EVOLUTIONARILY STABLE STRATEGY SEX-RATIOS WHEN CORRELATES OF RELATEDNESS CAN BE ASSESSED

被引:34
作者
TAYLOR, PD [1 ]
CRESPI, BJ [1 ]
机构
[1] SIMON FRASER UNIV, DEPT BIOL SCI, BURNABY V5A 1S6, BC, CANADA
关键词
D O I
10.1086/285605
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
In a structured population, with partial dispersal of offspring, there will be competition among related offspring for reproductive resources, or local resource competition (LRC), and, when the strength of this competition differs between the sexes, this will generate a sex ratio bias in favor of the sex with the least LRC. Standard models assume that the parent, in choosing the sex ratio, responds to the average level of LRC in the population. However, there will always be variation in the relatedness of the parent to her breeding neighbors, and this will affect the strength of the LRC experienced by her offspring. If she can assess this relatedness variation, or correlates thereof, it might be adaptive for her to respond by shifting the sex ratio bias of her offspring appropriately. We examine this question with an inclusive fitness model in a patch-structured population with partial dispersal of mated offspring. The analysis is complicated, but an overall conclusion is that, for moderate dispersal rates, natives should employ a more female-biased sex ratio than immigrants. We find that these results fit sex ratio data in a thrips Hoplothrips pedicularius population.
引用
收藏
页码:297 / 316
页数:20
相关论文
共 17 条
[1]   SEX-RATIO THEORY IN GEOGRAPHICALLY STRUCTURED POPULATIONS [J].
BULMER, MG .
HEREDITY, 1986, 56 :69-73
[2]  
Crespi Bernard J., 1993, P214
[4]   The variant call format and VCFtools [J].
Danecek, Petr ;
Auton, Adam ;
Abecasis, Goncalo ;
Albers, Cornelis A. ;
Banks, Eric ;
DePristo, Mark A. ;
Handsaker, Robert E. ;
Lunter, Gerton ;
Marth, Gabor T. ;
Sherry, Stephen T. ;
McVean, Gilean ;
Durbin, Richard .
BIOINFORMATICS, 2011, 27 (15) :2156-2158
[5]  
FRANK SA, 1985, EVOLUTION, V39, P949, DOI 10.1111/j.1558-5646.1985.tb00440.x
[6]   THE GENETIC VALUE OF SONS AND DAUGHTERS [J].
FRANK, SA .
HEREDITY, 1986, 56 :351-354
[7]  
GRAFEN A, 1990, ANIM BEHAV, V156, P477
[8]  
Hamilton W.D., 1979, P167
[9]   EXTRAORDINARY SEX RATIOS [J].
HAMILTON, WD .
SCIENCE, 1967, 156 (3774) :477-+
[10]  
Hamilton WD, 1972, ANNU REV ECOL SYST, V3, P192