A COST OF SEXUAL HARASSMENT IN THE GUPPY, POECILIA-RETICULATA

被引：201

作者：

MAGURRAN, AE ^{[1
]}

SEGHERS, BH ^{[1
]}

机构：

[1] UNIV OXFORD, DEPT ZOOL, ANIM BEHAV RES GRP, OXFORD OX1 3PS, ENGLAND

来源：

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1994年 / 258卷 / 1351期

关键词：

D O I：

10.1098/rspb.1994.0147

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Male guppies in wild Trinidadian populations devote a large proportion of their time to pursuing females, and females, as a result, are frequent targets of sneaky mating attempts. In this paper we demonstrate a cost, in terms of lost feeding opportunities, to these female recipients of sexual harassment. An experiment in pools of a Trinidadian stream manipulated sex ratio and fish density within the ranges naturally occurring in the system. We found that sexual harassment (from males) led to a 25% decrease in foraging beyond that which occurred as a result of female competition. Because the fecundity of female fish is a product of their feeding success, reductions in food intake have potentially serious fitness consequences.

引用

页码：89 / 92

页数：4

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