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Brood sex ratio adjustment in collared flycatchers (Ficedula albicollis): results differ between populations

Rosivall, Balázs LU ; Török, J; Hasselquist, Dennis LU and Bensch, Staffan LU (2004) In Behavioral Ecology and Sociobiology 56(4). p.346-351
Abstract
Recently, a number of studies have found adaptive brood sex ratio (BSR) manipulation in birds. The reason for such manipulations is thought to be the different reproductive value of male and female nestlings. Several studies have found that parental quality and food supply can affect BSR, however results are sometimes inconsistent between species and populations. We investigated BSR patterns in a Hungarian population of Collared Flycatchers (Ficedula albicollis) and compared the results with those obtained in a previous study of the same species in Sweden. We found two significant differences. First, the male forehead patch size, a heritable, sexually selected trait, affected the brood sex ratio in the Swedish population, but not in our... (More)
Recently, a number of studies have found adaptive brood sex ratio (BSR) manipulation in birds. The reason for such manipulations is thought to be the different reproductive value of male and female nestlings. Several studies have found that parental quality and food supply can affect BSR, however results are sometimes inconsistent between species and populations. We investigated BSR patterns in a Hungarian population of Collared Flycatchers (Ficedula albicollis) and compared the results with those obtained in a previous study of the same species in Sweden. We found two significant differences. First, the male forehead patch size, a heritable, sexually selected trait, affected the brood sex ratio in the Swedish population, but not in our Hungarian study population. This difference might be a consequence of the different information content of the forehead patch size in the two populations. Second, a seasonal shift in BSR (more sons late in the season) was observed in the Hungarian, but not in the Swedish population. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Behavioral Ecology and Sociobiology
volume
56
issue
4
pages
346 - 351
publisher
Springer
external identifiers
  • wos:000223017400005
  • scopus:4243108400
ISSN
1432-0762
DOI
10.1007/s00265-004-0796-3
language
English
LU publication?
yes
id
969a3868-3cea-4535-86d4-b30122af0858 (old id 136952)
date added to LUP
2007-06-25 13:52:48
date last changed
2017-06-18 04:25:15
@article{969a3868-3cea-4535-86d4-b30122af0858,
  abstract     = {Recently, a number of studies have found adaptive brood sex ratio (BSR) manipulation in birds. The reason for such manipulations is thought to be the different reproductive value of male and female nestlings. Several studies have found that parental quality and food supply can affect BSR, however results are sometimes inconsistent between species and populations. We investigated BSR patterns in a Hungarian population of Collared Flycatchers (Ficedula albicollis) and compared the results with those obtained in a previous study of the same species in Sweden. We found two significant differences. First, the male forehead patch size, a heritable, sexually selected trait, affected the brood sex ratio in the Swedish population, but not in our Hungarian study population. This difference might be a consequence of the different information content of the forehead patch size in the two populations. Second, a seasonal shift in BSR (more sons late in the season) was observed in the Hungarian, but not in the Swedish population.},
  author       = {Rosivall, Balázs and Török, J and Hasselquist, Dennis and Bensch, Staffan},
  issn         = {1432-0762},
  language     = {eng},
  number       = {4},
  pages        = {346--351},
  publisher    = {Springer},
  series       = {Behavioral Ecology and Sociobiology},
  title        = {Brood sex ratio adjustment in collared flycatchers (Ficedula albicollis): results differ between populations},
  url          = {http://dx.doi.org/10.1007/s00265-004-0796-3},
  volume       = {56},
  year         = {2004},
}