Influence of kinship on helping behavior in Galápagos mockingbirds
dc.contributor.author | Curry, Robert L. | en_US |
dc.date.accessioned | 2006-09-11T18:19:16Z | |
dc.date.available | 2006-09-11T18:19:16Z | |
dc.date.issued | 1988-02 | en_US |
dc.identifier.citation | Curry, Robert L.; (1988). "Influence of kinship on helping behavior in Galápagos mockingbirds." Behavioral Ecology and Sociobiology 22(2): 141-152. <http://hdl.handle.net/2027.42/46884> | en_US |
dc.identifier.issn | 0340-5443 | en_US |
dc.identifier.issn | 1432-0762 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/46884 | |
dc.description.abstract | The social organization of the Galápagos mockingbird ( Nesomimus parvulus ) in unusual in that groups frequently include more than one breeding pair (plural breeding), and helping behavior is flexible: some birds neither breed nor help, while others do both. To investigate the influence of kinship on helping behavior, I categorized each bird as a helper or non-helper with respect to each nest within its group where it had an opportunity to help. The incidence of helping varied with relatedness: more birds helped when nestlings available to be fed were close relatives than when not. This result was independent of a higher incidence of helping among males than among females and of variation with age among males. Proportionally more nonbreeding than breeding males helped, but breeding and nonbreeding females helped equally infrequently; breeders helped most often after their own nests failed. The incidence of helping was highest among birds with opportunities to feed offspring of breeders that had fed the potential helper as a nestling, suggesting a mechanism for kin discrimination based on associative learning. Juveniles with opportunities to choose among alternative recipients preferentially fed closely related nestlings, but insufficient information was available to determine if adults also did so. Kinship did not influence the rate at which nestlings were fed by helpers. Juveniles fed nestlings at lower rates than did adult helpers, but helping effort was otherwise unaffected by age, sex, or relatedness. Limitation of help to former feeders functions as a mechanism for directing aid to relatives in a plural breeding system where degrees of kinship vary among potential recipients within the same group. | en_US |
dc.format.extent | 1335360 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Springer-Verlag | en_US |
dc.subject.other | Zoology | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Behavioural Sciences | en_US |
dc.title | Influence of kinship on helping behavior in Galápagos mockingbirds | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Biology, The University of Michigan, 48109-1048, Ann Arbor, MI, USA; Archbold Biological Station, 33852, Lake Placid, FL, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/46884/1/265_2004_Article_BF00303549.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF00303549 | en_US |
dc.identifier.source | Behavioral Ecology and Sociobiology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.