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Nest-dwelling ectoparasites reduce begging effort in Pied Flycatcher Ficedula hypoleuca nestlings

AutorMoreno-Rueda, G.; Redondo, T. ; Ochoa, David; Camacho, Carlos ; Canal, David ; Potti, Jaime ; Burthe, S.
Palabras claveBegging
Fecha de publicación2016
EditorBlackwell Publishing
CitaciónIbis 158: 881- 886 (2016)
ResumenParasitized nestlings might be expected to increase begging effort to obtain additional resources to compensate for those sequestered by their parasites. However, begging is costly and chicks harbouring parasites may find it more difficult to attain high begging levels. Consequently, we predicted that, for the same level of nutritional need, nestlings that are parasitized will invest less in begging than those that are not parasitized. We tested this prediction by measuring begging in Pied Flycatcher Ficedula hypoleuca nestlings parasitized with haematophagous mites Dermanyssus gallinoides and Dermanyssus gallinae and blowfly larvae Protocalliphora azurea, and subjected to different levels of food deprivation in order to control for short-term nutritional need. Nestlings from nests with ectoparasites spent less time begging than those from nests without parasites, especially when very hungry, although there was no association with latency to beg or begging intensity. Our results suggest that time invested in begging may indicate not only the level of need, but also nestling parasitism status.
Identificadoresdoi: 10.1111/ibi.12394
issn: 1474-919X
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