Food availability modulates differences in parental effort between dispersing and philopatric birds

Charlotte Récapet, Pierre Bize and Blandine Doligez

Behavioral Ecology, 2017, vol. 28, issue 3, 688-697

Abstract: Lay Summary Density-dependent differences between dispersing and non-dispersing birds in mass and fledging success were observed in control but not food-supplemented nests. Density-dependent differences in oxidative state were however not altered by the supplementation. Our results support the hypothesis that food availability is responsible for some of the density-dependent differences previously observed in this natural population between dispersing and non-dispersing individuals but other mechanisms are also involved in these differences.

Keywords: breeding density; dispersal; habitat quality; oxidative stress; parental care; reproductive output (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (1)

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