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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
22/02/2017 |
Data da última atualização: |
25/07/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FERREGUETTI, A. C.; TOMAS, W. M.; BERGALLO, H. G. |
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. |
Título: |
Density and niche segregation of two armadillo species (Xenarthra: Dasypodidae) in the Vale Natural Reserve, Brazil. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Mammalian Biology, v.81, p. 138-145, 2016. |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Atlantic Forest; Euphractus sexcinctus; Population distribuition. |
Thesagro: |
Dasypus Novemcinctus; Dinamica populacional. |
Thesaurus Nal: |
Camera trapping; Species dispersal. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
25/03/2010 |
Data da última atualização: |
15/09/2022 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
FERREIRA, I. C. P. V.; MOTA, V. A.; ARAÚJO, A. V. de; COSTA, C. A. da; FERREIRA, M. A. J. F. |
Afiliação: |
MARIA ALDETE JUSTINIANO F FERREIRA, CPATSA. |
Título: |
Avaliação participativa de acessos de bucha vegetal. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 6.; CONGRESSO LATINO-AMERICANO DE AGROECOLOGIA, 2., 2009, Curitiba. Anais: agricultura familiar e camponesa: experiências passadas e presentes construindo um futuro sustentável Curitiba: ABA: SOCLA, 2009. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Notas: |
Publicado também na Revista Brasileira de Agroecologia, v. 4, n. 2, 2009. |
Conteúdo: |
O objetivo deste trabalho foi avaliar, de forma participativa, acessos de bucha vegetal. |
Palavras-Chave: |
Bucha vegetal; Cucurbitácea; Ferramenta participativa; Luffa spp. |
Thesagro: |
Agricultura Familiar. |
Thesaurus NAL: |
Agriculture. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/17693/1/Aldete.pdf
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Marc: |
LEADER 01041nam a2200253 a 4500 001 1662346 005 2022-09-15 008 2009 bl uuuu u00u1 u #d 100 1 $aFERREIRA, I. C. P. V. 245 $aAvaliação participativa de acessos de bucha vegetal. 260 $aIn: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 6.; CONGRESSO LATINO-AMERICANO DE AGROECOLOGIA, 2., 2009, Curitiba. Anais: agricultura familiar e camponesa: experiências passadas e presentes construindo um futuro sustentável Curitiba: ABA: SOCLA$c2009 300 $c1 CD-ROM. 500 $aPublicado também na Revista Brasileira de Agroecologia, v. 4, n. 2, 2009. 520 $aO objetivo deste trabalho foi avaliar, de forma participativa, acessos de bucha vegetal. 650 $aAgriculture 650 $aAgricultura Familiar 653 $aBucha vegetal 653 $aCucurbitácea 653 $aFerramenta participativa 653 $aLuffa spp 700 1 $aMOTA, V. A. 700 1 $aARAÚJO, A. V. de 700 1 $aCOSTA, C. A. da 700 1 $aFERREIRA, M. A. J. F.
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