摘要 : The population of black howler rnonkeys (Alouatta pigra) at the Lamanai Archaeological Reserve in northwestern Belize Was Studied for a total of 11.5 months during 2 wet and 2 dry seasons between October 1993 and May 1995. We esti... 展开 The population of black howler rnonkeys (Alouatta pigra) at the Lamanai Archaeological Reserve in northwestern Belize Was Studied for a total of 11.5 months during 2 wet and 2 dry seasons between October 1993 and May 1995. We estimated home-range size and range overlap of: troops in order to examine territoriality, and tested the null hypothesis that the population is uniformly distributed throughout the reserve in order to examine habitat use. Home-range sizes were similar to those at Bermudian Landing, Belize, but smaller than those at Tikal. Guatemala. Mean home-range size was estimated as 15.3 ha with 52% overlap based on a 1.0-ha grid. There was no evidence for territoriality. Population distribution was generally uniform, but ruin sites appeared to be preferred habitat and edge habitat was least frequented. 收起