PARENT-OFFSPRING CONFLICT OVER THE SEX-RATIO IN A DIPLOID POPULATION WITH DIFFERENT INVESTMENT IN MALE AND IN FEMALE OFFSPRING

被引：8
|
作者：
ESHEL, I [1 ]
SANSONE, E [1 ]
机构：
[1] NAPLES UNIV,DEPT MATH & APPLICAT,I-80138 NAPLES,ITALY
来源：
AMERICAN NATURALIST | 1991年 / 138卷 / 04期
关键词：
D O I：
10.1086/285262
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
A two-locus diploid model is developed in order to analyze stable mother's and offsprings' strategies concerning the offsprings' sex determination and progeny's sex ratio when the cost of rearing a male offspring is different from the cost of rearing a female offspring. It is shown that if the ratio in cost is lambda:1, then the resulting stable sex ratio in the population lies between the value 1:lambda, obtained with full mother's control, and 1:lambda-1/2, obtained with no maternal interference. The effects of biologically relevant parameters on the sex ratio and sex determination are investigated.
引用
收藏
页码：954 / 972
页数：19
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