Auditory enrichment for Lar gibbons Hjklhutrs lar at London Zoo DAVID SHEPHERDSONl, NEIL BEMMENTZ,MICK CARMAN3 & SARAH REYNOLDSâ Curntors â Rrsrurcli Group, 2.4ssistant Head Keeper and Head Keeper, Primates, The Zoologicul Societjâ o London. Regentâs Park. London NWI 4 R Y , Great Britain f Wild animals live in an environment of great complexity and variety. One of the greatest challenges of keeping them in captivity is providing an environment that stimulates as rich and varied a behavioural repertoire as that observed in the wild. It has been suggested that the lack of opportunities to express natural or appropriate behaviours can lead to abnormal behaviours. Amongst others. these may include apathy, stereopathic behaviour, coprophagy, excessive aggression and overgrooming (Morris, 1964; MeyerHolzapfel, 1968; Hughes & Duncan. 1981). For many animals one of the greatest sources of stimulation is the presence of conspecifics. Even solitary species may spend time and effort communicating with nearby individuals, if only in order to keep their distance. In their southeast Asian rain-forest habitat gibbons are monogamous and live in family groups. Mos~ species defend an exclusive territory and ownership is declared by singing a species-specific song. Such singing usually involves the adult pair, only
International Zoo Yearbook – Wiley
Published: Jan 1, 1989
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