Skip to main content

Social living mitigates the costs of a chronic illness in a cooperative carnivore

Author(s): Almberg, E. S.; Cross, P. C.; Dobson, Andrew P.; Smith, D. W.; Metz, M. C.; et al

To refer to this page use:
Abstract: Infection risk is assumed to increase with social group size, and thus be a cost of group living. We assess infection risk and costs with respect to group size using data from an epidemic of sarcoptic mange (Sarcoptes scabiei) among grey wolves (Canis lupus). We demonstrate that group size does not predict infection risk and that individual costs of infection, in terms of reduced survival, can be entirely offset by having sufficient numbers of pack-mates. Infected individuals experience increased mortality hazards with increasing proportions of infected pack-mates, but healthy individuals remain unaffected. The social support of group hunting and territory defence are two possible mechanisms mediating infection costs. This is likely a common phenomenon among other social species and chronic infections, but difficult to detect in systems where infection status cannot be measured continuously over time.
Publication Date: Jul-2015
Electronic Publication Date: 18-May-2015
Citation: Almberg, E. S., Cross, P. C., Dobson, A. P., Smith, D. W., Metz, M. C., Stahler, D. R., Hudson, PJ. (2015). Social living mitigates the costs of a chronic illness in a cooperative carnivore. Ecology Letters, 18 (7), 660 - 667. doi:10.1111/ele.12444
DOI: doi:10.1111/ele.12444
ISSN: 1461-023X
Pages: 660 - 667
Type of Material: Journal Article
Journal/Proceeding Title: Ecology Letters
Version: Final published version. This is an open access article.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.