Reports

Sex-Biased Litter Reduction in Food-Restricted Wood Rats (Neotoma floridana)

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Science  06 Mar 1981:
Vol. 211, Issue 4486, pp. 1058-1060
DOI: 10.1126/science.211.4486.1058

Abstract

Mothers of eastern wood rats (Neotoma floridana) normally invest their lactation energy equally in male and female offspring, but alter that investment when their food is severely restricted during lactation. The effect of the altered investment is a significant bias against males in both mortality and growth.