Abstract
The food habits and seed dispersal promoted by the marsupial Didelphis albiventris (Marsupialia: Didelphidae) were investigated in two forest fragments of Curitiba, southern Brazil, between February 1995 and February 1997. Forty live traps were set uniformly in the fragments for opossum captures and collection of their scats. Diet was determined by fecal analysis and seed dispersal was tested through seed germination experiments. With a total of 1842 traps set, 71 scats of the white-eared opossum were collected, and 51 contained seeds. The opossum is omnivorous, consuming invertebrates (100% of occurrence in scats), fruits (76%) and vertebrates (58%). Common animal food items were those found in the litter. Diversities of food items were similar among opossums of different age classes. Seeds of several plant species passed undamaged through the guts and remained viable. Fruits from pioneer plants were the main ones consumed. Based on these results, this omnivorous opossum must be an effective seed disperser in southern Brazil.
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