Costing reproduction

被引:117
作者
Barnes, AI [1 ]
Partridge, L [1 ]
机构
[1] UCL, Dept Biol, London WC1E 6BT, England
基金
英国生物技术与生命科学研究理事会;
关键词
D O I
10.1006/anbe.2003.2122
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
The placing of animal behaviour in an evolutionary context is one of the great achievements of biologists in the last century. Life history theory has been a powerful tool in explaining both adaptation and constraint in phenotypic evolution, but rarely addresses the mechanistic bases of the traits it discusses. Recent advances in molecular biology have begun to uncover these mechanisms, and provide a challenge to the traditional view that life history trade-offs are the result of the differential allocation of limiting resources. In particular, costs of reproduction in Caenorhabditis elegans appear to arise from molecular signals, which have been claimed to be arbitrary with respect to fitness. We review the evidence that costs of reproduction in C. elegans are not resource based, and find that this is not necessarily the case. However, we welcome the challenge to traditional thinking, and suggest that integrating an understanding of mechanisms into life history theory will be one of the most exciting tasks facing evolutionary biologists in the 21st century. (C) 2003 Published by Elsevier Ltd on behalf of The Association for the Study or Animal Behaviour.
引用
收藏
页码:199 / 204
页数:6
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