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NEWS 30 June 2020 Elizabeth Mrema has a mighty task ahead of her, leading countries as they negotiate new biodiversity targets. Smriti Mallapaty Search for this author in: Habitat destruction is one of the main drivers of species loss.Credit: Robin Moore/National Geographic Earlier this month, Elizabeth Mrema was appointed executive secretary of the United Nations […] More
When faced with extreme stress, coral reefs can undergo bleaching: a breakdown of the relationship between the animal host and their colourful internal photosynthetic symbionts. Bleached corals that are unable to recover their symbiont populations face starvation, disease and death. Bizarrely, bleaching sometimes results in vibrantly green-, yellow- or purple–blue-coloured coral, rather than white. These […] More
1. Clark, W. & Mangel, M. The evolutionary advantages of group foraging. Theor. Popul. Biol. 75, 45–75 (1986). MathSciNet MATH Google Scholar 2. Bertram, B. C. R. Living in groups: predators and prey. in Behavioural Ecology: an Evolutionary Approach 221–248 (Blackwell Scientific, Oxford, 1978). Google Scholar 3. Svanbäck, R. & Bolnick, D. I. Intraspecific competition […] More
EDITORIAL 30 June 2020 A proposal for one, simple goal, equivalent to the 2 °C climate target, needs to be thoroughly assessed. The world’s last male northern white Rhino is one of only five of his species left on Earth.Credit: Nichole Sobecki/The Washington Post/Getty Next year, all eyes will be on Kunming, China, as talks […] More
Agricultural data and meteorological data This study used the total yield (kg) and planting area (ha) of maize for 2,247 counties in China from 1981 to 2010; these data were collected by the Ministry of Agriculture and Rural Affairs of the People’s Republic of China. The dataset contains summer maize and spring maize, while not […] More
Soils We analysed soil from plots of the Rothamsted Highfield Ley-Arable field experiment (00:21:48° W, 51:48:18° N) set on soil that has been under permanent grass since at least 1838. The soil is a silty clay loam (25% clay: 62% silt: 13% sand) (Chromic Luvisol according to FAO criteria). In 2008, plots of severely degraded […] More
1. De Queiroz, K. Ernst Mayr and the modern concept of species. Proc. Natl. Acad. Sci. 102, 6600–6607 (2005). ADS PubMed Google Scholar 2. Hey, J. On the failure of modern species concepts. Trends Ecol. Evol. 21, 447–450 (2006). PubMed Google Scholar 3. 3Mayden, R. L. A hierarchy of species concepts: the denouement in the […] More
1. Middleton, N. & Thomas, D. S. G. World Atlas of Desertification 182 (Arnold, London, 1997). Google Scholar 2. Wang, T., Xue, X., Zhou, L. H. & Guo, J. Combating aeolian desertification in northern China. Land Degrad. Dev. 26, 118–132 (2015). Article Google Scholar 3. Le Houérou, H. N. Biogeography of the arid steppeland north […] More
