The indiscriminate application of phylogenetically based comparative methods in cross-species correlated evolution analyses has been questioned. It has been argued that traits are not always significantly correlated to their phylogenetic history, and that correcting for phylogeny in these cases may be unnecessary and may even introduce statistical error. Statistical diagnostics to test for phyl...

Determining which underlying traits contribute to differences in whole-animal performance can be difficult when many traits differ between individuals with high and low capacities. We have previously found that migratory (anadromous marine) and non-migratory (stream-resident) threespine stickleback (Gasterosteus aculeatus) populations have genetically based differences in prolonged swimming per...

This paper examines the interplay among schizoid personality traits, chronicity of homelessness, and engagement in treatment in a homeless mentally ill population. Both qualitative and quantitative information will be provided about a sample of 125 homeless mentally ill individuals receiving psychiatric treatment in a comprehensive services drop-in clinic. Naturalistic observations and a case v...