Diet of Lontra longicaudis (Olfers, 1818) (Carnivora: Mustelidae) in three limnic systems in Southern Rio Grande do Sul State, Brazil

Brazilian Archives of Biology and Technology

Fernando Marques Quintela²  Luiz Guilherme Schultz Artioli²  Rafael Almeida Porciuncula¹ 

[1],Universidade Federal do Rio Grande do SulPorto Alegre RS ,Brasil

关键词: anthropogenic shallow lakes;    pluvial channel;    coastal stream;    neotropical otter;   

DOI  :  10.1590/S1516-89132012000600011

来源: SciELO

【 摘 要 】

The aim of the present work was to study the diet of Lontra longicaudis in three limnic systems (anthropogenic shallow lakes, pluvial channel and coastal stream) in Rio Grande do Sul State coastal plain, southern Brazil. Fishes were the most consumed item in all the three systems, being Mugilidae the most representative family in the pluvial channel and coastal stream and Cichlidae in the shallow lakes. Other identified items were mollusks, insects, crustaceans, amphibians, reptiles, birds and mammals and vegetal fragments. The high frequency of birds in the shallow lakes was remarkable, considering the lower frequencies of this item in previous investigations on the species diet. There was a high frequency of swamp eels (Synbranchidae, Synbranchus marmoratus) in the pluvial channel and shallow lakes, which were usually absent or found in low frequencies in previous studies.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License