Heterogeneity in reproductive success explained by individual differences in bite rate and mass change

Uriel Gélin, Graeme Coulson and Marco Festa-Bianchet

Behavioral Ecology, 2016, vol. 27, issue 3, 777-783

Abstract: Lay Summary Current reproduction should reduce energy available for future growth and reproduction. However, large individuals able to acquire more resources may not suffer any cost of reproduction. Resource acquisition depends on food intake, but the effects of individual foraging rate on mass gain and reproductive success in wild mammalian herbivore are unknown. Kangaroo females with faster bite rates had greater mass gain and offspring survival, and probably higher fitness.

Keywords: body condition; environmental effects; foraging; Macropus giganteus; reproductive costs; trade-off (search for similar items in EconPapers)
Date: 2016
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