However, activity of voles did not explain the susceptibility of voles to least weasel predation, nor did vole sex, length of the feeding period or body mass difference between the voles fed on E+ and E− diets in the beginning of the experiment (Table 1).
Interestingly, the relative body mass difference between the lightest and heaviest sibling (ca. 22% of body mass) persisted throughout the study.
Our measurements of total body fat are consistent with all or most of the body mass difference between the decades being attributable to a decline in fat reserves.
We entered paternity (single or multiple) as the dependent variable, trial and treatment as fixed effects, and female body mass, the body mass difference between males and females, and the difference in the two males' scent marking as covariates.
The body mass difference between the decades is greatest (~4 g) during the autumn, and shrinks over the course of the winter until it disappears in the pre-spring migration period.
As with all mouse lemurs, no body mass differences could be discerned between the sexes.
Thus, relative to fat-free body mass, the differences in VO2max and endurance performance between men and women with comparable training are smaller, but still significant.
Neither body mass nor FFM differences between seasonal training phases were observed (all p > 0.05).
Nagy concluded that a large part of the variation in FMR was due to variation in body mass, once the differences between endotherms and ectotherms was controlled, independent of the linear or non linear statistical models used to describe the data set.
