%0 Journal Article
%T ECOLOG¨ªA TR¨®FICA DE LA NUTRIA NEOTROPICAL LONTRA LONGICAUDIS (CARN¨ªVORA, MUSTELIDAE) EN EL R¨ªO LA VIEJA, ALTO CAUCA, COLOMBIA
%A Restrepo
%A Carlos Andr¨¦s
%A Botero-Botero
%A ¨¢lvaro
%J Bolet¨ªn Cient¨ªfico. Centro de Museos. Museo de Historia Natural
%D 2012
%I Scientific Electronic Library Online
%X from september 2009 until march 2010 the diet of the neotropical otter in la vieja river, an affluent of the cauca river, was studied. otter's feces were collected twice a month in plastic bags along a 33 kilometers transect from puerto samaria (department of quind¨ªo) to piedras de moler (department of valle del cauca). in total 686 otter feces were collected which were washed, sifted and compared with a reference collection. thirteeen food categories were recognized where fish were dominant (11 categories). apteronotus sp. showed the most frequency of occurrence (37.43 %), followed by hypostomus sp. (33.28 %) and rhamdia quelen (30.50 %). other fish species predated by the otter in less proportion were: ichthyoelephas longirostris (23.84 %), ancistrus sp. (22.91 %). following the aforementioned fish species, insects were the next most important group; the corydalus sp. (14 %), and in less proportion snails (1 %) and mammals (0.46 %). most preys were accidental (77 %) and incidental (23 %). the otter hunts the same preys in low rainfall season as well as in high rainfall season (rs = 0,91; n = 13 p < 0.00001, jaccard index ij = 0,92).
%K auto ecology
%K upper cauca basin
%K neotropical otters
%K la vieja river.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0123-30682012000100017&lng=en&nrm=iso&tlng=en