Spatial variation in direct and indirect effects of climate and productivity on species richness of terrestrial tetrapods.

Autor: Barreto E; Programa de pós-graduação em Ecologia e Evolução Universidade Federal de Goiás Goiânia Brazil.; Swiss Federal Institute for Forest, Snow and Landscape Birmensdorf Switzerland., Rangel TF; Swiss Federal Institute for Forest, Snow and Landscape Birmensdorf Switzerland.; Departamento de Ecologia Universidade Federal de Goiás Goiânia Brazil., Coelho MTP; Programa de pós-graduação em Ecologia e Evolução Universidade Federal de Goiás Goiânia Brazil., Cassemiro FAS; Swiss Federal Institute for Forest, Snow and Landscape Birmensdorf Switzerland.; Departamento de Ecologia Universidade Federal de Goiás Goiânia Brazil., Zimmermann NE; Swiss Federal Institute for Forest, Snow and Landscape Birmensdorf Switzerland., Graham CH; Swiss Federal Institute for Forest, Snow and Landscape Birmensdorf Switzerland.
Jazyk: angličtina
Zdroj: Global ecology and biogeography : a journal of macroecology [Glob Ecol Biogeogr] 2021 Sep; Vol. 30 (9), pp. 1899-1908. Date of Electronic Publication: 2021 Jul 14.
DOI: 10.1111/geb.13357
Abstrakt: Aim: We aimed to dissect the spatial variation of the direct and indirect effects of climate and productivity on global species richness of terrestrial tetrapods.
Location: Global.
Time Period: Present.
Major Taxa Studied: Terrestrial tetrapods.
Methods: We used a geographically weighted path analysis to estimate and map the direct and indirect effects of temperature, precipitation and primary productivity on species richness of terrestrial tetrapods across the globe.
Results: We found that all relationships shift in magnitude, and even in direction, among taxonomic groups, geographical regions and connecting paths. Direct effects of temperature and precipitation are generally stronger than both indirect effects mediated by productivity and direct effects of productivity.
Main Conclusions: Richness gradients seem to be driven primarily by effects of climate on organismal physiological limits and metabolic rates rather than by the amount of productive energy. Reptiles have the most distinct relationships across tetrapods, with a clear latitudinal pattern in the importance of temperature versus water.
(© 2021 The Authors. Global Ecology and Biogeography published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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