Species loss due to nutrient addition increases with spatial scale in global grasslands
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Authors
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 = cAz, 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 m2) 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 un-changed across sampling scales, whereas total species loss increased over threefold across our range of sampling scales.
| Originalsprache | Englisch | 
|---|---|
| Zeitschrift | Ecology Letters | 
| Jahrgang | 24 | 
| Ausgabenummer | 10 | 
| Seiten (von - bis) | 2100-2112 | 
| Anzahl der Seiten | 13 | 
| ISSN | 1461-023X | 
| DOIs | |
| Publikationsstatus | Erschienen - 01.10.2021 | 
| Extern publiziert | Ja | 
Bibliographische Notiz
Publisher Copyright:
© 2021 John Wiley & Sons Ltd.
- Ökologie, Evolution, Verhaltenswissenschaften und Systematik
 
ASJC Scopus Sachgebiete
- Biologie - biodiversity, community ecology, grasslands, herbivores, nutrients
 
