Body size questions
Bergmann’s rule–is body size in your clade positively associated with latitude?
The body size distribution hypothesis predicts that within a clade, the distribution of body sizes is unimodal with most species of intermediate size.
The body size diversity hypothesis predicts that species-rich clades have small organisms, while species-poor clades have large organisms.
Diversity gradients
Does your clade show a latitudinal diversity gradient?
Which latitude has the highest diversity and why?
Once you have chosen your clade, you can extract midpoint latitude data for your species from the dataset provided in the macroecology coursework folder.