Dl. Gebo et Ej. Sargis, TERRESTRIAL ADAPTATIONS IN THE POSTCRANIAL SKELETONS OF GUENONS, American journal of physical anthropology, 93(3), 1994, pp. 341-371
Arboreal and semiterrestrial guenons show similar osteological feature
s of the limbs across a wide range of species, environments, and geogr
aphy, while the more terrestrially committed guenons exhibit greater m
orphological divergence. An ecomorphological comparison of two sympatr
ic guenons living in Kibale Forest, Uganda, reveals an array of anatom
ical adaptations for terrestriality in the limbs of Cercopithecus lhoe
sti similar to those found in Erythrocebus patas. In contrast, Cercopi
thecus aethiops, although also frequent users of the terrestrial envir
onment, generally exhibit fewer morphological adaptations characterist
ic of a terrestrial lifestyle. It appears that significant morphologic
al modification for terrestriality has occurred twice within the diver
se radiation of living guenons with C. aethiops perhaps representing a
third group in the making. (C) 1944 Wiley-Liss, Inc.