PREFERENCES OF FEMALE AMERICAN GOLDFINCHES (CARDUELIS-TRISTIS) FOR NATURAL AND ARTIFICIAL MALE TRAITS

被引:86
作者
JOHNSON, K
DALTON, R
BURLEY, N
机构
[1] Department of Ecology ,Ethology, and Evolution, University of Illinois, Champaign, IL 61821
基金
美国国家科学基金会;
关键词
AESTHETIC FEMALE CHOICE; AMERICAN GOLDFINCH; COLOR BAND; FUNCTIONAL FEMALE CHOICE;
D O I
10.1093/beheco/4.2.138
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
We conducted two experiments to determine mating preferences of female American goldfinches (Carduelis tristis). In the first experiment, females were allowed to choose among four naturally varying males. In the second, females chose among four males wearing either orange, blue, yellow, or no color bands. In experiment 1, females performed more courtship with males that had significantly brighter bills and were brighter overall. In experiment 2, females preferred males wearing orange bands over unbanded males. Blue-banded males ranked second and yellow third, but neither was preferred significantly more often than the unbanded males. A female's preference for a particular band color was weakly associated with her own bill and plumage measures; females with brighter throat feathers and yellower bills preferred orange bands to blue bands. The results suggest that female preferences for orange and yellow may be functional and that females may also have aesthetic preferences.
引用
收藏
页码:138 / 143
页数:6
相关论文
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