Do deposed adult male Sichuan snub-nosed monkeys Rhinopithecus roxellana roam as solitary bachelors or continue to interact with former band members?
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摘要:
Dispersal pattems exhibited by group-living animals play an important role in individual reproductive success and survival, as well as population and social dynamics (Greenwood, 1980; Isbell and van Vuren, 1996; Kappeler and van Schaik, 2002). Dispersing individuals may emigrate voluntarily, or they may be forcibly evicted by other individuals (Pusey and Packer, 1987; Clobert et al., 2001). One cause of individual dispersal is when an extra-group male compels another male to leave a group of females. This phenomenon has been well documented in primates, especially Old World monkey species (e.g. Colobus vellerosus: Saj and Sicotte, 2005; Erythrocebus patas: Ohsawa, 2003; Macaca fascicularis: van Noordwijk and van Schaik, 2001).