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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
26/12/2013 |
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Data da última atualização: |
26/12/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAMARGO, N. F. de; RIBEIRO, J. F.; CAMARGO, A. J. A. de; VIEIRA, E. M. |
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Afiliação: |
NÍCHOLAS F. DE CAMARGO, UNIVERSIDADE DE BRASILIA; JULIANA F. RIBEIRO, UNIVERSIDADE DE BRASILIA; AMABILIO JOSE AIRES DE CAMARGO, CPAC; EMERSON M. VIEIRA, UNIVERSIDADE DE BRASILIA. |
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Título: |
Diet of the gracile mouse opossum Gracilinanus agilis (Didelphimorphia: Didelphidae) in a neotropical savanna: intraspecific variation and resource selection. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Acta Theriologica [on-line], Poland, 04 June 2013. |
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ISSN: |
2190-3743 |
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DOI: |
10.1007/s13364-013-0152-y |
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Idioma: |
Inglês |
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Conteúdo: |
Investigation of the effect of endogenous and exogenous factors on the diet of animals is necessary for a better understanding of their feeding habits. This approach can provide relevant information on the autoecology of a species and its ecological interactions. We investigated the composition and intraspecific variation in the diet of the marsupial Gracilinanus agilis in areas of dry woodland forests (i.e., cerradão) in the Cerrado of Central Brazil, taking into consideration the availability of prey (arthropods) in the environment. We found insects, spiders, birds, and fruits in the scats of G. agilis. Insects (orders Hymenoptera, Isoptera, Hemiptera, and Coleoptera) and fruits were the most frequently consumed resources. Males fed more heavily on insects than females did, whereas during the warm?wet season (October to April), the reproductive females fed on insects more than the nonreproductive females did. On the other hand, the consumption of fruits and vertebrates did not vary between seasons, sexes, or according to female reproductive condition. Moreover, reproductive females fed more frequently on ants and beetles than nonreproductive females did. We also detected both positive (for Isoptera and Hemiptera) and negative (for Hymenoptera) selection of insects during the cool?dry season, whereas in the warm?wet season, these resources were consumed according to their availability in the environment. Our study revealed that G. agilis is an insectivore?omnivore species, but fruits also are a relevant part of its diet. This marsupial seemed to select their prey qualitatively according to its energy demands and nutritional requirements. MenosInvestigation of the effect of endogenous and exogenous factors on the diet of animals is necessary for a better understanding of their feeding habits. This approach can provide relevant information on the autoecology of a species and its ecological interactions. We investigated the composition and intraspecific variation in the diet of the marsupial Gracilinanus agilis in areas of dry woodland forests (i.e., cerradão) in the Cerrado of Central Brazil, taking into consideration the availability of prey (arthropods) in the environment. We found insects, spiders, birds, and fruits in the scats of G. agilis. Insects (orders Hymenoptera, Isoptera, Hemiptera, and Coleoptera) and fruits were the most frequently consumed resources. Males fed more heavily on insects than females did, whereas during the warm?wet season (October to April), the reproductive females fed on insects more than the nonreproductive females did. On the other hand, the consumption of fruits and vertebrates did not vary between seasons, sexes, or according to female reproductive condition. Moreover, reproductive females fed more frequently on ants and beetles than nonreproductive females did. We also detected both positive (for Isoptera and Hemiptera) and negative (for Hymenoptera) selection of insects during the cool?dry season, whereas in the warm?wet season, these resources were consumed according to their availability in the environment. Our study revealed that G. agilis is an insectivore?omnivore species, ... Mostrar Tudo |
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Palavras-Chave: |
Marsupialia. |
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Thesagro: |
Cerrado; Dieta; Inseto; Marsupial; Seleção. |
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Thesaurus Nal: |
Brazil; Diet; Insects; Savannas; Selection methods. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/94444/1/33771.pdf
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Marc: |
LEADER 02550naa a2200313 a 4500
001 1974622
005 2013-12-26
008 2013 bl uuuu u00u1 u #d
022 $a2190-3743
024 7 $a10.1007/s13364-013-0152-y$2DOI
100 1 $aCAMARGO, N. F. de
245 $aDiet of the gracile mouse opossum Gracilinanus agilis (Didelphimorphia$bDidelphidae) in a neotropical savanna: intraspecific variation and resource selection.
260 $c2013
520 $aInvestigation of the effect of endogenous and exogenous factors on the diet of animals is necessary for a better understanding of their feeding habits. This approach can provide relevant information on the autoecology of a species and its ecological interactions. We investigated the composition and intraspecific variation in the diet of the marsupial Gracilinanus agilis in areas of dry woodland forests (i.e., cerradão) in the Cerrado of Central Brazil, taking into consideration the availability of prey (arthropods) in the environment. We found insects, spiders, birds, and fruits in the scats of G. agilis. Insects (orders Hymenoptera, Isoptera, Hemiptera, and Coleoptera) and fruits were the most frequently consumed resources. Males fed more heavily on insects than females did, whereas during the warm?wet season (October to April), the reproductive females fed on insects more than the nonreproductive females did. On the other hand, the consumption of fruits and vertebrates did not vary between seasons, sexes, or according to female reproductive condition. Moreover, reproductive females fed more frequently on ants and beetles than nonreproductive females did. We also detected both positive (for Isoptera and Hemiptera) and negative (for Hymenoptera) selection of insects during the cool?dry season, whereas in the warm?wet season, these resources were consumed according to their availability in the environment. Our study revealed that G. agilis is an insectivore?omnivore species, but fruits also are a relevant part of its diet. This marsupial seemed to select their prey qualitatively according to its energy demands and nutritional requirements.
650 $aBrazil
650 $aDiet
650 $aInsects
650 $aSavannas
650 $aSelection methods
650 $aCerrado
650 $aDieta
650 $aInseto
650 $aMarsupial
650 $aSeleção
653 $aMarsupialia
700 1 $aRIBEIRO, J. F.
700 1 $aCAMARGO, A. J. A. de
700 1 $aVIEIRA, E. M.
773 $tActa Theriologica [on-line], Poland, 04 June 2013.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 275 | |
| 152. |  | AQUINO, F. de G.; WALTER, B. M. T.; RIBEIRO, J. F. Dinâmica de populações de espécies lenhosas de Cerrado, Balsas, Maranhão. Revista Árvore, Viçosa, v. 31, n. 5, p. 793-803, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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| 153. | | RATTER, J. A.; BRIDGEWATER, S.; RIBEIRO, J. F.; DIAS, T. A. B. Distribuicao de especies lenhosas da fitofisionomia cerrado sentido restrito, nos estados compreendidos no bioma cerrado. In: CONGRESSO NACIONAL DE BOTANICA, 49., 1998, Salvador, BA. Resumos. Salvador: UFBA/SBB, 1998. p.363.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 275 | |
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