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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
22/02/2017 |
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Data da última atualização: |
25/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREGUETTI, A. C.; TOMAS, W. M.; BERGALLO, H. G. |
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Afiliação: |
ATILLA COLOMBO FERREGUETTI, Rio de Janeiro State University- Department of Ecology; WALFRIDO MORAES TOMAS, CPAP; HELENA G. BERGALLO, Rio de Janeiro State University- Department of Ecology. |
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Título: |
Density and niche segregation of two armadillo species (Xenarthra: Dasypodidae) in the Vale Natural Reserve, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Mammalian Biology, v.81, p. 138-145, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
We provide the first estimates of density and population size of two sympatric species of armadillos (Euphractus sexcinctus and Dasypus novemcinctus) for the Vale Natural Reserve, evaluating how poaching would be affecting their habitat use (i.e. detectability and occupancy probability) and also describing their activity patterns. Abundance and density were estimated using a distance sampling technique. Occupancy, detectability, and activity patterns were assessed using camera-trapping during a one-year period. Estimated population densities were 0.06 individuals per hectare (ind/ha) and 0.05 ind/ha for D. novemcinctus and E. sexcinctus, espectively. Occupancy probability of both species was affected by the distance to forest edge. D. novemcinctus showed a positive relationship with increasing distance from the edge, whereas E. sexcinctus showed an opposite relationship. D. novemcinctus also showed higher occupancy rates in sites closer to a water resource. Additionally, occupancy and detectability of both species were negatively affected by historical poaching intensity in the reserve. Activity patterns varied between species, with D. novemcinctus being mostly nocturnal and E. sexcinctus being diurnal. We conclude that despite the two armadillo species sharing several niche dimensions, they showed spatial and temporal segregation. These differences may be an adaptation to reduce interspecific competition but may also be affected by the need to avoid poaching pressures. This study contributes to increase the knowledge and conservation of these two little-studied species. MenosWe provide the first estimates of density and population size of two sympatric species of armadillos (Euphractus sexcinctus and Dasypus novemcinctus) for the Vale Natural Reserve, evaluating how poaching would be affecting their habitat use (i.e. detectability and occupancy probability) and also describing their activity patterns. Abundance and density were estimated using a distance sampling technique. Occupancy, detectability, and activity patterns were assessed using camera-trapping during a one-year period. Estimated population densities were 0.06 individuals per hectare (ind/ha) and 0.05 ind/ha for D. novemcinctus and E. sexcinctus, espectively. Occupancy probability of both species was affected by the distance to forest edge. D. novemcinctus showed a positive relationship with increasing distance from the edge, whereas E. sexcinctus showed an opposite relationship. D. novemcinctus also showed higher occupancy rates in sites closer to a water resource. Additionally, occupancy and detectability of both species were negatively affected by historical poaching intensity in the reserve. Activity patterns varied between species, with D. novemcinctus being mostly nocturnal and E. sexcinctus being diurnal. We conclude that despite the two armadillo species sharing several niche dimensions, they showed spatial and temporal segregation. These differences may be an adaptation to reduce interspecific competition but may also be affected by the need to avoid poaching pressures. This... Mostrar Tudo |
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Palavras-Chave: |
Atlantic Forest; Euphractus sexcinctus; Population distribuition. |
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Thesagro: |
Dasypus Novemcinctus; Dinamica populacional. |
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Thesaurus Nal: |
Camera trapping; Species dispersal. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161780/1/1-s2.0-S1616504715001056-main.pdf
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Marc: |
LEADER 02297naa a2200229 a 4500
001 2065284
005 2017-07-25
008 2016 bl uuuu u00u1 u #d
100 1 $aFERREGUETTI, A. C.
245 $aDensity and niche segregation of two armadillo species (Xenarthra$bDasypodidae) in the Vale Natural Reserve, Brazil.
260 $c2016
520 $aWe provide the first estimates of density and population size of two sympatric species of armadillos (Euphractus sexcinctus and Dasypus novemcinctus) for the Vale Natural Reserve, evaluating how poaching would be affecting their habitat use (i.e. detectability and occupancy probability) and also describing their activity patterns. Abundance and density were estimated using a distance sampling technique. Occupancy, detectability, and activity patterns were assessed using camera-trapping during a one-year period. Estimated population densities were 0.06 individuals per hectare (ind/ha) and 0.05 ind/ha for D. novemcinctus and E. sexcinctus, espectively. Occupancy probability of both species was affected by the distance to forest edge. D. novemcinctus showed a positive relationship with increasing distance from the edge, whereas E. sexcinctus showed an opposite relationship. D. novemcinctus also showed higher occupancy rates in sites closer to a water resource. Additionally, occupancy and detectability of both species were negatively affected by historical poaching intensity in the reserve. Activity patterns varied between species, with D. novemcinctus being mostly nocturnal and E. sexcinctus being diurnal. We conclude that despite the two armadillo species sharing several niche dimensions, they showed spatial and temporal segregation. These differences may be an adaptation to reduce interspecific competition but may also be affected by the need to avoid poaching pressures. This study contributes to increase the knowledge and conservation of these two little-studied species.
650 $aCamera trapping
650 $aSpecies dispersal
650 $aDasypus Novemcinctus
650 $aDinamica populacional
653 $aAtlantic Forest
653 $aEuphractus sexcinctus
653 $aPopulation distribuition
700 1 $aTOMAS, W. M.
700 1 $aBERGALLO, H. G.
773 $tMammalian Biology$gv.81, p. 138-145, 2016.
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Registro original: |
Embrapa Pantanal (CPAP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/12/2012 |
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Data da última atualização: |
18/12/2012 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
BUENO, A. de F.; BUENO, R. C. O. de F. |
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Afiliação: |
ADENEY DE FREITAS BUENO, CNPSO; REGIANE CRISTINA OLIVEIRA DE FREITAS BUENO, FESURV. |
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Título: |
As vantagens e os desafios do manejo integrado de pragas da soja no Brasil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
InfoMEP, n. 64, p. 8-13, set. 2012. |
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Idioma: |
Português |
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Palavras-Chave: |
Manejo integrado de pragas. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00400naa a2200133 a 4500
001 1943028
005 2012-12-18
008 2012 bl --- 0-- u #d
100 1 $aBUENO, A. de F.
245 $aAs vantagens e os desafios do manejo integrado de pragas da soja no Brasil.
260 $c2012
653 $aManejo integrado de pragas
700 1 $aBUENO, R. C. O. de F.
773 $tInfoMEP$gn. 64, p. 8-13, set. 2012.
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Embrapa Soja (CNPSO) |
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