Abstract

ARTEAGA, Maria C.  and  JORGENSON, Jeffrey P.. Movement patterns and diet of the capybara (Hydrochoerus hydrochaeris) in the Colombian Amazonia. Mastozool. neotrop. [online]. 2007, vol.14, n.1, pp.11-17. ISSN 0327-9383.

Along rivers in forested areas, the availability and distribution of food items for capybaras are temporally and spatially limited. We determined the daily movement patterns and the plant species consumed by a group of about 15 capybaras during the dry season of 1999 in southern Colombia. A 200 x 900 m plot within the Amazon River floodplain (varzea) was divided into four areas (swamp edge, path, lakes, and beach), and three transects (250 m each) were defined within three of these areas. Sites with capybara footprints were systematically sampled and the number of capybaras that had passed by each site was estimated. For the beach transect (principal foraging area), we determined the plant species consumed by capybaras and calculated the use and availability of those plants for the whole study beach. Capybaras exhibited solitary movement patterns and used different routes between their refuges (swamp zone) and foraging areas (beach zone). On the beach, they were selective foragers, eating preferentially rice (Oryza sativa), which was the least abundant species present. These behavioral traits differ from those reported elsewhere and may represent a response by capybaras in the Amazon to the characteristics of forest habitats, as well as to the hunting pressure the species has endured in the area.

Keywords : Amazonia; Capybara; Colombia; Daily movement patterns; Foraging.

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