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| 33. |  | 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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| Registros recuperados : 135 | |
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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: |
16/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
LEUCHTENBERGER, C.; LIMA, R. S.; RIBAS, C.; MAGNUSSON, W. E.; MOURAO, G. de M. |
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Afiliação: |
CAROLINE LEUCHTENBERGER, INPA; RENATA SOUSA LIMA, UFRN; CAROLINA RIBAS, INPA; WILLIAM E. MAGNUSSON, INPA; GUILHERME DE MIRANDA MOURAO, CPAP. |
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Título: |
Giant otter alarm calls as potential mechanisms for individual discrimination and sexual selection. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Bioacoustics, v. 25, n. 3, p. 279-291, 2016. |
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DOI: |
http://dx.doi.org/10.1080/09524622.2016.1157704 |
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Idioma: |
Inglês |
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Conteúdo: |
Acoustic variation can convey identity information, facilitate social interactions among individuals and may be useful in identifying sex and group affiliation of senders. Giant otters live in highly cohesive groups with exclusive territories along water bodies defended by the entire group by means of acoustic and chemical signals. Snorts are harsh alarm calls, emitted in threat contexts, which commonly elicit the cohesion and the alert behaviour of the members of the group. The aim of this study was to determine whether giant otter snorts have potential to be used for individual discrimination. We tested this hypothesis by verifying if the acoustic characteristics of snorts vary between two study areas, among social groups and individuals, and between males and females. Snort acoustic variables did not differ significantly among study areas, but varied significantly among groups, individuals and between sexes, with higher discrimination between sexes. The frequency of formants (F1-F5) and formant dispersion (DF) potentially allow identity coding among groups, individuals and sexes. The stronger sex discrimination of snorts may be related to information on body size carried by formant frequencies and dispersion, indicating acoustic sexual dimorphism in giant otters. Acoustic differences among groups and individuals are more likely learned, since we did not find evidence for a genetic signal encoded in the snort variables measured. We conclude that the snorts carry information that could be used for individual or group recognition. MenosAcoustic variation can convey identity information, facilitate social interactions among individuals and may be useful in identifying sex and group affiliation of senders. Giant otters live in highly cohesive groups with exclusive territories along water bodies defended by the entire group by means of acoustic and chemical signals. Snorts are harsh alarm calls, emitted in threat contexts, which commonly elicit the cohesion and the alert behaviour of the members of the group. The aim of this study was to determine whether giant otter snorts have potential to be used for individual discrimination. We tested this hypothesis by verifying if the acoustic characteristics of snorts vary between two study areas, among social groups and individuals, and between males and females. Snort acoustic variables did not differ significantly among study areas, but varied significantly among groups, individuals and between sexes, with higher discrimination between sexes. The frequency of formants (F1-F5) and formant dispersion (DF) potentially allow identity coding among groups, individuals and sexes. The stronger sex discrimination of snorts may be related to information on body size carried by formant frequencies and dispersion, indicating acoustic sexual dimorphism in giant otters. Acoustic differences among groups and individuals are more likely learned, since we did not find evidence for a genetic signal encoded in the snort variables measured. We conclude that the snorts carry informatio... Mostrar Tudo |
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Palavras-Chave: |
Acoustic identity; Ariranha. |
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Thesagro: |
Comportamento animal; Lontra. |
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Thesaurus NAL: |
Animal behavior; Animal communication; Pteronura brasiliensis; Sounds. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02367naa a2200277 a 4500
001 2058810
005 2016-12-16
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1080/09524622.2016.1157704$2DOI
100 1 $aLEUCHTENBERGER, C.
245 $aGiant otter alarm calls as potential mechanisms for individual discrimination and sexual selection.
260 $c2016
520 $aAcoustic variation can convey identity information, facilitate social interactions among individuals and may be useful in identifying sex and group affiliation of senders. Giant otters live in highly cohesive groups with exclusive territories along water bodies defended by the entire group by means of acoustic and chemical signals. Snorts are harsh alarm calls, emitted in threat contexts, which commonly elicit the cohesion and the alert behaviour of the members of the group. The aim of this study was to determine whether giant otter snorts have potential to be used for individual discrimination. We tested this hypothesis by verifying if the acoustic characteristics of snorts vary between two study areas, among social groups and individuals, and between males and females. Snort acoustic variables did not differ significantly among study areas, but varied significantly among groups, individuals and between sexes, with higher discrimination between sexes. The frequency of formants (F1-F5) and formant dispersion (DF) potentially allow identity coding among groups, individuals and sexes. The stronger sex discrimination of snorts may be related to information on body size carried by formant frequencies and dispersion, indicating acoustic sexual dimorphism in giant otters. Acoustic differences among groups and individuals are more likely learned, since we did not find evidence for a genetic signal encoded in the snort variables measured. We conclude that the snorts carry information that could be used for individual or group recognition.
650 $aAnimal behavior
650 $aAnimal communication
650 $aPteronura brasiliensis
650 $aSounds
650 $aComportamento animal
650 $aLontra
653 $aAcoustic identity
653 $aAriranha
700 1 $aLIMA, R. S.
700 1 $aRIBAS, C.
700 1 $aMAGNUSSON, W. E.
700 1 $aMOURAO, G. de M.
773 $tBioacoustics$gv. 25, n. 3, p. 279-291, 2016.
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