DOI: 10.5061/dryad.c063r
title: Data from: Diversification rates are more strongly related to microhabitat than climate in squamate reptiles (lizards and snakes)

description: Patterns of species richness among clades can be directly explained by the
 ages of clades or their rates of diversification. The factors that most
 strongly influence diversification rates remain highly uncertain, since
 most studies typically consider only a single predictor variable. Here, we
 explore the relative impacts of macroclimate (i.e., occurring in tropical
 vs. temperate regions) and microhabitat use (i.e., terrestrial, fossorial,
 arboreal, aquatic) on diversification rates of squamate reptile clades
 (lizards and snakes). We obtained data on microhabitat, macroclimatic
 distribution, and phylogeny for &gt;4000 species. We estimated
 diversification rates of squamate clades (mostly families) from a
 time-calibrated tree, and used phylogenetic methods to test relationships
 between diversification rates and microhabitat and macroclimate. Across 72
 squamate clades, the best-fitting model included microhabitat but not
 climatic distribution. Microhabitat explained ∼37% of the variation in
 diversification rates among clades, with a generally positive impact of
 arboreal microhabitat use on diversification, and negative impacts of
 fossorial and aquatic microhabitat use. Overall, our results show that the
 impacts of microhabitat on diversification rates can be more important
 than those of climate, despite much greater emphasis on climate in
 previous studies.
description: Supplementary File
 1Supplementary File 1.
 Species richness, clade ages, and stem and crown diversification rates for
 72 families of squamates.Supplementary File
 2Supplementary File 2.
 Species richness, clade ages, and stem and crown diversification rates for
 505 genera of squamates.Supplementary File
 3Supplementary File 3.
 Microhabitat data for all squamate species included in this study,
 including references.Supplementary File
 4Supplementary File 4.
 Raw and logit-transformed data for proportional and strict proportions of
 microhabitat use for 72 squamate families.Supplementary File
 5Supplementary File 5.
 Raw and logit-transformed data for strict proportions of microhabitat use
 and climatic distribution for 505 squamate generaSupplementary File
 6Supplementary File 6.
 Climatic distribution for all squamate species analyzed in this
 study.Supplementary File
 7Supplementary File 7.
 Proportional climatic distributions of species in 72 squamate
 families.Supplementary File
 8Supplementary File 8.
 Microhabitat data for the MuSSE analysesSupplementary File
 9Supplementary File 9.
 Methods and results for time-dependent diversification
 analysesSupplementary File
 10Supplementary File 10.
 Results from time-dependent diversification analyses for lizards (using
 stem-group ages)Supplementary File
 11Supplementary File 11.
 Results from time-dependent diversification analyses for lizards (using
 crown-group ages)Supplementary File
 12Supplementary File 12.
 Results from time-dependent diversification analyses for snakes (using
 stem-group ages)Supplementary File
 13Supplementary File 13.
 Results from time-dependent diversification analyses for snakes (using
 crown-group ages)