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	Provedor de dados Zoologia (1) Acta Amazonica (1) Autor ARRAUT,Eduardo Moraes (1) ARRAUT,José Luis (1) Langguth,Alfredo (1) MANTOVANI,José Eduardo (1) MARMONTEL,Miriam (1) NOVO,Evlyn Márcia Leão de Moraes (1) Paludo,Danielle (1) Mais... Palavra-chave Sirenia (2) Amazon development (1) Behavioral plasticity (1) Ecology (1) Mamirauá (1) Manatee (1) Northeastern Brazil (1) Temporal distribution (1) Trichechus manatus manatus (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2002 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Use of space and temporal distribution of Trichechus manatus manatus Linnaeus in the region of Sagi, Rio Grande do Norte State, Brazil (Sirenia, Trichechidae) Zoologia Paludo,Danielle; Langguth,Alfredo. The marine manatee Trichechus manatus manatus Linnaeus, 1758 is endangered in the Brazilian Atlantic coast due to indiscriminate hunting practiced in the past, and to the low reproductive rate of the species. This work studies its use of space and temporal occurrence in the coastal area of Sagi, Northeastern Brazil. Daily observations from the beach of the animals in the sea were made during daytime from 1990 through 1993. The presence of reefs covered with marine algae is a determinant factor in the occurrence of the manatee. They were sighted feeding on algae that grow over the reefs close to beaches that were of high energy during high tide. The range used by manatees shifted according to tide. They occur in depths of 0.4 to 3.8 m; the distance from the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sirenia; Trichechus manatus manatus; Manatee; Temporal distribution; Northeastern Brazil; Ecology. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100019 Bottlenecks in the migration routes of Amazonian manatees and the threat of hydroelectric dams Acta Amazonica ARRAUT,Eduardo Moraes; ARRAUT,José Luis; MARMONTEL,Miriam; MANTOVANI,José Eduardo; NOVO,Evlyn Márcia Leão de Moraes. ABSTRACT In a particular region within western Amazonia, Amazonian manatees (Trichechus inunguis) live in a floodplain environment that becomes inhospitable for them during the annual low-water season. To flee from it, they undergo a dangerous migration to a refuge while water levels are dropping fast. Our aim was to better understand the role of depth variation in this migratory process. We analyzed the sole tracking data on wild manatees (n=10 males), 30 years of Landsat images, a 14-year hydrograph and a 3-D bathymetric model. Migratory routes contained shallower segments, here called 'migratory bottlenecks', which dried out at the end of most lowering-water seasons, blocking the passage to the refuge. Manatees began migrating just in time to traverse... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sirenia; Behavioral plasticity; Mamirauá; Amazon development. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100007 Registros recuperados: 2 Primeira ... 1 ... Última

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