Feeding ecology of the giant otter, Pteronura brasiliensis
The food habits of the giant otter, Pteronura brasiliensis, were determined by analyzing fecal samples collected year-round from communal latrines at Xixuau Creek (00°48'S, 61°33'W), Jauaperi River (central Brazilian Amazon) between 1993 and 1994. Communal latrines were also sampled during the low w...
| Autor principal: | Weber Rosas, Fernando Cesar |
|---|---|
| Outros Autores: | Zuanon, Jansen, Carter, Sarah K. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Biotropica
2020
|
| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19252 |
| id |
oai:repositorio:1-19252 |
|---|---|
| recordtype |
dspace |
| spelling |
oai:repositorio:1-19252 Feeding ecology of the giant otter, Pteronura brasiliensis Weber Rosas, Fernando Cesar Zuanon, Jansen Carter, Sarah K. Diet Feeding Behavior Mammal Brasil Jauaperi River Anostomidae Bryconinae Caesalpinia Ciliata Carnivora Characiformes Characinae Cichlidae Cynodontidae Erythrinidae Hoplias Sp. Lutrinae Mammalia Perciformes Pteronura Brasiliensis Pteronura Brasiliensis Serrasalmidae Siluriformes Vertebrata The food habits of the giant otter, Pteronura brasiliensis, were determined by analyzing fecal samples collected year-round from communal latrines at Xixuau Creek (00°48'S, 61°33'W), Jauaperi River (central Brazilian Amazon) between 1993 and 1994. Communal latrines were also sampled during the low water season at Aquidauana River (19°32'S, 56°40'W), Pantanal of Mato Grosso do Sul (central Brazil). Fragments of vertebrae, mandibles, teeth, scales, and fin spines provided an estimate of the diet composition. Remains of fish were present in all of the samples. The main fish groups found at Xixuau Creek were Perciformes, represented specifically by Cichlidae (97.3% of all samples), Characiformes (86.5%) and Siluriformes (5.4%). The Characiformes were represented mainly by Erythrinidae (Hoplias sp. 90.6%), followed by Serrasalmidae (28%). The Anostomidae occurred with a frequency of 18.7 percent, while Characinae, Bryconinae, and Cynodontidae were only observed in 3.1 percent of the Characiformes records. At Aquidauana River, the Characiformes were the most frequent fish group, represented in 100 percent of all samples, followed by Siluriformes (66.6%) and Perciformes (33.3%). The fish from the main groups identified in the diet of the giant otters prefer riverbanks, lakes, and flooded forests. The feeding habits of Pteronura brasiliensis are probably influenced by the vulnerability and abundance of the prey consumed by this carnivore. 2020-06-15T22:06:42Z 2020-06-15T22:06:42Z 1999 Artigo https://repositorio.inpa.gov.br/handle/1/19252 10.1111/j.1744-7429.1999.tb00393.x en Volume 31, Número 3, Pags. 502-506 Restrito Biotropica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Diet Feeding Behavior Mammal Brasil Jauaperi River Anostomidae Bryconinae Caesalpinia Ciliata Carnivora Characiformes Characinae Cichlidae Cynodontidae Erythrinidae Hoplias Sp. Lutrinae Mammalia Perciformes Pteronura Brasiliensis Pteronura Brasiliensis Serrasalmidae Siluriformes Vertebrata |
| spellingShingle |
Diet Feeding Behavior Mammal Brasil Jauaperi River Anostomidae Bryconinae Caesalpinia Ciliata Carnivora Characiformes Characinae Cichlidae Cynodontidae Erythrinidae Hoplias Sp. Lutrinae Mammalia Perciformes Pteronura Brasiliensis Pteronura Brasiliensis Serrasalmidae Siluriformes Vertebrata Weber Rosas, Fernando Cesar Feeding ecology of the giant otter, Pteronura brasiliensis |
| topic_facet |
Diet Feeding Behavior Mammal Brasil Jauaperi River Anostomidae Bryconinae Caesalpinia Ciliata Carnivora Characiformes Characinae Cichlidae Cynodontidae Erythrinidae Hoplias Sp. Lutrinae Mammalia Perciformes Pteronura Brasiliensis Pteronura Brasiliensis Serrasalmidae Siluriformes Vertebrata |
| description |
The food habits of the giant otter, Pteronura brasiliensis, were determined by analyzing fecal samples collected year-round from communal latrines at Xixuau Creek (00°48'S, 61°33'W), Jauaperi River (central Brazilian Amazon) between 1993 and 1994. Communal latrines were also sampled during the low water season at Aquidauana River (19°32'S, 56°40'W), Pantanal of Mato Grosso do Sul (central Brazil). Fragments of vertebrae, mandibles, teeth, scales, and fin spines provided an estimate of the diet composition. Remains of fish were present in all of the samples. The main fish groups found at Xixuau Creek were Perciformes, represented specifically by Cichlidae (97.3% of all samples), Characiformes (86.5%) and Siluriformes (5.4%). The Characiformes were represented mainly by Erythrinidae (Hoplias sp. 90.6%), followed by Serrasalmidae (28%). The Anostomidae occurred with a frequency of 18.7 percent, while Characinae, Bryconinae, and Cynodontidae were only observed in 3.1 percent of the Characiformes records. At Aquidauana River, the Characiformes were the most frequent fish group, represented in 100 percent of all samples, followed by Siluriformes (66.6%) and Perciformes (33.3%). The fish from the main groups identified in the diet of the giant otters prefer riverbanks, lakes, and flooded forests. The feeding habits of Pteronura brasiliensis are probably influenced by the vulnerability and abundance of the prey consumed by this carnivore. |
| format |
Artigo |
| author |
Weber Rosas, Fernando Cesar |
| author2 |
Zuanon, Jansen Carter, Sarah K. |
| author2Str |
Zuanon, Jansen Carter, Sarah K. |
| title |
Feeding ecology of the giant otter, Pteronura brasiliensis |
| title_short |
Feeding ecology of the giant otter, Pteronura brasiliensis |
| title_full |
Feeding ecology of the giant otter, Pteronura brasiliensis |
| title_fullStr |
Feeding ecology of the giant otter, Pteronura brasiliensis |
| title_full_unstemmed |
Feeding ecology of the giant otter, Pteronura brasiliensis |
| title_sort |
feeding ecology of the giant otter, pteronura brasiliensis |
| publisher |
Biotropica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19252 |
| _version_ |
1787145099980832768 |
| score |
11.687526 |