Data: Sex-specific effects of capital resources on reproductive timing and success in red squirrels

Jessica Haines, David Delaney, Andrea Wishart, Andrew McAdam, David Coltman, Jeffrey Lane, Ben Dantzer & Stan Boutin
Reproduction is an energetically expensive activity for both sexes. However, if males and females differ in their annual timing of reproduction, such that peak investment for one sex occurs during a more resource-limited period, there is an opportunity for sex-specific selection to act on the acquisition of energetic resources. Both male and female North American red squirrels (Tamiasciurus hudsonicus) cache conifer cones, although males typically have larger caches than females. Peak energetic investment in reproduction...
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