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Ecology Letters (2011) 14: 1254–1262
AbstractTheoretical work suggests that both negative frequency‐dependent payoffs and state‐dependent payoffs can lead to individual variation in behavioural plasticity. We investigated the roles of both frequency‐ and state‐dependence on the occurrence of individual variation in behavioural plasticity in a series of experiments where we manipulated perceived predation...
Migrant birds face a choice where to spend the winter. Presumably there is a trade-off between migration distance (costs) and the quality of the wintering site (benefits). Wintering site fidelity is often high and increases with age. Hypotheses to explain such a pattern assume that wintering site choice maximizes fitness. We compared wintering site choice and age-dependent site fidelity in Eurasian...
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