Gonadal hormones and aggression toward juvenile conspecifics in prairie deer mice

Whitsett, J. Mal; Gray, L. Earl; Bediz, G. Maria

doi:10.1007/bf00292564

Cited by 12 publications

(9 citation statements)

References 25 publications

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“…Numerous investigations have reported that females of several species of rodents are overtly aggressive toward juveniles. This has been observed in such species as Marmota mox [Snyder, 19621, M. musculus white et al, 1969;Rowe and Redfern, 19691, and Peromyscus maniculatus [Savidge, 1974;Whitsett et al, 1979;Ayer and Whitsett, 19801. Savidge [I9741 stated that it is the female aggression elicited by a new litter which forces the previous litter to emigrate.…”

Section: Introductionmentioning

confidence: 83%

Role of female behavior in controlling population growth in mice

et al. 1985

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Sex ratio does not appear to be a factor in generating the characteristic population growth curve. Freely growing populations of house mice, consisting of all females and one male, stopped their growth at approximately the same densities as normal sexratio populations used as references. The mechanism(s) of female control of population dynamics may be related to female aggressive behavior. As the all‐female/one‐male populations approached their maximum size, the females began to show wounding patterns and social hierarchies in much the same manner as males in populations with normal sex ratios. The male in each of the populations was severely wounded in the posterior region, and each lost its tail as a result of injuries which could have been inflicted only by the females. The female social hierarchy can be seen only when there has been reproduction and population growth. Assembled populations of all females rarely exhibit aggressive behavior. Female aggression becomes apparent only when the population approaches its maximum size and thereafter. These data are consistent with the hypothesis that males are competitive among themselves for territory and social rank, and ultimately to mate with the females. Other investigators have indicated that females respond to population size, which may reflect increased competition between the females with the establishment of territories. Thus female agression may control population growth, a role previously ascribed to male aggression.

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Section: Introductionmentioning

confidence: 83%

Role of female behavior in controlling population growth in mice

et al. 1985

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“…For example, in a mainland population of the deermouse (Peromyscus maniculatus), adults of both sexes are aggressive toward juveniles, whereas in an island population of the same species there was almost no aggression toward juveniles [Halpin, 1981;Whitsett et al, 1979]. At present, there is no clear explanation for these differences at either the population or the species level of analysis.…”

Section: Discussionmentioning

confidence: 75%

Syrian hamster males below an age threshold do not elicit aggression from unfamiliar adult males

2010

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In many species, young males are the dispersers, leaving their natal area after weaning to establish a breeding area of their own. As young males disperse, however, they are bound to encounter unfamiliar adult males with established territories. Such interactions between an adult male and a young male may always be agonistic. Alternatively, there may be an age threshold below which aggression is not elicited and above which the adult male is aggressive toward the juvenile male. To test these two alternative hypotheses, we paired 47 young Syrian hamster (Mesocricetus auratus) males ranging from 24 to 65 days of age with 47 adult male hamsters and measured aggressive and investigatory behavior for 5 min. We observed no aggression by the adult toward young males between 24 and 47 days of age or toward the single male that was 49 days of age. Young males that were 50 days of age or older, however, elicited significant levels of aggression from the adults. These results indicate that in Syrian hamsters, young males are less vulnerable to adult aggression up to an age threshold and are more vulnerable to adult aggression beyond that threshold. This pattern may facilitate the establishment of territories by dispersing young males below that age threshold.

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“…Peromvscus maniculatus of both sexes appear to utilize aggressive ability to limit settlement of juveniles on their home range (Ayer & Whitsett, 1980;Enders, 1978;Fordham, 1971;Taitt, 1981;Whitsett et al, 1979). Aggressive ability is also important in male-male competition in E*.…”

Section: Discussionmentioning

confidence: 99%

“…Peromyscus maniculatus bairdi appear to have opted Instead for a strategy of limiting the number of breeding individuals in or near their home ranges. This Is accomplished in part by adults aggressively limiting juvenile settlement in their home range (Ayer & Whitsett, 1980;Enders, 1978;Whitsett, Gray, & Bediz, 1979).…”

Section: Peromyscus Maniculatus Bairdi Have General Ly Not Been Obsermentioning

confidence: 99%

“…maniculatus juvenile settlement appears to be restricted largely as a result of male aggression toward juveniles (Fairbairn, 1977;Healey, 1967;Metzgar, 1979Metzgar, , 1980Mlhok, 1979; Sad lei r, 1965); while for other subspecies (Including ___. n__ ba.lr.d_D female aggression might be as important as or even more Important than, male aggression In limiting juvenile settlement (Ayer _ Whitsett, 1980;Enders, 1978;Fordham, 1971;Taltt, 1981;Whitsett et al, 1979).…”

Section: Peromyscus Maniculatus Bairdi Have General Ly Not Been Obsermentioning

confidence: 99%

See 1 more Smart Citation

Aggression and familiarity as factors in mate selection in Peromyscus polionotus and Peromyscus maniculatus / by Daniel George Webster.

Webster¹

1983

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Gonadal hormones and aggression toward juvenile conspecifics in prairie deer mice

Cited by 12 publications

References 25 publications

Role of female behavior in controlling population growth in mice

Role of female behavior in controlling population growth in mice

Syrian hamster males below an age threshold do not elicit aggression from unfamiliar adult males

Aggression and familiarity as factors in mate selection in Peromyscus polionotus and Peromyscus maniculatus / by Daniel George Webster.

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