Gender and viability selection on morphology in fledgling pied flycatchers
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چکیده
منابع مشابه
Gender and viability selection on morphology in fledgling pied flycatchers.
Until recently, analyses of gender-dependent differences in viability selection and the ontogeny of sexual size dimorphism have been plagued by difficulties in determining the sex of nestling birds on the basis of morphology. Recently, this problem was overcome using molecular sex identification to report for the first time body-size-mediated antagonistic selection on the viability of male and ...
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Traditional explanations for the negative fitness consequences of parasitism have focused on the direct pathogenic effects of infectious agents. However, because of the high selection pressure by the parasites, immune defences are likely to be costly and trade off with other fitness-related traits, such as reproductive effort. In a field experiment, we immunized breeding female flycatchers with...
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ژورنال
عنوان ژورنال: Molecular Ecology
سال: 2002
ISSN: 0962-1083,1365-294X
DOI: 10.1046/j.1365-294x.2002.01545.x