The meaning and function of grunt variants in baboons
Article Abstract:
Baboons have two grunt subtypes, when indicating a move over an open space, and when females are moving toward mothers which have infants. Playback experiments show that baboons respond to these grunts differently, but that the context is also important. The rank of callers also affects responses, and this is especially true for subordinate baboons responding to grunts made by dominant baboons. The reason for callers making the grunts is not clear, and they may not be a result of an intention to convey information, but reflect the caller's emotional state.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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The adaptive value of 'friendships' to female baboons: experimental and observational evidence
Article Abstract:
The reproductive benefits of the close associations that lactating female baboons, Papio cyncephalus, form with unrelated adult males are poorly understood. It has been hypothesized that such relationships could have advantages for the future care of the juveniles and may protect the females from harassment from dominant females and other males. A study of the value of such 'friendships' to female baboons suggests that the main benefit is the protection of juveniles from infanticidal males.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Are immigrant vervet monkeys, Cercopithecus aethiops, at greater risk of mortality than residents?
Article Abstract:
An experiment exploring the mortality probability of immigrant vervet monkeys, Cercopithecus aethiops, as opposed to resident vervet monkeys was conducted. Results indicate that vervets who were translocated to unfamiliar terrain had higher mortality rates within six months of their arrival over resident vervet monkeys. This mortality rate decreased as the immigrant vervets gradually adjusted and became familiar with the terrain.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
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