| terrestriality and tree stratum use in a group of sichuan snub-nosed monkeys. | morphological characters allow the sichuan snub-nosed monkey (rhinopithecus roxellana) to use multiple tree levels, but very few studies have quantified the terrestriality and tree stratum use of the species. i investigated the terrestriality and tree stratum use in a group of the monkeys from july 2003 to september 2004 (except february) in the qianjiaping area of shennongjia nature reserve, china. i collected data on the vertical position of individual monkeys in forest in relation to behavior ... | 2007 | 17265009 |