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Sex allocation in response to paternal attractiveness in the zebra finch

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Sex allocation in response to paternal attractiveness in the zebra finch. / Rutstein, A N ; Gorman, H E ; Arnold, K E ; Gilbert, L ; Orr, K J ; Adam, A ; Nager, R ; Graves, J A .

In: Behavioral Ecology, Vol. 16, No. 4, 2005, p. 763-769.

Research output: Contribution to journalArticle

Harvard

Rutstein, AN, Gorman, HE, Arnold, KE, Gilbert, L, Orr, KJ, Adam, A, Nager, R & Graves, JA 2005, 'Sex allocation in response to paternal attractiveness in the zebra finch', Behavioral Ecology, vol. 16, no. 4, pp. 763-769. https://doi.org/10.1093/beheco/ari052

APA

Rutstein, A. N., Gorman, H. E., Arnold, K. E., Gilbert, L., Orr, K. J., Adam, A., ... Graves, J. A. (2005). Sex allocation in response to paternal attractiveness in the zebra finch. Behavioral Ecology, 16(4), 763-769. https://doi.org/10.1093/beheco/ari052

Vancouver

Rutstein AN, Gorman HE, Arnold KE, Gilbert L, Orr KJ, Adam A et al. Sex allocation in response to paternal attractiveness in the zebra finch. Behavioral Ecology. 2005;16(4):763-769. https://doi.org/10.1093/beheco/ari052

Author

Rutstein, A N ; Gorman, H E ; Arnold, K E ; Gilbert, L ; Orr, K J ; Adam, A ; Nager, R ; Graves, J A . / Sex allocation in response to paternal attractiveness in the zebra finch. In: Behavioral Ecology. 2005 ; Vol. 16, No. 4. pp. 763-769.

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@article{4bdf45c10ddd449ba889fe003f15b17f,
title = "Sex allocation in response to paternal attractiveness in the zebra finch",
abstract = "Females mated to attractive males are predicted to produce male-biased broods. Previous studies on zebra finches, Taeniopygia guttata, in which colored leg rings were used to alter male attractiveness, support this hypothesis. However, because molecular sexing techniques were not available, it was not known when during development this bias arose. Also, because both attractive (red-ringed) and unattractive (green-ringed) males were within the same aviary, assortative mating between treatments may have confounded the results. Using two different experimental designs, we tested whether the sex ratio of zebra finch eggs and chicks differed in response to paternal ring color whilst controlling for assortative mating between treatments. In the aviary experiment, birds could interact socially, but all males in an aviary bad the same leg ring color. In the cage experiment, each female was randomly assigned a red- or green-ringed mate, thus also eliminating assortative mating within treatments. Offspring were sexed based on plumage or using a molecular method. The sex ratio at laying did not differ between treatments in either the aviary (n = 313 eggs) or cage (n = 151 eggs) experiments, suggesting that female zebra finches do not manipulate the primary sex ratio in response to their mate's ring color. However, in the cage experiment we found greater male embryonic mortality, in the attractive group, Which resulted in a female-biased sex ratio at sexual maturity, that is, in the opposite direction to that found in previous studies. Possible explanations for the disparity between our results and those of previous studies are considered.",
keywords = "attractiveness, differential mortality, sex ratio, Taeniopygia guttata, zebra finch, TIT PARUS-MAJOR, RED-WINGED BLACKBIRDS, GREAT REED WARBLERS, RATIO ADJUSTMENT, TAENIOPYGIA-GUTTATA, BILL COLOR, ACROCEPHALUS-ARUNDINACEUS, DIFFERENTIAL-ALLOCATION, MATERNAL TESTOSTERONE, AGELAIUS-PHOENICEUS",
author = "Rutstein, {A N} and Gorman, {H E} and Arnold, {K E} and L Gilbert and Orr, {K J} and A Adam and R Nager and Graves, {J A}",
year = "2005",
doi = "10.1093/beheco/ari052",
language = "English",
volume = "16",
pages = "763--769",
journal = "Behavioral Ecology",
issn = "1045-2249",
publisher = "Oxford University Press",
number = "4",

