Climate shapes and shifts functional biodiversity in forests worldwide.

Autor:	Wieczynski DJ; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095; daniel.wieczynski@gmail.com., Boyle B; Department of Ecology and Evolutionary Biology, University of Arizona, AZ 85721., Buzzard V; School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721., Duran SM; Department of Ecology and Evolutionary Biology, University of Arizona, AZ 85721., Henderson AN; Department of Ecology and Evolutionary Biology, University of Arizona, AZ 85721., Hulshof CM; Department of Biology, Virginia Commonwealth University, Richmond, VA 23219., Kerkhoff AJ; Department of Biology, Kenyon College, Gambier, OH 43022., McCarthy MC; Private address, Mulino, OR 97042., Michaletz ST; Department of Botany and Biodiversity Research Centre, University of British Columbia, BC V6T 1Z4, Canada., Swenson NG; Department of Biology, University of Maryland, College Park, MD 20742., Asner GP; Department of Global Ecology, Carnegie Institution for Science, Stanford, CA 94305., Bentley LP; Department of Biology, Sonoma State University, Rohnert Park, CA 94928., Enquist BJ; Department of Ecology and Evolutionary Biology, University of Arizona, AZ 85721.; Santa Fe Institute, Santa Fe, NM 87501., Savage VM; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095.; Santa Fe Institute, Santa Fe, NM 87501.; Department of Biomathematics, University of California, Los Angeles, CA 90095.
Jazyk:	angličtina
Zdroj:	Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2019 Jan 08; Vol. 116 (2), pp. 587-592. Date of Electronic Publication: 2018 Dec 24.
DOI:	10.1073/pnas.1813723116
Abstrakt:	Much ecological research aims to explain how climate impacts biodiversity and ecosystem-level processes through functional traits that link environment with individual performance. However, the specific climatic drivers of functional diversity across space and time remain unclear due largely to limitations in the availability of paired trait and climate data. We compile and analyze a global forest dataset using a method based on abundance-weighted trait moments to assess how climate influences the shapes of whole-community trait distributions. Our approach combines abundance-weighted metrics with diverse climate factors to produce a comprehensive catalog of trait-climate relationships that differ dramatically-27% of significant results change in sign and 71% disagree on sign, significance, or both-from traditional species-weighted methods. We find that ( i ) functional diversity generally declines with increasing latitude and elevation, ( ii ) temperature variability and vapor pressure are the strongest drivers of geographic shifts in functional composition and ecological strategies, and ( iii ) functional composition may currently be shifting over time due to rapid climate warming. Our analysis demonstrates that climate strongly governs functional diversity and provides essential information needed to predict how biodiversity and ecosystem function will respond to climate change. Competing Interests: The authors declare no conflict of interest.
Databáze:	MEDLINE
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