REPRODUCTIVE RATE AND LONGEVITY IN THE WATERSTRIDER, GERRIS-BUENOI

被引：20

作者：

ROWE, L

SCUDDER, GGE

机构：

来源：

CANADIAN JOURNAL OF ZOOLOGY | 1990年 / 68卷 / 02期

关键词：

D O I：

10.1139/z90-057

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

There was no effect of food level on lifetime fecundity, but egg production rate was halved under low food conditions. This reduction in reproductive rate was balanced by a near doubling of female longevity under food scarcity. Males lived longer than females. Egg fertility was not significantly different across treatment. Body size accounted for <5% of the variation in all these variables. Data support a central component of life history theory: the assumption that there is a trade off between reproductive rate and longevity. -from Authors

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页码：399 / 402

页数：4

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