Abstract
We constructed a mammal trapping grid in the subcanopy and canopy levels of the Allee Creek watershed on Barro Colorado Island, Panama. We report here the results from a continuous six-month trapping study (July-December 1994) using large (81 × 32 × 26 cm) traps baited with whole bananas. Species diversity of trapped animals was extremely low, with 847 of 862 captures being coatis (Nasua narica). Most of these captures were multiple captures of a few adult females. Morning and afternoon capture frequencies were not significantly different. The number of captures was highest during a period of fruit abundance, contrary to expected findings. The spatial pattern of captures indicates that, although females may forage together in bands, their sites of capture do not cluster together. The provision of large single food items widely spaced (bananas in traps) is unlike the normal spacing of food items and seems to alter band dynamics temporarily. The characteristics of the trees with the most coati captures strongly suggests that the presence of lianas stretching between the ground and the tree crown provides access to the canopy.
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