Facilitative plant interactions and climate simultaneously drive alpine plant diversity

作     者：Cavieres, Lohengrin A. Brooker, Rob W. Butterfield, Bradley J. Cook, Bradley J. Kikvidze, Zaal Lortie, Christopher J. Michalet, Richard Pugnaire, Francisco I. Schoeb, Christian Xiao, Sa Anthelme, Fabien Bjoerk, Robert G. Dickinson, Katharine J. M. Cranston, Brittany H. Gavilan, Rosario Gutierrez-Giron, Alba Kanka, Robert Maalouf, Jean-Paul Mark, Alan F. Noroozi, Jalil Parajuli, Rabindra Phoenix, Gareth K. Reid, Anya M. Ridenour, Wendy M. Rixen, Christian Wipf, Sonja Zhao, Liang Escudero, Adrian Zaitchik, Benjamin F. Lingua, Emanuele Aschehoug, Erik T. Callaway, Ragan M. 

作者机构：Univ Concepcion Dept Bot Fac Ciencias Nat & Oceanog Concepcion Chile Inst Ecol & Biodiversidad Santiago Chile James Hutton Inst Aberdeen AB15 8QH Scotland No Arizona Univ Merriam Powell Ctr Environm Res Flagstaff AZ 86011 USA No Arizona Univ Dept Biol Sci Flagstaff AZ 86011 USA Minnesota State Univ Dept Biol Sci Mankato MN 56001 USA Ilia State Univ Inst Ecol GE-0179 Tbilisi Georgia York Univ Dept Biol Toronto ON M3J 1P3 Canada Univ Bordeaux UMR CNRS EPOC 5805 F-33405 Talence France CSIC Estn Expt Zonas Aridas E-04120 La Granada De San Urbano Almeria Spain Lanzhou Univ Sch Life Sci MOE Key Lab Cell Act & Stress Adaptat Lanzhou 730000 Peoples R China IRD UMR DIADE AMAP CIRAD TA A51 PS2 F-34398 Montpellier 5 France Pontificia Univ Catolica Ecuador Quito Ecuador Univ Gothenburg Dept Earth Sci SE-40530 Gothenburg Sweden Univ Otago Dept Bot Dunedin New Zealand Univ Complutense Fac Farm Dept Biol Vegetal 2 E-28040 Madrid Spain Slovak Acad Sci Inst Landscape Ecol Bratislava 81499 Slovakia Univ Vienna Dept Conservat Biol Vegetat & Landscape Ecol A-1030 Vienna Austria Tribhuvan Univ Cent Dept Bot Kathmandu Nepal Univ Sheffield Dept Anim & Plant Sci Western Bank Sheffield S10 2TN S Yorkshire England Univ Montana Western Dept Biol Dillon MT 59725 USA WSL Inst Snow & Avalanche Res SLF CH-7260 Davos Switzerland Chinese Acad Sci Cold & Arid Regions Environm & Engn Res Inst Key Lab Ecohydrol Inland River Basin Lanzhou 730000 Peoples R China Univ Rey Juan Carlos Dept Biol & Geol Mostoles 28933 Spain Johns Hopkins Univ Dept Earth & Planetary Sci Baltimore MD 21218 USA Univ Padua Dept TeSAF I-35020 Legnaro Italy N Carolina State Univ Dept Biol Raleigh NC 27695 USA Univ Montana Div Biol Sci Missoula MT 59812 USA Univ Montana Inst Ecosyst Missoula MT 59812 USA 

出 版 物：《ECOLOGY LETTERS》 (生态学通讯)

年 卷 期：2014年第17卷第2期

页      面：193-202页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0713[理学-生态学] 

基　　金：Office Of The Director Office of Integrative Activities Funding Source: National Science Foundation 

主　　题：Alpine cushion species foundation species nurse plants positive interactions species richness 

摘      要：Interactions among species determine local-scale diversity, but local interactions are thought to have minor effects at larger scales. However, quantitative comparisons of the importance of biotic interactions relative to other drivers are rarely made at larger scales. Using a data set spanning 78 sites and five continents, we assessed the relative importance of biotic interactions and climate in determining plant diversity in alpine ecosystems dominated by nurse-plant cushion species. Climate variables related with water balance showed the highest correlation with richness at the global scale. Strikingly, although the effect of cushion species on diversity was lower than that of climate, its contribution was still substantial. In particular, cushion species enhanced species richness more in systems with inherently impoverished local diversity. Nurse species appear to act as a safety net sustaining diversity under harsh conditions, demonstrating that climate and species interactions should be integrated when predicting future biodiversity effects of climate change.