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Titre :
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High occurrence of polygynous trios in a dense Egyptian Vulture Neophron percnopterus population (2025)
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Auteurs :
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Ivaylo D. Angelov, Auteur ;
Maia Sarrouf Willson, Auteur ;
Rabab Al Lawati, Auteur ;
Antonia Vegh, Auteur
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Type de document :
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Article
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Dans :
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Ringing & Migration (40(1) June, 2025)
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Article en page(s) :
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59-63
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Mots-clés:
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Oman
;
camera trap
;
incubation
;
individual identification
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Résumé :
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Field surveys and camera traps close to nest sites were used to study the nesting biology of a dense population of Egyptian Vultures Neophron percnopterus on Masirah Island, Oman. Camera-trap images from one nest revealed the laying of a third egg in a nest and incubation of the clutch by three individually identifiable adults (a male and two females). Another male and two females were photographed copulating in a different nest. Behavioural observations revealed the presence of five more probable polygynous trios and another trio with unknown sex composition. A surplus of adult non-breeders was recorded at the traditional main communal roost. The high occurrence of polygynous trios within a dense population, combined with an abundance of non-territorial Egyptian Vultures, may be explained by habitat saturation in a species exhibiting a tendency for natal dispersal that is inversely density dependent.
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En ligne :
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https://doi.org/10.1080/03078698.2025.2559118
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