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Documents disponibles écrits par cet auteur (8)
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Article
Laurence A. Rasoamihaingo, Auteur ; Felix Razafindrajao, Auteur ; Lily-Arison Réné de Roland, Auteur ; Andrew J. Bamford, Auteur
Article
Andrew J. Bamford, Auteur ; The Seing Sam, Auteur ; Felix Razafindrajao, Auteur ; Hannah Robson, Auteur ; Lance G. Woolaver, Auteur ; Lily Arison Rene de Roland, AuteurOne of the rarest birds in the world, the Madagascar Pochard Aythya innotata was thought to be extinct until a small population was found in 2006. Little is known about this diving duck as it had not been studied prior to its decline and disappe[...]
Article
Ara Monadjem, Auteur ; Andrew J. Bamford, Auteur ; Maria Rasmussen, AuteurA total of 114 Marabou Stork chicks were ringed in the years 2003-2007 at the most southerly African breeding colony, Swaziland. Just one of 35 chicks fitted with colour rings was resighted by December 2007, while 17 of 79 chicks fitted with pat[...]
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Andrew J. Bamford, Auteur ; Ara Monadjem, Auteur ; Ian C. W. Hardy, AuteurCarcass utilisation by vultures may be constrained by the surrounding vegetation, as high vegetation densities may leave insufficient space for the vultures to take-off. We tested this by placing carcasses at 14 sites differing in density and he[...]
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Ara Monadjem, Auteur ; Andrew J. Bamford, AuteurA decline in breeding success with later laying dates throughout a nesting season is a widespread phenomenon in species living in environments with distinct seasonality, with evidence that some environmental correlate of timing is at least partl[...]
Article
Andrew J. Bamford, Auteur ; Ara Monadjem, Auteur ; Ian C. W. Hardy, AuteurThe African White-backed Vulture Gyps africanus is widely distributed across sub-Saharan Africa but populations are in decline. Loss of suitable habitat for foraging and breeding are among the most important causes, and future conservation will [...]
Article
Andrew J. Bamford, Auteur ; Maria Diekmann, Auteur ; Ara Monadjem, Auteur ; John Mendelsohn, AuteurThe Cape Vulture (Gyps coprotheres) is an obligate cliff-nesting vulture endemic to southern Africa. Its range and population size have declined markedly over the last century. Namibia has just one colony, located on the cliffs of the Waterberg [...]
Article
Temporal and sex-specific variation in growth rates of Marabou Stork Leptoptilos crumeniferus chicks
Ara Monadjem, Auteur ; Andrew J. Bamford, Auteur ; Ian C. W. Hardy, Auteur ; Jason K. Earnshaw, Auteur ; Elaine Franklin, Auteur ; Desire L. Dalton, Auteur ; Antoinette Kotze, AuteurDans Ostrich (81(2) 2010)The nesting success of Marabou Storks Leptoptilos crumeniferus breeding in north-eastern Swaziland is closely associated with rainfall, with nests started late in the season exposed to higher rainfall and showing lower success. This may be relat[...]
