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| Registros recuperados : 129 | |
| 32. |  | CAMPOS, Z.; SANAIOTTI, T.; MARQUES, V.; MAGNUSSON, W. E. Geographic variation in clutch size and reproductive season of the dwarf Caiman, Paleosuchus palpebrosus, in Brazil. Journal of Herpetology, v. 49, n.1, p. 95-98, 2015.| Biblioteca(s): Embrapa Pantanal. |
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| 37. | | CAMPOS, Z.; SANAIOTTI, T.; MUNIZ, F.; MAGNUSSON, W. E. Parental care in the dwarf caiman, Paleosuchus palpebrosus Cuvier, 1807 (Reptilia: Crocodilia: Alligatoridae). In: Journal of Natural History, v. 46, nos. 47-48, December, p. 2979-2984, 2012.| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 129 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
16/12/2016 |
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Data da última atualização: |
21/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RIBAS, C.; CUNHA, H. A.; DAMASCENO, G.; MAGNUSSON, W. E.; SOLÉ-CAVA, A.; MOURAO, G. |
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Afiliação: |
CAROLINA RIBAS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA-INPA; HAYDÉE A. CUNHA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; GABRIEL DAMASCENO; WILLIAM E. MAGNUSSON, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA-INPA; ANTONIO SOLÉ-CAVA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; GUILHERME DE MIRANDA MOURAO, CPAP. |
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Título: |
More than meets the eye: kinship and social organization in giant otters (Pteronura brasiliensis). |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Behavioral Ecology Sociobiology, v. 70, n.1, p. 61-72, 2016. |
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DOI: |
10.1007/s00265-015-2025-7 |
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Idioma: |
Português |
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Conteúdo: |
Giant otters live in highly cooperative groups. Behavioral observations suggest that groups are composed of a dominant reproductive pair and their offspring of previous years. We combined genetic data and long-term ecological information to determine genetic relatedness within and between groups to verify that hypothesis. We genotyped 12 polymorphic loci of 50 otters from 13 groups and two transient individuals. The average relatedness within groups (r=0.23) was high, but the degree of relatedness varied within the groups, including groups of unrelated individuals, contradicting the current social hypothesis of an exclusively parentbrood model. Negative correlations between kinship and distance between territories were higher in females, and on two
occasions, dominant females were replaced by related subordinates of the same group. Solitary transients were males, suggesting a tendency of male-biased dispersal. These data, combined with long-term ecological and behavioral information, indicate that direct benefits, such as alloparental care, and acquisition, inheritance, and defense of high-quality territories may drive the evolution of group living of this endangered social carnivore. |
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Palavras-Chave: |
Ariranha. |
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Thesagro: |
Comportamento animal; Lontra. |
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Thesaurus NAL: |
Animal behavior; Mustelidae; Pteronura brasiliensis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01961naa a2200265 a 4500
001 2058831
005 2016-12-21
008 2016 bl --- 0-- u #d
024 7 $a10.1007/s00265-015-2025-7$2DOI
100 1 $aRIBAS, C.
245 $aMore than meets the eye$bkinship and social organization in giant otters (Pteronura brasiliensis).
260 $c2016
520 $aGiant otters live in highly cooperative groups. Behavioral observations suggest that groups are composed of a dominant reproductive pair and their offspring of previous years. We combined genetic data and long-term ecological information to determine genetic relatedness within and between groups to verify that hypothesis. We genotyped 12 polymorphic loci of 50 otters from 13 groups and two transient individuals. The average relatedness within groups (r=0.23) was high, but the degree of relatedness varied within the groups, including groups of unrelated individuals, contradicting the current social hypothesis of an exclusively parentbrood model. Negative correlations between kinship and distance between territories were higher in females, and on two occasions, dominant females were replaced by related subordinates of the same group. Solitary transients were males, suggesting a tendency of male-biased dispersal. These data, combined with long-term ecological and behavioral information, indicate that direct benefits, such as alloparental care, and acquisition, inheritance, and defense of high-quality territories may drive the evolution of group living of this endangered social carnivore.
650 $aAnimal behavior
650 $aMustelidae
650 $aPteronura brasiliensis
650 $aComportamento animal
650 $aLontra
653 $aAriranha
700 1 $aCUNHA, H. A.
700 1 $aDAMASCENO, G.
700 1 $aMAGNUSSON, W. E.
700 1 $aSOLÉ-CAVA, A.
700 1 $aMOURAO, G.
773 $tBehavioral Ecology Sociobiology$gv. 70, n.1, p. 61-72, 2016.
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