 36, 9–43 (2011).
Cabido, M., Funes, G., Pucheta, E., Vendramani, F. & Díaz, S. A chorological analysis of the mountains from Central Argentina. Is all what we call Sierra Chaco really Chaco? Contribution to the study of the flora and vegetation of the Chaco: 12. Candollea 53, 321–331 (1998).
Giorgis, M. A. et al. Changes in floristic composition and physiognomy are decoupled along elevation gradients in central Argentina. Appl. Veg. Sci. 20, 553–571 (2017).
Cabrera, A. L. Fitogeografia de la República Argentina. In Enciclopedia Argentina de Agricultura y Jardinería Vol. 14 (ed. Kugler, W. F.) 1–42 (ACME, New York, 1976).
Giorgis, M. A. et al. Diferencias en la estructura de la vegetación del sotobosque entre una plantación de Pinus taedaL. (Pinaceae) y un matorral serrano (Cuesta Blanca, Córdoba). Kurtziana 31, 39–49 (2005).
Martínez, G. A., Arana, M. D., Oggero, A. J. & Natale, E. S. Biogeographical relationships and new regionalisation of high-altitude grasslands and woodlands of the central Pampean Ranges (Argentina), based on vascular plants and vertebrates. Aust. Syst. Bot. 29, 473–488 (2016).
QGIS Development Team. QGIS Geographic Information System (Accessed 19 April 2019). (2019).
Kent, M. The description of vegetation in the field. In Vegetation Description and Data Analysis: A Practical Approach (ed. Kent, M.) 65–116 (Wiley-Blackwell, Hoboken, 2012).
Catálogo de las plantas vasculares del Cono Sur : (Argentina, Sur de Brasil, Chile, Paraguay y Uruguay). (Missouri Botanical Garden Press, 2008).
Haddad, N., Tilman, D., Haarstad, J., Ritchie, M. & Knops, J. M. N. Contrasting effects of plant richness and composition on insect communities: a field experiment. Am. Nat. 158, 17–35 (2001).
Braun, H. & Zubarán, G. Tettigoniidae (Orthoptera) Species from Argentina and Uruguay (2019).
Carbonell, C. S., Cigliano, M. M. & Lange, C. E. Acridomorph (Orthoptera) Species of Argentina and Uruguay. Version II [2019]. https://biodar.unlp.edu.ar/acridomorph/.
Cigliano, M. M., Braun, H., Eades, D. C. & Otte, D. Orthoptera Species File. Version 5.0/5.0 (2018). http://orthoptera.speciesfile.org.
Fick, S. E. & Hijmans, R. J. WorldClim 2: New 1-km spatial resolution climate surfaces for global land areas. Int. J. Climatol. 37, 4302–4315 (2017).
Hijmans, R. J., Cameron, S. E., Parra, J. L., Jones, P. G. & Jarvis, A. Very high resolution interpolated climate surfaces for global land areas. Int. J. Climatol. 25, 1965–1978 (2005).
Carrara, R., Silvestro, V. A., Cheli, G. H., Campón, F. F. & Flores, G. E. Disentangling the effect of climate and human influence on distribution patterns of the darkling beetle Scotobius pilularius Germar, 1823 (Coleoptera: Tenebrionidae). Ann. Zool. 66, 693–701 (2016).
Aisen, S., Werenkraut, V., Márquez, M. E. G., Ramírez, M. J. & Ruggiero, A. Environmental heterogeneity, not distance, structures montane epigaeic spider assemblages in north-western Patagonia (Argentina). J. Insect Conserv. 21, 1–12 (2017).
Bilskie, J. Soil Water Status: Content and Potential (Campbell Scientific Inc., Logan, 2001).
Tucker, C. Red and photographic infrared linear combinations for monitoring vegetation. Remote Sens. Environ. 8, 127–150 (1979).
Wang, J., Rich, P. M., Price, K. P. & Dean-Kettle, W. Relations between NDVI, grassland production, and crop yield in the central great plains. Geocarto Int. 20, 5–11 (2005).
Oindo, B. O., de By, R. A. & Skidmore, A. K. Interannual variability of NDVI and bird species diversity in Kenya. Int. J. Appl. Earth Obs. Geoinf. 2, 172–180 (2000).
IGN. Modelo Digital de Elevaciones de la República Argentina. (Instituto Geográfico Nacional—Dirección General de Servicios Geográficos—Dirección de Geodesia, 2016).
Riley, S. J., DeGloria, S. D. & Elliot, R. A terrain ruggedness index that quantifies topographic heterogeneity. Intermt. J. Sci. 5, 23–27 (1999).
Stein, A. & Kreft, H. Terminology and quantification of environmental heterogeneity in species-richness research. Biol. Rev. 90, 815–836 (2015).
Tilman, D. & Pacala, S. W. The maintenance of species richness in plant communities. In Species Diversity in Ecological Communities (eds Ricklefs, R. E. & Schulter, D.) 13–25 (University of Chicago Press, Chicago, 1993).
Cleveland, W. S., Grosse, E. & Shyu, W. M. Local regresion models. In Statistical Models in S (eds Chambers, J. M. & Hastie, T. J.) 227 (Chapman and Hall, London, 1993).
Szewczyk, T. & Mccain, C. M. A systematic review of global drivers of ant elevational diversity. PLoS ONE 11, e0155404 (2016).
Beck, J. et al. Elevational species richness gradients in a hyperdiverse insect taxon: A global meta-study on geometrid moths. Glob. Ecol. Biogeogr. 26, 412–424 (2017).
Bolker, B. M. Ecological Statistics: Contemporary Theory and Application (Oxford University Press Inc., Oxford, 2015).
Grace, J. B. Structural Equation Modeling and Natural Systems (Cambridge University Press, Cambridge, 2006).
Lefcheck, J. S. piecewiseSEM: Piecewise structural equation modelling in r for ecology, evolution, and systematics. Methods Ecol. Evol. 7, 573–579 (2016).
Jiménez-Alfaro, B., Chytrý, M., Mucina, L., Grace, J. B. & Rejmánek, M. Disentangling vegetation diversity from climate-energy and habitat heterogeneity for explaining animal geographic patterns. Ecol. Evol. 6, 1515–1526 (2016).
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