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Article
P. LLoyd, Auteur ; E. E. Plaganyi, AuteurCapsule A recently developed observer-effects model gives better estimates than the survival model. Aims To compare the performance of the traditional survival model with that of an observer-effects model in estimating nesting success. Methods W[...]
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P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, AuteurThe breeding biology of the Namaqua Sandgrouse, Pterocles namaqua, was studied and its nesting success determined through the observation of 278 nests over four consecutive breeding seasons at Droegrond, Northern Cape Province, South Africa, The[...]
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P. LLoyd, Auteur
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P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, Auteur
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P. LLoyd, Auteur ; AJFK Craig, Auteur ; P. E. Hulley, Auteur ; M. F. Essop, Auteur ; P. Bloomer, Auteur ; T. M. Crowe, AuteurThe closely related Blackeyed Bulbul Pycnonotus barbatus, Cape Bulbul P. capensis and Redeyed Bulbul P. nigricans have parapatric to locally sympatric distributions within southern Africa. Extensive hybridization along narrow transition zones be[...]
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M. Gonzalez-Elorriaga, Auteur ; B. Molina, Auteur ; P. LLoyd, Auteur ; C. Bosque, Auteur
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D. Naiwanga, Auteur ; P. LLoyd, Auteur ; M. A. du Plessis, Auteur ; T. E. Martin, AuteurChoice of nest site has important consequences for nest survival. We examined nest-site characteristics relative to nest success in Karoo Prinias breeding in coastal dwarf shrubland, where high nest predation is the main cause of nest failure. I[...]
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P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, AuteurWe examined whether regular researcher Visits affected egg hatchability or nest predation for three ground-nesting bird species that incur high levels of nest predation, primarily by small mammals. Frequently Visited finch-lark (Eremopserix vert[...]
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D. Nalwanga, Auteur ; P. LLoyd, Auteur ; M. A. du Plessis, Auteur ; T. E. Martin, AuteurNest-site selection may vary adaptively among co-existing species as a result of competitive interactions among the species or in response to density-dependent nest predation. We examined nest-site characteristics and degree of partitioning amon[...]
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P. LLoyd, Auteur ; R. M. Little, Auteur ; T. M. Crowe, Auteur ; R. E. Simmons, AuteurThis study examines whether rainfall and its effects on food availability control the timing of migratory movements and breeding activity in the Namaqua Sandgrouse, Pterocles namaqua. Namaqua Sandgrouse exhibit a pattern of partial migration bet[...]
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P. LLoyd, AuteurI examined the nesting habits and success of 11 co-existing species in an arid, sub-tropical habitat in South Africa. Nesting success ranged from 3.5% to 75.4% among species, with predation by mammals and snakes accounting for 94% of nest losses[...]
