Environmental seasonality regulates community evenness in neotropical bat communities

Supplementary Material 1. List of sites and their descriptors. We selected sites below 1000 m.a.s.l., that had a sampling effort greater than 10000 m².h (sampling effort calculated following Straube and Bianconi 2002) and a sampling coverage &gt; 0.8 according to Chao and Jost (2012). Site IDs and descriptors from the ATLANTIC BATS data base (Muylaert et al. 2017).<br>Supplementary Material 2. Correlations between original values from the 19 WorldClim layers (Fick and Hijmans 2017) and the four axes selected after from the PCA. PCA 1 explained 47.1% of the variation across climatic variables and shows a gradient of temperature seasonality across our sampling sites in the Atlantic Forest. <br>Supplementary Material 3. List of all path models for evenness indices <i>J′, ¹E and ²E</i> . Most significant model in bold (lowest AIC and non-significant P value from a Ficher’s C test). Env = Environmental seasonality derived from 19 WorldClim layers; S = species richness; M = biomass. Numbers above the arrows are standardized path coefficients. The “null” path model is saturated with zero degrees of freedom, and no Fisher’s C score and P-value could be calculated. Therefore, the “null” model at the bottom of the table for comparison.<br>Supplementary Material 4. Matrix of species occurrences across sites. Sites are ordered by environmental seasonality; sites with less seasonable climate have more rare species (left side of the matrix) compared to sites with more seasonable climate (right side of the matrix). Env.var = Environmental seasonality. ID = Site ID according to Muylaert et al. (2017). Environmental seasonality is the first axis from a PCA that accounted for 47.1% of the variation across climatic variables. Higher values indicate sites that experience greater temperature seasonality, lower mean annual temperature, and warmest and coldest quarters.