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High Parasite Load in House Finches (Carpodacus mexicanus) is Correlated with Reduced Expression of a Sexually Selected Trait
Independent of age or geographic variation, males of many species of birds exhibit dramatic variation in the expression of elaborate secondary sexual characters. "Good genes" models of sexualExpand
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Ecological Constraints and the Evolution of Hormone‐Behavior Interrelationships a
Vertebrates show a diverse array of social behaviors. Equally complex are the mechanisms by which these behavioral patterns are regulated by hormones and the effects of behavioral interactions onExpand
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Parasites and Female Choice in the Ring-necked Pheasant
The Hamilton and Zuk hypothesis is based on several assumptions: 1) The parasites adversely affect host fitness, and susceptibility to parasites is heritable. 2) Expression of secondary sexualExpand
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MEXICANUS) IS CORRELATED WITH REDUCED EXPRESSION
Independent of age or geographic variation, males of many species of birds exhibit dramatic variation in the expression of elaborate secondary sexual characters. "Good genes" models of sexualExpand
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Pheasant spurs out of fashion
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The Breeding Biology of Captive Black-Headed Ducks and the Behavior of Their Young
The behavior patterns of captive Black-headed Ducks (Heteronetta atricapilla) at the Wildfowl Trust, Slimbridge, Gloucester, were studied for three consecutive breeding seasons to investigate theExpand
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Testosterone and Immunosuppression in Vertebrates: Implications for Parasite-Mediated Sexual Selection
Females of many species prefer to mate with males that have the fewest parasites (Moller, 1990; Read,1990; Kirkpatrick and Ryan, 1991; Clayton, 1991; McLennen and Brooks, 1991; Clayton et al., 1992;Expand
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