Data/hora: 10/06/2024 02:40:25

Provedor de dados: | 76
País: | Brazil
Título: | Trophic relationships in fish assemblages of Neotropical floodplain lakes: selectivity and feeding overlap mediated by food availability
Autores: | Dias,Rosa Maria; Ortega,Jean Carlo Gonçalves; Gomes,Luiz Carlos; Agostinho,Angelo Antonio.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Fish feeding; Electivity; Paraná River.
Resumo: | ABSTRACT. The relationships between the degree of dietary overlap and food availability, and implications for food selectivity of fish species were evaluated at floodplain lakes on the upper Paraná River floodplain, Brazil. The hypothesis tested were: i) species become less selective in lakes with high availability of food resources; and ii) species (interspecific) or individual (intraspecific) present higher food overlap in conditions of high availability of food resources. In general, with the results was observed that species become less selective when the environment provided higher availability of food resources. Interspecific overlap did not show a pattern when evaluating availability of food resources in the lakes. However, intraspecific overlap tended to be more accentuated in conditions of high availability of resource food.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100292
Editor: | Museu de Ciências Naturais
Relação: | 10.1590/1678-4766e2017035
Formato: | text/html
Fonte: | Iheringia. Série Zoologia  v.107 2017
Fonte: | info:eu-repo/semantics/openAccess