Unusual behaviour of captive-raised gibbons: implications for welfare
Publication Type: |
Journal Article |
Year of Publication: |
2006 |
Authors: |
Susan M. Cheyne |
Publication/Journal: |
Primates |
Keywords: |
captive-raised, gibbon, rehabilitation, stereotypic behavior, stereotypic behaviour, welfare |
ISBN: |
0032-8332 1610-7365 |
Abstract:
Unusual behaviours not normally seen in the wild were studied in 52 captive agile (Hylobates agilis albibarbis) and 23 Mu¨ llers gibbons (H. muelleri spp) at three locations within the Kalaweit Gibbon Rehabilitation Project. Unusual behaviours included stereotypic behaviour (SB), human-directed masturbation and posterior presenting. These data were collected over 18 months as part of an ongoing study into behavioural adaptation of gibbons in a rehabilitation programme. Data were also collected on the unusual behaviours observed, for example, SB, human-directed masturbation and posterior presenting. I suggest causes of the abnormal behaviours and propose solutions to reduce their incidence in order to improve the gibbon’s progress in rehabilitation. From this study I conclude that most gibbons can be rehabilitated from the point of view of acquiring and maintaining a normal behavioural repertoire once in suitable housing. Encouraging the gibbons to reduce and/or stop these unusual behaviours is key to the welfare of the gibbons while in the rehabilitation programme and to successful release into a forest habitat.