A forest monkey’s alarm call series to predator models

@article{Arnold2008AFM,
  title={A forest monkey’s alarm call series to predator models},
  author={Kate Arnold and Yvonne Pohlner and Klaus Zuberb{\"u}hler},
  journal={Behavioral Ecology and Sociobiology},
  year={2008},
  volume={62},
  pages={549-559}
}
Some non-human primates produce acoustically distinct alarm calls to different predators, such as eagles or leopards. Recipients respond to these calls as if they have seen the actual predator, which has led to the notion of functionally referential alarm calls. However, in a previous study with free-ranging putty-nosed monkeys (Cercopithecus nictitans martini), we demonstrated that callers produced two acoustically distinct alarm calls to eagle shrieks and leopard growls, but both alarm calls… 

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Female putty-nosed monkeys (Cercopithecus nictitans) vocally recruit males for predator defence

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