Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment

Detalhes bibliográficos
Autor(a) principal: Ribeiro,Paulo Vitor Alves
Data de Publicação: 2020
Outros Autores: Baesse,Camilla Queiroz, Cury,Márcia Cristina, Melo,Celine de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Zoologia (Curitiba. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100321
Resumo: ABSTRACT Changes in the amounts and proportions of leukocytes, known as leucocyte profiles, have been documented for several bird species and have been used to measure stress levels in these animals. The present work ascertained the biological and ecological attributes that influence the leukocyte profile of Antilophia galeata (Lichtenstein, 1823), the helmeted manakin. This species has been deemed useful in ecological studies because it responds to environmental changes. Blood samples drawn from 89 individuals of A. galeata captured in a Cerrado forest fragment were subjected to analysis under optical microscopy to identify and quantify leukocytes and micronuclei. The number of lymphocytes was greater for males, non-reproductive individuals and individuals infected with ticks. None of the leukocyte components differed in relation to age, molting or body condition index. The amount of micronuclei was correlated with values for total leukocytes, H/L ratio, heterophils, basophils and monocytes. The results suggest that reproduction may be an immunosuppressive factor for the species, producing sexual differences in lymphocyte availability. In addition, biomarkers of genotoxic damage (micronuclei) were related to the amount of leukocytes, indicating that individuals may be sensitive to environmental disturbances. Leukocyte profiles can be considered a useful tool for addressing ecological questions that are relevant to the conservation of species in degraded environments.
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spelling Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragmentAvian hematologyBrazilian birdsmicronucleistresswhite blood cellsABSTRACT Changes in the amounts and proportions of leukocytes, known as leucocyte profiles, have been documented for several bird species and have been used to measure stress levels in these animals. The present work ascertained the biological and ecological attributes that influence the leukocyte profile of Antilophia galeata (Lichtenstein, 1823), the helmeted manakin. This species has been deemed useful in ecological studies because it responds to environmental changes. Blood samples drawn from 89 individuals of A. galeata captured in a Cerrado forest fragment were subjected to analysis under optical microscopy to identify and quantify leukocytes and micronuclei. The number of lymphocytes was greater for males, non-reproductive individuals and individuals infected with ticks. None of the leukocyte components differed in relation to age, molting or body condition index. The amount of micronuclei was correlated with values for total leukocytes, H/L ratio, heterophils, basophils and monocytes. The results suggest that reproduction may be an immunosuppressive factor for the species, producing sexual differences in lymphocyte availability. In addition, biomarkers of genotoxic damage (micronuclei) were related to the amount of leukocytes, indicating that individuals may be sensitive to environmental disturbances. Leukocyte profiles can be considered a useful tool for addressing ecological questions that are relevant to the conservation of species in degraded environments.Sociedade Brasileira de Zoologia2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100321Zoologia (Curitiba) v.37 2020reponame:Zoologia (Curitiba. Online)instname:Sociedade Brasileira de Zoologiainstacron:SBZ10.3897/zoologia.37.e46441info:eu-repo/semantics/openAccessRibeiro,Paulo Vitor AlvesBaesse,Camilla QueirozCury,Márcia CristinaMelo,Celine deeng2021-01-15T00:00:00Zoai:scielo:S1984-46702020000100321Revistahttp://www.scielo.br/zoolONGhttps://old.scielo.br/oai/scielo-oai.phpsbz@sbzoologia.org.br1984-46891984-4670opendoar:2021-01-15T00:00Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologiafalse
dc.title.none.fl_str_mv Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
title Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
spellingShingle Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
Ribeiro,Paulo Vitor Alves
Avian hematology
Brazilian birds
micronuclei
stress
white blood cells
title_short Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
title_full Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
title_fullStr Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
title_full_unstemmed Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
title_sort Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment
author Ribeiro,Paulo Vitor Alves
author_facet Ribeiro,Paulo Vitor Alves
Baesse,Camilla Queiroz
Cury,Márcia Cristina
Melo,Celine de
author_role author
author2 Baesse,Camilla Queiroz
Cury,Márcia Cristina
Melo,Celine de
author2_role author
author
author
dc.contributor.author.fl_str_mv Ribeiro,Paulo Vitor Alves
Baesse,Camilla Queiroz
Cury,Márcia Cristina
Melo,Celine de
dc.subject.por.fl_str_mv Avian hematology
Brazilian birds
micronuclei
stress
white blood cells
topic Avian hematology
Brazilian birds
micronuclei
stress
white blood cells
description ABSTRACT Changes in the amounts and proportions of leukocytes, known as leucocyte profiles, have been documented for several bird species and have been used to measure stress levels in these animals. The present work ascertained the biological and ecological attributes that influence the leukocyte profile of Antilophia galeata (Lichtenstein, 1823), the helmeted manakin. This species has been deemed useful in ecological studies because it responds to environmental changes. Blood samples drawn from 89 individuals of A. galeata captured in a Cerrado forest fragment were subjected to analysis under optical microscopy to identify and quantify leukocytes and micronuclei. The number of lymphocytes was greater for males, non-reproductive individuals and individuals infected with ticks. None of the leukocyte components differed in relation to age, molting or body condition index. The amount of micronuclei was correlated with values for total leukocytes, H/L ratio, heterophils, basophils and monocytes. The results suggest that reproduction may be an immunosuppressive factor for the species, producing sexual differences in lymphocyte availability. In addition, biomarkers of genotoxic damage (micronuclei) were related to the amount of leukocytes, indicating that individuals may be sensitive to environmental disturbances. Leukocyte profiles can be considered a useful tool for addressing ecological questions that are relevant to the conservation of species in degraded environments.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100321
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100321
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.3897/zoologia.37.e46441
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
dc.source.none.fl_str_mv Zoologia (Curitiba) v.37 2020
reponame:Zoologia (Curitiba. Online)
instname:Sociedade Brasileira de Zoologia
instacron:SBZ
instname_str Sociedade Brasileira de Zoologia
instacron_str SBZ
institution SBZ
reponame_str Zoologia (Curitiba. Online)
collection Zoologia (Curitiba. Online)
repository.name.fl_str_mv Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologia
repository.mail.fl_str_mv sbz@sbzoologia.org.br
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