Females, male competition and gray langur troop structure.

  title={Females, male competition and gray langur troop structure.},
  author={Richard A. Curtin},
  journal={Folia primatologica; international journal of primatology},
  volume={37 3-4},
  • R. Curtin
  • Published 1982
  • Psychology
  • Folia primatologica; international journal of primatology
During the course of an ongoing investigation of the effects of mother-infant separation on development in gray langur monkeys (Presbytis entellus), a series of 4 mothers of approximately 6-month-old infants were removed from their social groups and placed in a captive all-male group for 2-week periods. The male group contained 3 sexually mature animals and 1 juvenile and was within the range of variation observed in the wild. One of the introduced females came into estrus while with the male… 
The variable social organization of hanuman langurs(Presbytis entellus), infanticide, and the monopolization of females
  • P. Newton
  • Psychology
    International Journal of Primatology
  • 2007
Data from 24 wild populations of hanuman langurs in south Asia are used to test hypotheses seeking to explain variation in troop structure and the incidence of infanticide, and it is suggested that a one-male troop structure will arise if a male is able to monopolize a group of females, a multimale troop if he cannot.
Male competition and coalitions in langurs (Presbytis entellus) at Jodhpur, Rajasthan, India
During a 15 month study on free ranging langurs (Presbytis entellus) at Jodhpur, Rajasthan, India, 5 adult male replacements were observed as a result of nontroop male invasions into the home ranges
Effects of progesterone on male-mediated infant-directed aggression
Splitting in Presbytis entellusgroups
A model for within-group coalitionary aggression among males
A model for rank-changing, within-group coalitions among primate males is developed and the strong predictions of the model are confirmed by observational data on male-male coalitions in primates.
The evolution of nonhuman primate social behavior
A review of the recent literature concerning evolutionary mechanisms and possible genetic contributions to social behavior reveals a concentration on function rather than mechanism. Although
Population density, social pathology, and behavioral ecology