The complex welfare needs of gibbons in zoological collections and their importance for conservation of these endangered apes.
Gibbon welfare in zoo settings centers on meeting the demands of a highly specialized brachiating lifestyle while addressing the social complexity of pair-bonded animals. Their movement pattern — swinging horizontally through canopy — requires substantial overhead structure at appropriate height and span for welfare-appropriate locomotion. Confining brachiators in enclosures that prevent this mode of travel causes both physical deconditioning and behavioral frustration. Social management for gibbons must respect pair bond stability: separating established pairs causes significant distress, while forcing incompatible pairings creates chronic social stress. The many gibbons in collections originating from the pet trade require rehabilitation approaches that address the behavioral and social deficits created by inappropriate early experience. Zoo gibbon collections play an important role in highlighting the illegal pet trade that threatens wild populations.