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Troop fission in wild ring-tailed lemurs (Lemur catta) at Berenty, Madagascar

โœ Scribed by Shinichiro Ichino

Book ID
101455329
Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
106 KB
Volume
68
Category
Article
ISSN
0275-2565

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โœฆ Synopsis

A detailed fission process in a wild ring-tailed lemur (Lemur catta) troop was observed at Berenty Reserve, Madagascar. The troop fission occurred as follows: 1) During the birth season in 2000, two adult females (mother and daughter) were evicted as a result of ''targeted aggression'' (i.e., intense and persistent aggressive behavior toward particular individuals). 2) Two adult and three immature females in the same kin group as the evicted females spontaneously immigrated into the new group. 3) A male immigrated into the new group 1.5 months later. 4) The new troop successfully established its own home range. This report exemplifies three characteristics of troop fission in ring-tailed lemurs. First, targeted aggression initiated the fission process. Second, the troop females divided along matrilineal lines. Finally, no male played a specific role in the fission process. Am.

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To determine how the birth and development of infants influence their mothers' social relationships with other adult troop members, we observed two free-ranging troops of ring-tailed lemurs (Lemur catta) at the Berenty Reserve, Madagascar. The number of acts of affiliative contact that the mothers r