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Title

Breeding behaviour of the Bearded vulture Gypaetus barbatus: minimal sexual differences in parental activities

AuthorsMargalida, Antoni ; Bertran, Joan
Issue Date2000
PublisherBritish Ornithologists' Union
John Wiley & Sons
CitationIbis 142(2): 225-234 (2000)
AbstractMonogamous biparental care is expected to occur when opportunities for extra‐pair copulations are rare, and both parents are required to raise the chick. Bearded Vultures Gypaetus barbatus fulfill these conditions. Contributions by male and female Bearded Vulture to nest building, nest defence, incubation, nest attendance and chick feeding were studied over five years in eight pairs from the Pyrenees [Catalonia, northeast Spain). Overall, the sexes show equal investment, although the degree of parental effort developed differs depending on the specific activities. During pre‐laying, males were significantly more active than females in supplying material to the nest and in territorial defence behaviour, which increased (in both sexes) as the season advanced. Incubation was shared equally both by day and by night. During chick‐rearing, the nest was attended by both sexes and the presence of both parents at the nest decreased in parallel with the growth of the chick. Activities related to chick feeding were also equally divided. These results are discussed in the context of female selection of mates and the particular ecology of this species.
Publisher version (URL)https://doi.org/10.1111/j.1474-919X.2000.tb04862.x
URIhttp://hdl.handle.net/10261/179041
DOI10.1111/j.1474-919X.2000.tb04862.x
ISSN0019-1019
E-ISSN1474-919X
Appears in Collections:(IREC) Artículos
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