Roaring Behavior of Two Syntopic Howler Species (Alouatta caraya and A. guariba clamitans): Evidence Supports the Mate Defense Hypothesis

@article{Holzmann2012RoaringBO,
  title={Roaring Behavior of Two Syntopic Howler Species (Alouatta caraya and A. guariba clamitans): Evidence Supports the Mate Defense Hypothesis},
  author={Ingrid Holzmann and Ilaria Agostini and Mario S. Di Bitetti},
  journal={International Journal of Primatology},
  year={2012},
  volume={33},
  pages={338-355}
}
Long-distance calls are loud vocalizations involved in within and between group communication in animals. These calls may maintain cohesion with group members or communicate the ownership of valuable resources such as territory, food, or mates to individuals from other groups. In howlers (Alouatta spp.), three nonmutually exclusive hypotheses suggest that the ultimate function of roaring (howling) behavior is to protect resources from neighboring groups. The space/food defense hypothesis… CONTINUE READING
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