Sex differences in morphology and parasitism.

Mean, standard error of the mean (S.E.) (* denotes median and standard error of the median), and sample size (N) of various internal and external morphometrics (measured in grams (g) and millimetres (mm)), and ecto- and endo-parasite burdens in males and females. Also shown are the p-values (P) from Mann-Whitney U tests examining sex differences for each parameter. No sex differences were evident in any of these tests (p>0.05) except with tick burden where males exhibited higher burdens than females (p = 0.036).