Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17421
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorYamamoto, Yukiko-
dc.contributor.authorAkamatsu, Tomonari-
dc.contributor.authorSilva, Vera Maria Ferreira da-
dc.contributor.authorKohshima, Shiro-
dc.date.accessioned2020-06-15T21:42:30Z-
dc.date.available2020-06-15T21:42:30Z-
dc.date.issued2016-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/17421-
dc.description.abstractWe monitored the underwater behavior of botos (Inia geoffrensis) using stereo acoustic data loggers to observe their local habitat use and its diel changes at the Mamirauá Sustainable Development Reserve, Brazil. A-tags were set at five sites in three different habitat types: Lake (low current), Channel (middle current), and Junction (junction of two channels). The presence index during nighttime was significantly greater than during daytime in the Lake and Junction. Underwater movement was estimated from the changing pattern (trajectory) of the relative angle of the sound source from A-tags. A staying-type trajectory was dominant in the Lake, although the prevalence of moving-type trajectory increased at night. More than 80% of detected trajectories were the staying type in the Junction, while moving-type trajectories dominated in the Channel. The frequency of click trains was greatest in the Lake, followed by the Junction and Channels. The average interpulse interval, which reflects the mean target distance of echolocation, was shortest in the Lake, followed by the Junction and Channel. These results suggest that the botos used the Lake as their primary habitat for active behaviors like foraging, especially at night, and the Junction as their primary habitat for relatively inactive behaviors at night. © 2016 Society for Marine Mammalogy.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 32, Número 1, Pags. 220-240pt_BR
dc.rightsRestrito*
dc.subjectBehavioral Ecologyen
dc.subjectDiel Variationen
dc.subjectDolphinen
dc.subjectEcholocationen
dc.subjectForaging Behavioren
dc.subjectHabitat Typeen
dc.subjectHabitat Useen
dc.subjectLacustrine Environmenten
dc.subjectMovementen
dc.subjectTrajectoryen
dc.subjectUnderwater Environmenten
dc.subjectAmazon Riveren
dc.subjectAmazonasen
dc.subjectMamiraua Sustainable Development Reserveen
dc.subjectInia Geoffrensisen
dc.titleLocal habitat use by botos (Amazon river dolphins, Inia geoffrensis) using passive acoustic methodsen
dc.typeArtigopt_BR
dc.identifier.doi10.1111/mms.12252-
dc.publisher.journalMarine Mammal Sciencept_BR
Aparece nas coleções:Artigos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.