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Spix’s Macaw Cyanopsitta spixii (Wagler, 1832) population viability analysis

Published online by Cambridge University Press:  06 July 2023

Ugo Vercillo Open the ORCID record for Ugo Vercillo [Opens in a new window] ,
Luiz Gustavo Oliveira-Santos ,
Marisa Novaes ,
Cromwell Purchase ,
Candice Purchase ,
Camile Lugarini ,
Ariane Ferreira Open the ORCID record for Ariane Ferreira [Opens in a new window] ,
Paulo De Marco ,
Vladislav Marcuk  and
Jose Luiz Franco
Ugo Vercillo*
Affiliation:
Center for Sustainable Development, University of Brasília, Brasília, Brazil BlueSky, Curaçá, Brazil
Luiz Gustavo Oliveira-Santos
Affiliation:
University of Mato Grosso do Sul, Campo Grande, Brazil
Marisa Novaes
Affiliation:
University of Goias, Goiânia, Brazil
Cromwell Purchase
Affiliation:
Association for the Conservation of Threatened Parrots, Rüdersdorf, Germany
Candice Purchase
Affiliation:
Association for the Conservation of Threatened Parrots, Rüdersdorf, Germany
Camile Lugarini
Affiliation:
Chico Mendes Institute for Biodiversity Conservation, Brasília, Brazil
Ariane Ferreira
Affiliation:
Chico Mendes Institute for Biodiversity Conservation, Brasília, Brazil
Paulo De Marco
Affiliation:
University of Goias, Goiânia, Brazil
Vladislav Marcuk
Affiliation:
Association for the Conservation of Threatened Parrots, Rüdersdorf, Germany
Jose Luiz Franco
Affiliation:
Center for Sustainable Development, University of Brasília, Brasília, Brazil BlueSky, Curaçá, Brazil
*
Corresponding author: Ugo Vercillo; Email: ugoeichler@gmail.com
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Summary

Spix’s Macaw Cyanopsitta spixii is one of the most endangered Neotropical Psittacidae species. Extinct in the wild in the year 2000, in June 2022 the first cohort of C. spixii was reintroduced to its original habitat. For a successful reintroduction of the species, it is necessary to examine the viability of the population against natural and external threats and the environmental requirements for success. Thus, this paper presents a “Population Viability Analysis” (PVA) for Spix’s Macaw. It used the Vortex and RangeShiftR software, biological and environmental data from a bibliographic survey, and information provided by the field team responsible for the reintroduction of the species, and who work directly with the species in captivity. We found that the minimum viable population (MVP) for reintroduction of the species is 20 individuals. However, considering the impact of disease, drought, hunting, and illegal trafficking, this population can only persist if the release of individuals from captivity occurs annually over the next 20 years combined with the reforestation of natural habitat to support population growth.

Keywords

PHVABrazilThreatened speciesanimal conservationcaatinga
Type
Research Article
Information
Bird Conservation International , Volume 33 , 2023 , e67
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of BirdLife International

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