Simultaneous age-dependent and age-independent sexual selection in the lekking black grouse (Lyrurus tetrix).

Abstract excerpt

Individuals' reproductive success is often strongly associated with their age, with typical patterns of early-life reproductive improvement and late-life senescence. These age-related patterns are due to the inherent trade-offs between life-history traits competing for a limited amount of resources available to the organisms. In males, such trade-offs are exacerbated by the resource requirements associated with...

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