Show simple item record

dc.contributor.authorCreel, Scott
dc.date.accessioned2022-06-06T18:15:38Z
dc.date.available2022-06-06T18:15:38Z
dc.date.issued2022-03
dc.identifier.citationCreel, S. (2022). A retrospective view of early research on dominance, stress and reproduction in cooperatively breeding carnivores. Hormones and Behavior, 140, 105119.en_US
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/16810
dc.description.abstractSocial carnivores have been central in studies of cooperative breeding, and research using noninvasive methods to examine behavioral and endocrine mechanisms of reproductive suppression started in the 1980s with dwarf mongooses in Serengeti National Park. Here, I synthesize the methods, findings and limitations of a research program that examined relationships between social dominance, age, mass, aggression, mating, gonadal steroids, glucocorticoids and reproduction in female and male dwarf mongooses, African wild dogs and wolves. Infanticide is a reliable backstop for reproductive suppression in females, and reproduction is energetically costly in these species. These conditions favor hypothalamic – pituitary – gonadal (HPG) adaptations that reduce the fertility of subordinate females to avoid the cost of producing doomed offspring. Infanticide also favors close synchronization of reproduction when subordinate females do become pregnant. In males, infanticide is a less reliable backstop and reproduction is less costly, so direct effects of subordination on fertility are less pronounced. Age is a strong predictor of social dominance in these species, but the evolutionary reason for this is not clear. In dwarf mongooses and wild dogs, alpha females were never deposed by younger packmates, but alpha males were: this difference is also not understood. Patterns of reproduction supported models predicting that alphas are less likely to share reproduction when the fitness costs of reproduction are high, when the fitness expected for dispersers is low, and with young subordinates to whom they are more closely related. Correlations between dominance and adrenal glucocorticoid concentrations varied between species and sexes, but did not support the hypothesis that chronic stress causes reproductive suppression.en_US
dc.language.isoen_USen_US
dc.publisherElsevier BVen_US
dc.rightsThis manuscript version is made available under the CC-BY-NC-ND 4.0 license https:// creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.rights.urihttps:// creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleA retrospective view of early research on dominance, stress and reproduction in cooperatively breeding carnivoresen_US
dc.typeArticleen_US
mus.citation.extentfirstpage1en_US
mus.citation.extentlastpage24en_US
mus.citation.journaltitleHormones and Behavioren_US
mus.citation.volume140en_US
mus.identifier.doihttps://doi.org/10.1016/j.yhbeh.2022.105119en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentEcology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage21en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://
creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as This manuscript version is made available under the CC-BY-NC-ND 4.0 license https:// creativecommons.org/licenses/by-nc-nd/4.0/

MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.