Ps. Ungar, PATTERNS OF INGESTIVE BEHAVIOR AND ANTERIOR TOOTH USE DIFFERENCES IN SYMPATRIC ANTHROPOID PRIMATES, American journal of physical anthropology, 95(2), 1994, pp. 197-219
Little research has been directed towards the examination of ingestive
behaviors in wild primates. This paper describes a naturalistic study
of anterior tooth use in four sympatric anthropoid species: Hylobates
lar, Macaca fascicularis, Pongo pygmaeus, and Presbytis thomasi. Inst
antaneous group scan data were collected during nearly 1,800 hours of
observation between August 1990 and July 1991 at the Ketambe Research
Station in the Gunung Leuser National Park, Sumatra, Indonesia. Ingest
ive behaviors are documented for specific food items and compared amon
g the primate taxa. Results indicate significant differences among the
species in preferred methods of food ingestion. These differences are
related in part to dietary differences, and in part to other aspects
of each primate's biology and ecology. (C) 1994 Wiley-Liss, Inc.