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Behavioral Effects of Changing Group Membership Among Captive Lowland Gorillas by Michael P. Hoff; Kathryn T. Hoff; L. Charles Horton; Terry L. Maple is a Environmental Science article available to read on EtoBox.

What is Behavioral Effects of Changing Group Membership Among Captive Lowland Gorillas about?

Group membership was modified among 4 gorilla groups at Zoo Atlanta in an attempt to increase compatibility and sexual behavior. The modifications ultimately moved 7 adult females among the groups. The moves were made by individually introducing the new group members to the old members, resulting in 18 total introductions. Several individual and social behaviors differed in the two conditions. The most obvious change was a temporary increase in aggressive display behaviors, as well as an increase in contact and social examination, in the postmovement condition. Additionally, the individual behaviors of travelling and eating increased after the introductions, while resting decreased. Other self-maintenance behaviors did not change. Finally, there was an increase in time mothers and offspring spent closer to one another following the moves. Previous research and anecdotal evidence suggest that gorillas respond to changes in group membership with aggression; these data support and extend those data to different agehex groups, postmovement trends in behavior, and other aspects of gorilla behavior.

Who reads Behavioral Effects of Changing Group Membership Among Captive Lowland Gorillas?

Author

Michael P. Hoff; Kathryn T. Hoff; L. Charles Horton; Terry L. Maple

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0733-3188)

Published

1996

Language

EN

Field

Environmental Science (Life Sciences)