The Capped Langur in Bangladesh: Behavioral Ecology and Reproductive TacticsThis monograph presents a detailed report on the social behaviour and ecology of a previously little known species, the capped langur (presbytis pileata). The author observed capped langurs at Madhupur National Park in Bangladesh, where they live in small one-male groups. This account of his 15-month field study focuses on the relationships among one-male groups and the influence of ecology and seasonal variation in diet upon social behaviour. patterns and aspects of intra-group and intergroup behaviour, whch are then used to test predictions of traditional ecological models of primate social systems. Features of the capped langur's behaviour and ecology that differ from previously studied colobine monkeys are also described in detail. |
Contents
Introduction | 1 |
List of Tables | 8 |
List of Figures | 12 |
Study Animal Study Site and Methods | 14 |
Ranging Behavior | 34 |
Activity Patterns | 55 |
Feeding Ecology | 71 |
IntraGroup Social Behavior | 101 |
Population Dynamics Dispersal and Intergroup Relations | 132 |
Discussion | 151 |
Appendix | 161 |
Common terms and phrases
activity patterns adult females adult male aggressive alarm bark all-male bands allomothering Altmann Anacardiaceae animals Bangladesh birth bouts capped langur groups cercopithecines colobines copulation correlation crown CT group Curtin day range diet Dillenia Dilleniaceae dispersal Dolhinow dominance relationship eaten ecological emigration Erythrocebus extra-group males feeding competition feeding records female transfer female-bonded field data Figure flowers folivorous food sources food trees forest frugivorous fruit group females group male group members habitat hamadryas baboons Hanuman langurs Hladik home range immature infant interactions intergroup encounters jackals juvenile Leguminosae lone males male groups male TD mating mature leaves melalophos meters monsoon Monthly variation months mountain gorillas multi-male groups natal neonates observed occurred one-male groups percentage phayrei predation Presbytis entellus Presbytis pileata primate Procolobus quadrats red colobus rhesus macaques rubicunda sample seasonal social grooming spent eating Struhsaker 1975 study area study period Sylhet territorial total scans tree species Wrangham