Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17649
Título: Feeding ecology of the giant otter (Pteronura brasiliensis) and the Neotropical otter (Lontra longicaudis) in Jaú National Park, Amazon, Brazil
Autor: Silva, Roberta Elise
Weber Rosas, Fernando Cesar
Zuanon, Jansen
Palavras-chave: Carnivore
Coexistence
Diet
Feeding
Feeding Ecology
Fish
Mammal
National Park
Protected Area
River
Amazonas
Jau National Park
Carnivora
Characidae
Cichlidae
Doradidae
Erythrinidae
Lontra Longicaudis
Loricariidae
Lutrinae
Pteronura Brasiliensis
Data do documento: 2014
Revista: Journal of Natural History
É parte de: Volume 48, Número 7-8, Pags. 465-479
Abstract: This study compares the diets of the giant otter and the Neotropical otter, two Lutrinae species which feed mainly on fish. The study was carried out through the analyses of faecal samples collected between 2006 and 2008 (82 giant otter and 75 Neotropical otter) in the Jaú National Park. The giant otter feeds mainly on Cichlidae, Erythrinidae and Characidae, while the Neotropical otter consumes Doradidae, Loricariidae and Cichlidae. The two otter species had low diet similarity (Pianka's Index = 0.16). The giant otter consumed larger fish than the Neotropical otter, which probably explores shallow river parts in search of small catfish. Prey other than fish were more frequent in the diet of the Neotropical otter, whereas giant otters ate a greater diversity of fish families. Increasing knowledge of the feeding habits and interactions of these two top-order predators is vital to determine appropriate protection and management policies. © 2013 Taylor & Francis.
DOI: 10.1080/00222933.2013.800607
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