Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest
Natural disturbances in tropical forests modify the availability and quality of resources and alter the patterns of bird distribution. These environmental changes increase the metabolic rate and disrupt the redox balance promoting oxidative stress. This study aimed to compare the abundance of Willis...
| Autor principal: | GOMES, Andreza de Lourdes Souza |
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| Outros Autores: | GONÇALVES, Andrey Felipe Gomes, VIEIRA, José Luiz Fernandes, MARCELIANO, Maria Luiza Videiro, SILVA, José Maria Cardoso da |
| Grau: | Artigo |
| Idioma: | eng |
| Publicado em: |
Museu Paraense Emilio Goeldi
2018
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.museu-goeldi.br/handle/mgoeldi/1373 |
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ir-mgoeldi-1373 |
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dspace |
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ir-mgoeldi-13732019-07-17T18:03:19Z Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest Clareiras naturais associadas ao estresse oxidativo em Willisornis poecilinotus (Aves: Thamnophilidae) em uma floresta tropical GOMES, Andreza de Lourdes Souza GONÇALVES, Andrey Felipe Gomes VIEIRA, José Luiz Fernandes MARCELIANO, Maria Luiza Videiro SILVA, José Maria Cardoso da antioxidants environmental disturbances redox balance lipid peroxidation CNPQ::CIENCIAS BIOLOGICAS::BOTANICA Natural disturbances in tropical forests modify the availability and quality of resources and alter the patterns of bird distribution. These environmental changes increase the metabolic rate and disrupt the redox balance promoting oxidative stress. This study aimed to compare the abundance of Willisornis poecilinotus between gaps and the understory of a forest with undisturbed canopy at Caxiuanã National Forest. The abundance was correlated with vegetation heights. The oxidative stress and the stress promoting factors were determined in both sites of sampling. We captured 81 specimens of W. poecilinotus. The number of captures was high in gaps. The specimens sampled at gaps showed high levels of oxidative stress. The biomarkers of oxidative stress were significantly correlated in gaps. The variability of oxidative stress and oxidative damage were explained only by site of sampling. These results suggest that gaps are stressors sites to W. poecilinotus, which probably can be due to an increase of metabolic rate to deal with new flight strategies of foraging and avoid predation Os distúrbios naturais nas florestas tropicais contribuem para heterogeneidade do habitat, alterando os padrões de distribuição das aves. Estas alterações no ambiente elevam o metabolismo, promovendo distúrbios no balanço redox, e em consequência o estresse oxidativo. O objetivo deste estudo foi comparar a abundância de Willisornis poecilinotus entre clareiras e subbosque de dossel intacto associando-a a altura da vegetação na Floresta Nacional de Caxiuanã. A seguir, foi avaliado o estresse oxidativo e os fatores promotores de estresse foram determinados nos ambientes selecionados. Foram capturados 81 espécimes de W. poecilinotus. O número de capturas foi superior nas clareiras, quando comparado ao sub-bosque de dossel contínuo. Os espécimes capturados nas clareiras apresentaram índices de estresse oxidativo significativamente elevados. Foi observada correlação significativa entre os marcadores de estresse oxidativo nas clareiras. As variações do biomarcador de dano oxidativo e do estresse oxidativo foram explicadas somente pelo sítio de amostragem. Estes resultados sugerem que as clareiras são sítios de estímulos estressores para W. poecilinotus o que provavelmente resulta da maior demanda metabólica para novas estratégias de forrageio e para evitar a predação. 2018-12-21T19:01:50Z 2018-11-26 2018-12-21T19:01:50Z 2013-08-29 Artigo de Periódico http://repositorio.museu-goeldi.br/handle/mgoeldi/1373 eng Acta amazonica Acesso Aberto application/pdf Museu Paraense Emilio Goeldi Brasil MPEG |
| institution |
Repositório Institucional - Museu Paraense Emílio Goeldi |
| collection |
RepositorioEmilioGoeldi |
| language |
eng |
| topic |
antioxidants environmental disturbances redox balance lipid peroxidation CNPQ::CIENCIAS BIOLOGICAS::BOTANICA |
| spellingShingle |
antioxidants environmental disturbances redox balance lipid peroxidation CNPQ::CIENCIAS BIOLOGICAS::BOTANICA GOMES, Andreza de Lourdes Souza Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| topic_facet |
antioxidants environmental disturbances redox balance lipid peroxidation CNPQ::CIENCIAS BIOLOGICAS::BOTANICA |
| description |
Natural disturbances in tropical forests modify the availability and quality of resources and alter the patterns of bird distribution. These environmental changes increase the metabolic rate and disrupt the redox balance promoting oxidative stress. This study aimed to compare the abundance of Willisornis poecilinotus between gaps and the understory of a forest with undisturbed canopy at Caxiuanã National Forest. The abundance was correlated with vegetation heights. The oxidative stress and the stress
promoting factors were determined in both sites of sampling. We captured 81 specimens of W. poecilinotus. The number of captures was high in gaps. The specimens sampled at gaps showed high levels of oxidative stress. The biomarkers of oxidative stress were significantly correlated in gaps. The variability of oxidative stress and oxidative damage were explained only by site of sampling. These results suggest that gaps are stressors sites to W. poecilinotus, which probably can be due to an increase of
metabolic rate to deal with new flight strategies of foraging and avoid predation |
| format |
Artigo |
| author |
GOMES, Andreza de Lourdes Souza |
| author2 |
GONÇALVES, Andrey Felipe Gomes VIEIRA, José Luiz Fernandes MARCELIANO, Maria Luiza Videiro SILVA, José Maria Cardoso da |
| author2Str |
GONÇALVES, Andrey Felipe Gomes VIEIRA, José Luiz Fernandes MARCELIANO, Maria Luiza Videiro SILVA, José Maria Cardoso da |
| title |
Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| title_short |
Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| title_full |
Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| title_fullStr |
Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| title_full_unstemmed |
Natural gaps associated with oxidative stress in Willisornis poecilinotus (Aves: Thamnophilidae) in a tropical forest |
| title_sort |
natural gaps associated with oxidative stress in willisornis poecilinotus (aves: thamnophilidae) in a tropical forest |
| publisher |
Museu Paraense Emilio Goeldi |
| publishDate |
2018 |
| url |
http://repositorio.museu-goeldi.br/handle/mgoeldi/1373 |
| _version_ |
1787135784333082624 |
| score |
11.755432 |