Unrelated helpers neither signal contributions nor suffer retribution in chestnut-crowed babblers

Nomano, Fumiaki Y., Browning, Lucy E., Savage, James L., Rollins, Lee A., Griffith, Simon C. and Russell, Andrew F. 2015, Unrelated helpers neither signal contributions nor suffer retribution in chestnut-crowed babblers, Behavioral ecology, vol. 26, no. 4, pp. 986-995.

Attached Files
Name Description MIMEType Size Downloads

Title Unrelated helpers neither signal contributions nor suffer retribution in chestnut-crowed babblers
Author(s) Nomano, Fumiaki Y.
Browning, Lucy E.
Savage, James L.
Rollins, Lee A.ORCID iD for Rollins, Lee A. orcid.org/0000-0002-3279-7005
Griffith, Simon C.
Russell, Andrew F.
Journal name Behavioral ecology
Volume number 26
Issue number 4
Start page 986
End page 995
Total pages 10
Publisher Oxford University Press
Place of publication Oxford, Eng.
Publication date 2015-01-01
ISSN 1045-2249
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Behavioral Sciences
Life Sciences & Biomedicine - Other Topics
Environmental Sciences & Ecology
direct benefits
Summary Alloparental care by distant/nonkin that accrue few kin-selected benefits requires direct fitness benefits to evolve. The pay-to-stay hypothesis, under which helpers contribute to alloparental care to avoid being expelled from the group by dominant individuals, offers one such explanation. Here, we investigated 2 key predictions derived from the pay-to-stay hypothesis using the chestnut-crowed babbler, Pomatostomus ruficeps, a cooperatively breeding bird where helping by distant/nonkin is common (18% of nonbreeding helpers). First, we found no indication that distant or nonkin male helpers advertised their contributions toward the primary male breeder. Helpers unrelated to both breeders were unresponsive to provisioning rates of the dominant male, whereas helpers that were related to either the breeding male or to both members of the pair were responsive. In addition, unrelated male helpers did not advertise their contributions to provisioning by disproportionately synchronizing their provisioning events with those of the primary male breeder or by provisioning nestlings immediately after him. Second, no helper, irrespective of its relatedness to the dominant breeders, received aggression when released back into the group following temporary removal for 1-2 days. We therefore find no compelling support for the hypothesis that pay-to-stay mechanisms account for the cooperative behavior of unrelated males in chestnut-crowned babblers.
Language eng
Field of Research 060201 Behavioural Ecology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Oxford University Press
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075761

Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 15 times in TR Web of Science
Scopus Citation Count Cited 16 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 325 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Wed, 11 Nov 2015, 16:13:46 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.