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Sex-specific associative learning cues and inclusive fitness benefits in the Seychelles warbler

Richardson, David LU ; Burke, T and Komdeur, J (2003) In Journal of evolutionary biology 16(5). p.854-861
Abstract
In cooperative, breeding vertebrates, indirect fitness benefits would be maximized by subordinates that accurately assess their relatedness to group offspring and preferentially help more closely related kin. In the Seychelles warbler (Acrocephalus sechellensis), we found a positive relationship between subordinate-nestling kinship (determined using microsatellite marker genotypes) and provisioning rates, but only for female subordinates. Female subordinates that helped were significantly more related to the nestlings than were nonhelpers, and the decision to help appears to be based on associative learning cues. High levels of female infidelity means that subordinates cannot trust their legitimacy through the male line, consequently they... (More)
In cooperative, breeding vertebrates, indirect fitness benefits would be maximized by subordinates that accurately assess their relatedness to group offspring and preferentially help more closely related kin. In the Seychelles warbler (Acrocephalus sechellensis), we found a positive relationship between subordinate-nestling kinship (determined using microsatellite marker genotypes) and provisioning rates, but only for female subordinates. Female subordinates that helped were significantly more related to the nestlings than were nonhelpers, and the decision to help appears to be based on associative learning cues. High levels of female infidelity means that subordinates cannot trust their legitimacy through the male line, consequently they appear to use the continued presence of the primary female, but not the primary male, as a reliable cue to determine when to feed nestlings. By using effective discrimination, female subordinates are able to maximize the indirect benefits gained within. a cooperative breeding system otherwise driven primarily by direct breeding benefits. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
sex-specific cues, Seychelles warbler, kinship, indirect fitness, helpers, associative learning, cooperative breeding
in
Journal of evolutionary biology
volume
16
issue
5
pages
854 - 861
publisher
John Wiley & Sons
external identifiers
  • wos:000185203300008
  • pmid:14635900
  • scopus:0042740680
ISSN
1420-9101
DOI
10.1046/j.1420-9101.2003.00592.x
language
English
LU publication?
yes
id
9cd51fbd-ed62-4944-8cf0-30078bf0fe63 (old id 301260)
date added to LUP
2007-09-20 15:44:33
date last changed
2018-10-03 10:24:00
@article{9cd51fbd-ed62-4944-8cf0-30078bf0fe63,
  abstract     = {In cooperative, breeding vertebrates, indirect fitness benefits would be maximized by subordinates that accurately assess their relatedness to group offspring and preferentially help more closely related kin. In the Seychelles warbler (Acrocephalus sechellensis), we found a positive relationship between subordinate-nestling kinship (determined using microsatellite marker genotypes) and provisioning rates, but only for female subordinates. Female subordinates that helped were significantly more related to the nestlings than were nonhelpers, and the decision to help appears to be based on associative learning cues. High levels of female infidelity means that subordinates cannot trust their legitimacy through the male line, consequently they appear to use the continued presence of the primary female, but not the primary male, as a reliable cue to determine when to feed nestlings. By using effective discrimination, female subordinates are able to maximize the indirect benefits gained within. a cooperative breeding system otherwise driven primarily by direct breeding benefits.},
  author       = {Richardson, David and Burke, T and Komdeur, J},
  issn         = {1420-9101},
  keyword      = {sex-specific cues,Seychelles warbler,kinship,indirect fitness,helpers,associative learning,cooperative breeding},
  language     = {eng},
  number       = {5},
  pages        = {854--861},
  publisher    = {John Wiley & Sons},
  series       = {Journal of evolutionary biology},
  title        = {Sex-specific associative learning cues and inclusive fitness benefits in the Seychelles warbler},
  url          = {http://dx.doi.org/10.1046/j.1420-9101.2003.00592.x},
  volume       = {16},
  year         = {2003},
}