Alouatta seniculus: Density, Home Range and Group Structure in a Bamboo Forest Fragment in the Colombian Andes

作者：Gomez Posada Carolina^*; Mario Londono Jorge

来源：Folia Primatologica, 2012, 83(1): 56-65.

DOI：10.1159/000339803

• Guadua angustifolia
• Group size
• Group composition
• Home range
• Red howler monkey
• Subgrouping
• Population density

We evaluated population density, group structure and home range of red howler monkeys in a bamboo forest fragment in the Cordillera Central mountain range of Colombia. We estimated a density of 377.7 individuals/km(2), which is a higher density than normally reported for this species. The average home range size was 3.6 +/- 1.1 ha. We found large groups (15.1 +/- 4.0 individuals) with subgrouping behavior (daily divisions in foraging subgroups), and a high number of adult and subadult individuals of both sexes per group (mean of 5 males and 7 females per group). The small home range and large group size observed may be related to the high density of howler monkeys in this fragment, which we suggest could be the result of limited dispersal opportunities for these monkeys. The results illustrate the great plasticity of the genus Alouatta, which enables the monkeys to live in a wide range of conditions.

• 出版日期2012