On the social change of hanuman langurs (Presbytis entellus) in their natural condition

@article{Sugiyama2005OnTS,
  title={On the social change of hanuman langurs (Presbytis entellus) in their natural condition},
  author={Yukimaru Sugiyama},
  journal={Primates},
  year={2005},
  volume={6},
  pages={381-418}
}
I have already reported some of the socio-ecological studies of hanuman langurs (Presbytis entellus) conducted by the Japan-India Joint Project in Primates Investigation over a period of two years from April, 1961. Its main research area was a tropical dry deciduous forest lying to the west of Dharwar in Mysore State, India (SuGIYAMA 1964). The first step of the project was the study of general ecology of langur troops living on and by the road running westwards from Dharwar to Haliyal… 

Behavioral development and social structure in two troops of hanuman langurs (Presbytis entellus)

TLDR
This paper mainly deals with the basic problems of animal sociology such as the birth and the growth of individual langurs, the social behavior and social relationship of troop members, and the troop and its organization on which their life depends.

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TLDR
A socio-ecological study into hanuman langurs in natural conditions mainly in Dharwar, Mysore State, India, for two years from April, 1961 to March, 1963 found a social change in the 30th troop, where a male group attacked the leader of the troop and expelled from the troop all the male langurs including the leader.

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Behavioral development and social structure in two troops of hanuman langurs (Presbytis entellus)

TLDR
This paper mainly deals with the basic problems of animal sociology such as the birth and the growth of individual langurs, the social behavior and social relationship of troop members, and the troop and its organization on which their life depends.

An artificial social change in a hanuman langur troop (Presbytis entellus)

TLDR
A socio-ecological study into hanuman langurs in natural conditions mainly in Dharwar, Mysore State, India, for two years from April, 1961 to March, 1963 found a social change in the 30th troop, where a male group attacked the leader of the troop and expelled from the troop all the male langurs including the leader.

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