Reproductive parameters of the Turquoise-fronted Parrot (Amazona aestiva) in the dry Chaco forest
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چکیده
منابع مشابه
Nest-site fidelity and cavity reoccupation by Blue-fronted Parrots Amazona aestiva in the dry Chaco of Argentina
The frequency of cavity reoccupation in secondary cavity nesters depends on several factors including quality of cavities, degree of nest-site fidelity, competition with other cavity nesters and availability of new cavities. Blue-fronted Parrots Amazona aestiva are secondary cavity nesters that live in subtropical forests and savannas of central South America. We examined the characteristics of...
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Parrots kept in zoos and private households often develop psychological and behavioural disorders. Despite knowing that such disorders have a multifactorial aetiology and that chronic stress is involved, little is known about their development mainly due to a poor understanding of the parrots' physiology and the lack of validated methods to measure stress in these species. In birds, blood corti...
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On current knowledge, it has not been possible to determine the sex of Blue-fronted Amazons (Amazona aestiva) in the hand, as males and females were thought not to differ in the colour of plumage or size. We used discriminant function analysis to develop equations for determining the sex of Blue-fronted Amazons using in-hand measurements. We took sevenmeasurements of size and onemeasure of plum...
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The blue-fronted Amazon (Amazona aestiva) is a widely distributed Neotropical parrot and one of the most captured parrots in nature to supply the illegal trade of wild animals. The objectives of the present study were to analyze the genetic structure of A. aestiva to identify management units and support conservation planning and to verified if A. aestiva populations have undergone a recent bot...
متن کاملNest survival and predation in Blue-fronted Parrots Amazona aestiva: effects of nesting behaviour and cavity characteristics
including intraand interspecific interactions (i.e. competition, parasitism and predation), parental condition and behaviour, and weather (Newton 1998, Lima 2009). Temporal patterns, such as the date at which the nesting attempt started (i.e. time of breeding) or the stage of the nesting cycle (i.e. nest age), often influence nest survival (Grant et al. 2005, Lantz & Conway 2009, Nest survival ...
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ژورنال
عنوان ژورنال: Avian Conservation and Ecology
سال: 2017
ISSN: 1712-6568
DOI: 10.5751/ace-01071-120206