| anti-predation benefits in a mixed-species group of amazonian tamarins. | because of their small body size, tamarins are potentially vulnerable to a wide range of predator species. this paper examines the general patterns of predator avoidance of the avila-pires saddle-back tamarin (saguinus fuscicollis avilapiresi) and the red-cap moustached tamarin (saguinus mystax pileatus) in the upper urucu river, amazonas, brazil. one highly stable mixed-species group of these species suffered an average of 1 attack by carnivorous raptors every 8.8 days of activity. although non ... | 1993 | 8188122 |