Siblicide provides food benefits for raptor chicks: Re-evaluating brood manipulation studies
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2002
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Animal Behaviour
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University of Cape Town
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Abstract
Implicit in most ideas explaining the siblicidal behaviour of nestlings that kill related siblings is that, by eliminating a competitor, surviving nestlings increase their share of food resources from the parents (e.g. O’Connor 1978; Stinson 1979; Simmons 1988; Mock et al. 1990; Mock & Parker 1997). However, in a detailed paper assessing the food benefits to pelicans (Pelicanusspp.), Ploger (1997) found that senior (surviving) nestlings did not receive more food once their nest mate had been eliminated.
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Simmons, R. E. (2002). Siblicide provides food benefits for raptor chicks: re-evaluating brood manipulation studies. Animal Behaviour, 64(6), F19-F24.