Contexts and social correlates of long-distance calling by male chimpanzees

Article Abstract:

An experiment exploring the contexts and social corellates of long-distance calling by male chimpanzees, Pan troglodytes, was conducted. The long-distance call is characterized by the pant-hoot. Results from observations indicate that high travel engenders more calls, higher status chimpanzees emitted more calls than lower ranking chimpanzees. Chimpanzees hooted more frequently in the presence of alliance partners.

Telecommunications systems, Animal communication, Chimpanzees

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Primate colour predicts social status and aggressive outcome

Article Abstract:

Research describing the relationship between social status and scrotal colour in vervet monkeys is presented. An experimental investigation shows that eventual social status can be predicted by the colour of the scrota with dark coloured males becoming dominant.

Measurement, Social status, Color of animals, Animal coloration, Cercopithecus aethiops, Vervet monkey

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Social and reproductive behaviour in the Madagascan poison frog, Mantella laevigata, with comparisons to the dendrobatids

Article Abstract:

Research describing the field behavior of Madagascan poison frog populations is presented. An analysis of courtship and territorial behaviour shows similarities with the poison-dart frogs, Dendrobatidae.

Behavior, Natural history, Madagascar, Frogs

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