Data on "The relationship between body size and diet breadth in non-web building spiders"

The dataset contains four sheets: 1) niche width, 2) mean prey size, 3) range, max, min prey size, and 4) SD prey size. 

In all sheets, the "species" stands for spider species. The "Body_size" stands for body length of spiders (mm). The "ph1-ph20" stands for the codes to build phylogenetic trees of the spider species. 

In the sheet niche width, the "richness_est", "shannon_est", and "simpson_est" stand for the estimated measures of diet breadth, namely: diet richness, Shannon index of diversity, and Simpson index of equitability.

In the sheet mean prey size, the "Mean" stands for the mean body length of prey (mm) utilized by the spider species.

In the sheet range, max, min prey size, the "Range", "Max", and "Min" stand for the range of prey length, maximum prey length, and minimum prey length (mm) utilized by the spider species. 

In the sheet SD prey size, the "SD" stands for the standard deviation of prey length utilized by the spider species.