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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
18/02/2014 |
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Data da última atualização: |
11/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BIANCHI, R. de C.; CAMPOS, R. C.; XAVIER FILHO, N. L.; OLIFIERS, N.; GOMPPER, M. E.; MOURAO, G. de M. |
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Afiliação: |
RITA DE CASSIA BIANCHI, UNESP; RENATA CALIXTO CAMPOS, UFSC; NILSON LINO XAVIER FILHO, UFMS; NATALIE OLIFIERS, FIOCRUZ; MATTHEW E. GOMPPER, UNIVERSITY OF MISSOURI; GUILHERME DE MIRANDA MOURAO, CPAP. |
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Título: |
Intraspecific, interspecific, and seasonal differences in the diet of three mid-sized carnivores in a large neotropical wetland. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Acta Theriologica, v. 59, n. 1, p. 13-23, 2014. |
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ISSN: |
0001-7051 |
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DOI: |
DOI 10.1007/s13364-013-0137-x |
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Idioma: |
Inglês |
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Conteúdo: |
The diet and partitioning of food resources among mid-sized mammalian carnivores is poorly known, especially in the tropics. We evaluated the resource partitioning between Leopardus pardalis (ocelot), Cerdocyon thous (crab-eating fox), and Nasua nasua (brown-nosed coati) in the Pantanal of Brazil. Between December 2005 and February 2008, we collected data necessary to better understand interspecific, intraspecific, and seasonal variability in diet. Food habits were assessed by analysis of feces (n=293) collected from known individuals (n=128), and differences in dietary composition were evaluated through nonmetric dimensional scaling using the Jaccard similarity index. The main diet differences were observed between the specialist ocelot and the more generalist crab-eating fox and brown-nosed coati. Crab-eating foxes and brown-nosed coatis preyed on arthropods, fruits, and vertebrates whereas ocelots preyed almost entirely on vertebrates, mainly rodents and snakes. Ocelots? consumption of snakes was the highest ever recorded, as was the extent of carnivory by brownnosed coatis. For the crab-eating fox and the brown-nosed coati, there were large differences between the use of fruits and animal foods in the wet and dry season. Yet for both species there were no significant differences in the diets of males and females. Despite the conspicuous sexual dimorphism and spatial segregation that are typical of brown-nosed coatis, the results do not support the hypothesis that size dimorphism is primarily an adaptation to reduce intersexual competition for food. Rather, dimorphisms and patterns of space use may be more related to competition among males for access to females. MenosThe diet and partitioning of food resources among mid-sized mammalian carnivores is poorly known, especially in the tropics. We evaluated the resource partitioning between Leopardus pardalis (ocelot), Cerdocyon thous (crab-eating fox), and Nasua nasua (brown-nosed coati) in the Pantanal of Brazil. Between December 2005 and February 2008, we collected data necessary to better understand interspecific, intraspecific, and seasonal variability in diet. Food habits were assessed by analysis of feces (n=293) collected from known individuals (n=128), and differences in dietary composition were evaluated through nonmetric dimensional scaling using the Jaccard similarity index. The main diet differences were observed between the specialist ocelot and the more generalist crab-eating fox and brown-nosed coati. Crab-eating foxes and brown-nosed coatis preyed on arthropods, fruits, and vertebrates whereas ocelots preyed almost entirely on vertebrates, mainly rodents and snakes. Ocelots? consumption of snakes was the highest ever recorded, as was the extent of carnivory by brownnosed coatis. For the crab-eating fox and the brown-nosed coati, there were large differences between the use of fruits and animal foods in the wet and dry season. Yet for both species there were no significant differences in the diets of males and females. Despite the conspicuous sexual dimorphism and spatial segregation that are typical of brown-nosed coatis, the results do not support the hypothesis that size di... Mostrar Tudo |
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Palavras-Chave: |
Frugivory; Intersexual competition. |
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Thesaurus Nal: |
Cerdocyon thous; Leopardus pardalis; Nasua nasua. |
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Categoria do assunto: |
-- |
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Marc: |
null
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 4 | |
| 2. |  | LEITE, A. L. A.; CARDOSO, V. L.; SANTOS, A. R. N. dos; GURGEL, F. de L.; FERREIRA, E. V. de O. Produção de laranjeira 'Pera' e limeira ácida 'Tahiti' em combinação com porta-enxertos no município de Capitão Poço, PA. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 25., 2022, Belém, PA. Anais... Belém, PA: Embrapa Amazônia Oriental, 2023. p. 30-31. (Embrapa Amazônia Oriental. Eventos técnicos & científicos, 1).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | CARDOSO, V. L.; LEITE, A. L. A.; SANTOS, A. R. N. dos; GURGEL, F. de L.; ANDRADE NETO, R. de C.; GIRARDI, E. A.; SOARES FILHO, W. dos S.; PASSOS, O. S.; FERREIRA, E. V. de O.; TEIXEIRA, D. H. L. Desempenho de cultivares de porta-enxertos sob copa de limeira-ácida ‘Tahiti’ em polo citrícola paraense. In: CONFERÊNCIA IUFRO 2023 AMÉRICA LATINA, 2023, Curitiba. Anais… Colombo: Embrapa Florestas, 2023. 183 p. (Embrapa Florestas. Eventos técnicos & científicos, 2).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 4. | | CARDOSO, V. L.; LEITE, A. L. A.; SANTOS, A. R. N. dos; GURGEL, F. de L.; ANDRADE NETO, R. de C.; GIRARDI, E. A.; SOARES FILHO, W. dos S.; PASSOS, O. S.; FERREIRA, E. V. de O.; TEIXEIRA, D. H. L. Desempenho de cultivares de porta-enxertos sob copa de limeira-ácida 'Tahiti' em polo citrícola paraense. In: CONFERÊNCIA IUFRO 2023 AMÉRICA LATINA, 2023, Curitiba. Anais... Colombo: Embrapa Florestas, 2023. p. 154. (Embrapa Florestas. Eventos técnicos & científicos, 2).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre; Embrapa Amazônia Oriental. |
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| Registros recuperados : 4 | |
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