Intrasexual competition and sexual selection in cooperative mammals

被引：0
作者：
T. H. Clutton-Brock
S. J. Hodge
G. Spong
A. F. Russell
N. R. Jordan
N. C. Bennett
L. L. Sharpe
M. B. Manser
机构：
[1] University of Cambridge,Department of Zoology
[2] Mammal Research Institute,Department of Animal Ecology
[3] University of Pretoria,Department of Animal and Plant Sciences
[4] Uppsala University,Department of Zoology
[5] University of Sheffield,undefined
[6] Western Bank,undefined
[7] University of Stellenbosch,undefined
[8] Zoologisches Institut,undefined
[9] Universität Zürich,undefined
来源：
Nature | 2006年 / 444卷
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摘要：
It tends to be the sex that invests least in its offspring that develops the more pronounced secondary sexual characteristic and competes more intensely for access to the opposite sex. A twelve-year study of meerkats throws light on an animal that is an exception to this rule. Although female meerkats invest more heavily in their progeny than males, they compete more strongly for reproductive opportunities; traits affecting competitive success have a stronger influence on their reproductive success; and they show greater development of secondary sexual characters associated with reproductive competition. This unusual behaviour may stem from the fact that resources necessary for the females' successful reproduction are heavily concentrated and potentially scarce, so that the emphasis on intrasexual competition for breeding opportunities becomes as strong or stronger in females as in males.
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页码：1065 / 1068
页数：3
相关论文
共 47 条
[1]  
Holekamp KE(1996)Rank and reproduction in the female spotted hyaena J. Reprod. Fertil. 108 229-237
[2]  
Smale L(2005)Potential causes and life-history consequences of sexual size dimorphism in mammals Mammal Rev. 35 101-115
[3]  
Szykman M(2005)Bateman's principle in cooperatively breeding vertebrates: the effects of non-breeding alloparents on variability in female and male reproductive success Integr. Comp. Biol. 45 903-914
[4]  
Isaac J(2001)Cooperation, control and concession in meerkat groups Science 291 478-481
[5]  
Hauber ME(2003)A genetic analysis of breeding success in the cooperative meerkat ( Behav. Ecol. 14 472-480
[6]  
Lacey EA(2002)) Proc. R. Soc. Lond. B 269 2147-2153
[7]  
Clutton-Brock TH(2004)The energetics of lactation in cooperatively breeding meerkats Anim. Behav. 68 1029-1040
[8]  
Griffin AS(2002)Behavioural tactics of breeders in cooperative meerkats Science 297 253-256
[9]  
Pemberton JM(2004)Evolution and development of sex differences in cooperative behavior in meerkats Horm. Behav. 46 141-150
[10]  
Brotherton PNM(1998)Hormonal correlates of dominance in meerkats ( Proc. R. Soc. Lond. B 265 2291-2295
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