Unveiling the environmental drivers of intraspecific body size variation in terrestrial vertebrates

Datasets for the paper: Uncovering the environmental drivers of intraspecific body size variation in terrestrial vertebrates. Includes dataset used for the analysis and Appendix S3. Bergmanns_bodysize.csv: This dataset contains body sizes for birds, mammals, amphibians, and reptiles, averaged within 10x10 km cells for each species. Body size is represented as mass (avg.mass) for birds and mammals and snout-vent length (avg.length) for amphibians and reptiles. Body size data were retrieved from the VertNet database (http://vertnet.org/resources/datatoolscode.html) and were limited to records of adult individuals, records after 1970, and records georeferenced with a precision of 10km or less . Environmental variables were also extracted for each cell: Mean (tavg; °C), minimum (tmin) and maximum (tmax) annual temperature and mean annual precipitation (prec; mm) were retrieved from WorldClim version 2.0 at a resolution of 5 arcminutes (http://worldclim.org; Fick & Hijmans, 2017). These represent average values from 1970-2000. Mean annual potential evapotranspiration (pet; mm/year) was retrieved from the ENVIREM database (Title & Bemmels, 2018; https://envirem.github.io/#downloads) at a 5 arcminute resolution. This represents the average from 1960-1990. Mean annual net primary productivity (npp; g/m2/day) and annual standard deviation of NPP (npp.sd) were retrieved from from the NASA Earth Observatory (ftp://neoftp.sci.gsfc.nasa.gov/geotiff.float/MOD17A2_M_PSN/) from 2000-2017 at a resolution of 6 arcminutes. Appendix S3. Latitudinal_range_species_records.csv: Dataset containing the minimum (lat.min), maximum (lat.max), and range of latitudes (lat.rng) represented for each species included in the analysis