Handling technique to increase the hyacinth macaw population (Anodorhynchus hyacinthinus) (Lalham, 1720): report of an experience in Pantanal, Brazil

Kuniy, Adriana Akemi; Figueiredo, Isabel Campos Salles; Guedes, Neiva Maria Robaldo

doi:10.1590/s1519-69842006000200021

Cited by 3 publications

(3 citation statements)

References 5 publications

(4 reference statements)

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“…Most cavities in hardwood trees were reused by Blue-throated Macaws at least once during the study period, while cavities in dead palms of Attalea phalerata were never reused before they fell naturally. Like other macaws [17] , [18] , [26] , Blue-throats were willing to nest in various kinds of nest boxes, but in all cases, they selected boxes placed in the same tree or in a tree few meters from where the pair had bred in previous seasons.…”

Section: Discussionmentioning

confidence: 99%

Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management

Berkunsky

Daniele²,

Kacoliris

et al. 2014

PLoS ONE

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Rediscovered in the wild twenty years ago, the breeding biology of wild Blue-throated Macaws remains largely unexplored, yet is essential to its effective conservation and recovery. Here, we analyse reproductive parameters in an intensively managed wild population of Blue-throated Macaws, providing the first data on the breeding biology of this critically endangered species. During the six-year study period, 2007–2012, the number of active breeding pairs either remained constant or decreased, depending on the site, and no new breeding pairs were discovered despite extensive searching. We documented nesting attempts in natural cavities in dead palms or live hardwoods, and artificial nest boxes. Egg-laying was concentrated during the end of dry season and the beginning of the wet season, August through December. Hatching failure was the greatest cause of egg losses. Half of the breeding attempts of Blue-throated Macaws produced at least one fledging, on average two, after a 85 days nestling period. An average of 4.3 nestlings per year fledged from all known wild nests combined. Each pair lost roughly 65% of its initial reproductive investment at each nesting attempt. In most successful nesting attempts of individualized pairs, a new nesting attempt was not detected the following year. All monitored breeding pairs showed high nest site fidelity, reusing hardwood-tree cavities and nest boxes. Our findings will aid conservation efforts by refining current actions and prompting new approaches towards the conservation and recovery of the Blue-throated Macaw.

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Section: Discussionmentioning

confidence: 99%

Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management

Berkunsky

Daniele²,

Kacoliris

et al. 2014

PLoS ONE

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“…A arara-azul (Anodorhynchus hyacinthinus) é um dos psitacídeos brasileiros na lista de aves ameaçadas de extinção, e desde 1990 vários estudos estão sendo realizados com a população do Pantanal, resultando em uma série de conhecimentos adquiridos sobre essa espécie em seu ambiente natural (GUEDES et al, 2006;KUNIY et al, 2006;PIZO et al, 2008). Pesquisas sobre o monitoramento sanitário são de grande importância para a manutenção da saúde dessa espécie em vida livre.…”

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Isolamento de Salmonella Braenderup em arara-azul (Anodorhynchus hyacinthinus)

et al. 2009

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“…We also provide evidences that the largest cavity nesters, such as the biggest hawks, might have limited nesting possibilities in mid-seccessional stage areas. Management strategies currently used to overcome these problems involve the distribution of nest boxes and the enlargement of the entrances of part of the available cavities (Kuniy et al 2006, Smallwood et al 2009, Olah et al 2014. In face of the evidences provided here, we suggest that these strategies might be considered for the preservation of the guild of Atlantic Forest cavity-nester birds in areas classified in mid-or lower successional stages.…”

Section: Discussionmentioning

confidence: 84%

Successional stage effect on the availability of tree cavities for cavity-nesting birds in an Atlantic Forest park from the state of São Paulo, Brazil

et al. 2017

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The availability of suitable cavities and substrate for hole construction can limit the populations of birds that rely on tree hollows to reproduce. Several studies have focused on the effects of types of habitats, and types of human disturbances on cavities abundance, but the effect of successional stages in the Atlantic Forest has been poorly addressed. In this study we aimed to compare the availability and biometric characteristics of tree cavities between primary and mid-successional stage sites in an Atlantic Forest area from southeastern Brazil. Based on nest characteristics described in the literature, we inferred if hollows present in secondary sites could harbor the large secondary-nester Atlantic Forest birds, with special attention to toucans and hawks. From September 2016 to April 2017, 96 cavities were sampled, 67 in the primary, and 29 in the secondary plots. Our data revealed that the communities of cavity-nester birds in mid-successional stage areas may be more affected by the reduced cavity availability than by cavities quality, as the number of cavities in these sites was less than half than that found in mature forests. We also provide evidences that the largest cavity nesters, such as the biggest hawks, might have limited nesting possibilities in mid-successional stage areas especially due to small cavity entrances, which may have important reflects in conservation strategies. Keywords

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Handling technique to increase the hyacinth macaw population (Anodorhynchus hyacinthinus) (Lalham, 1720): report of an experience in Pantanal, Brazil

Cited by 3 publications

References 5 publications

Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management

Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management

Isolamento de Salmonella Braenderup em arara-azul (Anodorhynchus hyacinthinus)

Successional stage effect on the availability of tree cavities for cavity-nesting birds in an Atlantic Forest park from the state of São Paulo, Brazil

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