Body size and trophic levels explain global asymmetric response of tetrapod diversity to climate effects

Although climate-based hypotheses are widely used to explain large-scale diversity patterns, they fall short of explaining the spatial variation among taxonomic groups. Integrating food web and metabolic theories into macroecology is a promising step forward, as they allow including explicit taxon-specific traits that can potentially mediate the relationship between climate and diversity. Our investigation focuses on the role of body size and trophic structure in mediating the influence of contemporary climate and historical climate change on global tetrapods species richness. We used piecewise structural equation modeling to assess the direct effects of contemporary climate and climate instability of species richness and  the indirect effects of climate on tetrapod richness mediated by community-wide species traits. We found that birds and mammals are less sensitive to the direct effect of contemporary climate than amphibians and squamates. Contemporary climate and climate instability ..., , , # BODY SIZE AND TROPHIC LEVELS EXPLAIN GLOBAL ASYMMETRIC RESPONSE OF TETRAPOD DIVERSITY TO CLIMATE EFFECTS

### Datasets included:

1\) Bird

* Data_bird: Data of occorrence and traits of communities (i.e., median of body size, variance and mean trophiv level)
* Script_bird: Script to reproduce the results of birds. Contens the models, dbMEM and pSEM.

2\) Mammals

* Data_mammal: Data of occorrence and traits of communities (i.e., median of body size, variance and mean trophiv level)
* Script_mammal: Script to reproduce the results of mammals. Contens the models, dbMEM and pSEM.

3\) Amphibian

* Data_amph: Data of occorrence and traits of communities (i.e., median of body size, variance and mean trophiv level)
* Script_amph: Script to reproduce the results of Amphibians. Contens the models, dbMEM and pSEM.

4\) Squamates

* Data_lizards: Data of occorrence and traits of communities (i.e., median of body size, variance and mean trophiv level)
* Script_lizards: Scri...