Species loss due to nutrient addition increases with spatial scale in global grasslands.

Autor: Seabloom EW; Department of Ecology, Evolution, and Behavior, University of Minnesota. St. Paul, MN, USA., Batzer E; Department of Plant Sciences, University of California, Davis, CA, USA., Chase JM; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Department of Computer Sciences, Martin Luther University, Halle (Saale), Germany., Stanley Harpole W; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Department of Physiological Diversity, Helmholtz Center for Environmental Research - UFZ, Leipzig, Germany.; Martin Luther University Halle-Wittenberg, Halle (Saale), Germany., Adler PB; Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, USA., Bagchi S; Centre for Ecological Sciences, Indian Institute of Science, Bangalore, India., Bakker JD; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA., Barrio IC; Faculty of Environmental and Forest Sciences, Agricultural University of Iceland, Reykjavík, Iceland., Biederman L; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames Iowa, USA., Boughton EH; Archbold Biological Station, Venus, FL, USA., Bugalho MN; Centre for Applied Ecology 'Prof. Baeta Neves' (CEABN-InBIO), School of Agriculture, University of Lisbon, Lisbon, Portugal., Caldeira MC; Forest Research Centre, School of Agriculture, University of Lisbon, Lisbon, Portugal., Catford JA; Department of Geography, King's College London, London, UK., Daleo P; Instituto de Investigaciones Marinas y Costeras (IIMyC), UNMDP - CONICET, Mar del Plata, Argentina., Eisenhauer N; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Institute of Biology, Leipzig University, Leipzig, Germany., Eskelinen A; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Department of Physiological Diversity, Helmholtz Center for Environmental Research - UFZ, Leipzig, Germany.; Department of Ecology and Genetics, University of Oulu, Oulu, Finland., Haider S; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Institute of Biology / Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany., Hallett LM; Department of Biology and Environmental Studies Program, University of Oregon, Eugene, Oregon, USA., Svala Jónsdóttir I; Institute of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland., Kimmel K; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA., Kuhlman M; MPG Ranch, Missoula, MT, USA., MacDougall A; University of Guelph, Guelph, ON, Canada., Molina CD; IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Buenos Aires, Argentina, Buenos Aires, Argentina., Moore JL; School of Biological Sciences, Monash University, Clayton, VIC, Australia., Morgan JW; Department of Ecology, Environment & Evolution, La Trobe University, Bundoora, VIC, Australia., Muthukrishnan R; Environmental Resilience Institute, Indiana University, Bloomington, IN, USA., Ohlert T; Department of Biology, University of New Mexico, Albuquerque, NM, USA., Risch AC; Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Community Ecology, Birmensdorf, Switzerland., Roscher C; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.; Department of Physiological Diversity, Helmholtz Center for Environmental Research - UFZ, Leipzig, Germany., Schütz M; Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Community Ecology, Birmensdorf, Switzerland., Sonnier G; Archbold Biological Station, Venus, FL, USA., Tognetti PM; IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Buenos Aires, Argentina, Buenos Aires, Argentina., Virtanen R; Department of Ecology and Genetics, University of Oulu, Oulu, Finland., Wilfahrt PA; Department of Ecology, Evolution, and Behavior, University of Minnesota. St. Paul, MN, USA., Borer ET; Department of Ecology, Evolution, and Behavior, University of Minnesota. St. Paul, MN, USA.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2021 Oct; Vol. 24 (10), pp. 2100-2112. Date of Electronic Publication: 2021 Jul 09.
DOI: 10.1111/ele.13838
Abstrakt: The effects of altered nutrient supplies and herbivore density on species diversity vary with spatial scale, because coexistence mechanisms are scale dependent. This scale dependence may alter the shape of the species-area relationship (SAR), which can be described by changes in species richness (S) as a power function of the sample area (A): S = cA z , where c and z are constants. We analysed the effects of experimental manipulations of nutrient supply and herbivore density on species richness across a range of scales (0.01-75 m 2 ) at 30 grasslands in 10 countries. We found that nutrient addition reduced the number of species that could co-occur locally, indicated by the SAR intercepts (log c), but did not affect the SAR slopes (z). As a result, proportional species loss due to nutrient enrichment was largely unchanged across sampling scales, whereas total species loss increased over threefold across our range of sampling scales.
(© 2021 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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