Intergroup variation in robbing and bartering by long-tailed macaques at Uluwatu Temple (Bali, Indonesia)

We found qualitative partial support for the male-biased sex ratio hypothesis, whereas the group density hypothesis was not supported

2017

Scholarcy highlights

  • Robbing and bartering is a behavioral practice anecdotally reported in free-ranging commensal macaques
  • In line with the environmental opportunity hypothesis, we found a positive qualitative relation at the group level between time spent in tourist zones and RB frequency or prevalence
  • We found qualitative partial support for the male-biased sex ratio hypothesis, whereas the group density hypothesis was not supported
  • This preliminary study showed that RB is a spontaneous, customary, and enduring population-specific practice characterized by intergroup variation in Balinese macaques
  • RB is a candidate for a new behavioral tradition in this species

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