}

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TY - JOUR

T1 - Sex allocation in response to paternal attractiveness in the zebra finch

AU - Rutstein, A N

AU - Gorman, H E

AU - Arnold, K E

AU - Gilbert, L

AU - Orr, K J

AU - Adam, A

AU - Nager, R

AU - Graves, J A

PY - 2005

Y1 - 2005

N2 - Females mated to attractive males are predicted to produce male-biased broods. Previous studies on zebra finches, Taeniopygia guttata, in which colored leg rings were used to alter male attractiveness, support this hypothesis. However, because molecular sexing techniques were not available, it was not known when during development this bias arose. Also, because both attractive (red-ringed) and unattractive (green-ringed) males were within the same aviary, assortative mating between treatments may have confounded the results. Using two different experimental designs, we tested whether the sex ratio of zebra finch eggs and chicks differed in response to paternal ring color whilst controlling for assortative mating between treatments. In the aviary experiment, birds could interact socially, but all males in an aviary bad the same leg ring color. In the cage experiment, each female was randomly assigned a red- or green-ringed mate, thus also eliminating assortative mating within treatments. Offspring were sexed based on plumage or using a molecular method. The sex ratio at laying did not differ between treatments in either the aviary (n = 313 eggs) or cage (n = 151 eggs) experiments, suggesting that female zebra finches do not manipulate the primary sex ratio in response to their mate's ring color. However, in the cage experiment we found greater male embryonic mortality, in the attractive group, Which resulted in a female-biased sex ratio at sexual maturity, that is, in the opposite direction to that found in previous studies. Possible explanations for the disparity between our results and those of previous studies are considered.

AB - Females mated to attractive males are predicted to produce male-biased broods. Previous studies on zebra finches, Taeniopygia guttata, in which colored leg rings were used to alter male attractiveness, support this hypothesis. However, because molecular sexing techniques were not available, it was not known when during development this bias arose. Also, because both attractive (red-ringed) and unattractive (green-ringed) males were within the same aviary, assortative mating between treatments may have confounded the results. Using two different experimental designs, we tested whether the sex ratio of zebra finch eggs and chicks differed in response to paternal ring color whilst controlling for assortative mating between treatments. In the aviary experiment, birds could interact socially, but all males in an aviary bad the same leg ring color. In the cage experiment, each female was randomly assigned a red- or green-ringed mate, thus also eliminating assortative mating within treatments. Offspring were sexed based on plumage or using a molecular method. The sex ratio at laying did not differ between treatments in either the aviary (n = 313 eggs) or cage (n = 151 eggs) experiments, suggesting that female zebra finches do not manipulate the primary sex ratio in response to their mate's ring color. However, in the cage experiment we found greater male embryonic mortality, in the attractive group, Which resulted in a female-biased sex ratio at sexual maturity, that is, in the opposite direction to that found in previous studies. Possible explanations for the disparity between our results and those of previous studies are considered.

KW - attractiveness

KW - differential mortality

KW - sex ratio

KW - Taeniopygia guttata

KW - zebra finch

KW - TIT PARUS-MAJOR

KW - RED-WINGED BLACKBIRDS

KW - GREAT REED WARBLERS

KW - RATIO ADJUSTMENT

KW - TAENIOPYGIA-GUTTATA

KW - BILL COLOR

KW - ACROCEPHALUS-ARUNDINACEUS

KW - DIFFERENTIAL-ALLOCATION

KW - MATERNAL TESTOSTERONE

KW - AGELAIUS-PHOENICEUS

U2 - 10.1093/beheco/ari052

DO - 10.1093/beheco/ari052

M3 - Article

VL - 16

SP - 763

EP - 769

JO - Behavioral Ecology

T2 - Behavioral Ecology

JF - Behavioral Ecology

SN - 1045-2249

IS - 4

ER -