Browsing by Author "Hawn, Amanda Thacher"
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- ItemOpen AccessThe importance of a double standard : inter sexual differences and cooperative breeding in the green Woodhoopoe(2003) Hawn, Amanda ThacherThe findings of this study support several ideas relevant to the interpretation of evolutionary patterns among cooperative species. First, the reproductive costs of delaying reproduction may not be as high as previously assumed in some cooperative species if, as in females of this species, birds delaying breeding tend to live longer than birds reproducing at maturity. Second, as demonstrated by inter-sexual difli:rences in the reaction of birds to varied levels of breeder saturation, behavioral responses to ecological constraints may depend on life-history pattem.