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Vol. 63, 2024
(update: 2024.12.18)
Historical Occupancy of the
Yellow-green Grosbeak Caryothraustes
canadensis (Aves, Cardinalidae) in the Far North of the Atlantic
Forest
Randson
Modesto Coêlho da Paixão1,2,3,* ,
Carlos Salustio-Gomes2,3, Guilherme Santos Toledo-Lima4,
Andros T. Gianuca3,5, and Mauro Pichorim2,3
doi:doi:10.6620/ZS.2024.63-32
1Instituto
Chico Mendes de Conservação da Biodiversidade, Centro Nacional de
Pesquisa e Conservação de Aves Silvestres, Cabedelo, PB, Brazil.
*Correspondence: E-mail: randsonmodesto@ymail.com (Paixão)
2Laboratório de Ornitologia, Departamento de Botânica
e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, RN,
Brazil. E-mail: carlos25salu@gmail.com (Salustio-Gomes);
mauro.pichorim@ufrn.br (Pichorim)
3Programa de Pós-Graduação em Ecologia, Universidade
Federal do Rio Grande do Norte, Natal, RN, Brazil. E-mail:
agianuca@hotmail.com (Gianuca)
4Laboratório de Ensino de Zoologia, Universidade
Federal do Agreste de Pernambuco, Garanhuns, PE, Brazil. E-mail:
guilherme.toledo@ufape.edu.br (Toledo-Lima)
5Departamento de Ecologia, Universidade Federal do Rio
Grande do Norte, Natal, Rio Grande do Norte, 59078-900, Brazil
(Received 22 April 2023 /
Accepted 26 June 2024 / Published 18 December 2024)
Communicated by Chih-Ming Hung
Determining
how environmental factors influence species occupancy patterns is
essential to establish more efficient management strategies and
policies for conserving natural populations and habitats. The
Yellow-green Grosbeak (Caryothraustes
canadensis) is a canopy specialist bird that occurs in the
Atlantic Forest and represents a good model for evaluating how changes
in regional scale characteristics can affect occupancy patterns of
forest specialist species. Increasingly, occupancy models are being
used to maximize these predictions because they are statistical methods
that account for imperfect detection, which strengthens inferences
compared to other approaches. We evaluated how multiple environmental
factors affected the large-scale occupancy of C. canadensis over the last 30
years in the far north of the Brazilian Atlantic Forest, a recognized
center of endemism and biodiversity. In this study, we collected
secondary data from C. canadensis
between 1991 and 2020. The occupancy of C. canadensis and several
environmental factors that explain the historical occupancy dynamics of
the species in the northern Atlantic Forest region were determined, and
analyses were conducted with single-season occupancy models. The
diurnal temperature range had the most significant impact on occupancy.
Climate stability and the forest area were determining factors in the
large-scale occupancy of C.
canadensis. Other impacts on occupancy were noted as altitude
and secondary effects due to precipitation. Records of C. canadensis in the region are
probably associated with multiple interaction factors. The preservation
of forested and climatically stable habitats of the region should favor
the establishment of forest specialist species such as C. canadensis within the study
region. The more significant climatic instability present along the
final portion of the Sao Francisco River, probably a consequence of the
loss of forest cover, can be considered
an area that requires more urgent action for the conservation of this
forest specialist species. Thus, our data validate the importance of
forest remnants and reinforce the adverse effects of habitat
fragmentation and degradation on the requirements of endemic bird
populations of the Atlantic Forest.
Key words: Altitude, Detection,
Forest, Precipitation, Temperature
Citation:
da Paixão RMC, Salustio-Gomes C, Toledo-Lima GS, Gianuca AT, Pichorim
M. 2024. Historical occupancy of the Yellow-green Grosbeak Caryothraustes canadensis (Aves, Cardinalidae) in
the far north of the Atlantic Forest. Zool Stud 63:32. doi:10.6620/ZS.2024.63-32.
Supplementary materials: Table S1丨Table S2
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