ADAPTIVE VARIATION IN SEX-RATIOS OF OFFSPRING IN NUTRITIONALLY STRESSED MULE DEER

被引：35
|
作者：
KUCERA, TE [1 ]
机构：
[1] UNIV CALIF BERKELEY,MUSEUM VERTEBRATE ZOOL,BERKELEY,CA 94720
来源：
JOURNAL OF MAMMALOGY | 1991年 / 72卷 / 04期
关键词：
D O I：
10.2307/1381837
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
I examined the sex ratio of litters of mule deer (Odocoileus hemionus) collected during late winter in 1984-1989 in eastern California. Although the overall sex ratio was unity, heavier mothers, and those with higher kidney-fat indexes, tended to produce male-biased litters. Results conformed to predictions from theory that relates maternal-investment ability to adaptive variation in sex ratios of offspring in polygynous animals.
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页码：745 / 749
页数：5
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