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Realm of the Red Ape A New Approach to Orang-utan Husbandry Jason Boyer, Chester Zoo, UK Introduction Orang-utans have been kept at Chester zoo for over 40 years Successfully bred 22 individuals Chester Orang-utans of both species play a major role in the European breeding programme
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Realm of the Red ApeA New Approach to Orang-utan Husbandry Jason Boyer, Chester Zoo, UK
Introduction • Orang-utans have been kept at Chester zoo for over 40 years • Successfully bred 22 individuals • Chester Orang-utans of both species play a major role in the European breeding programme • Curatorial staff at Chester Zoo sit on the Orang-utan species committee • Currently keep 6 Sumatran and 4 Bornean
Old house • Inside area • Keeper area • Keeper passage and beds 4.5m x 32m 144m² • Store areas 3(3m x 5m) 45m² _____________________________________________________________________________ • Total 189m² • Animal enclosures • Yard 1 9m x 13m 117m ² • Yard 213m x 13m169m ² • Yard 3 9m x 13m 117m ² ___________________________________________________________________________ • Total 403m² • Outside • Island 1 12m x 23m 276m² • Island 2 16.5m x 24m 396m² ___________________________________________________________________________ • Total 1254m² • Overall 2758m²
Old HouseIndoor Show Areas Cons • Limited useable space • Lack of stimulus • Deep moats • No keeper viewing or access • Day time access only • No viewing between areas for the orang-utans
Old HouseOutdoor Show areas Cons • Deep moats • Not escape proof • Visitor feeding • Low level viewing only
Old HouseOff Show Areas • Small • Where most time was spent • Not stimulating
Old House Pros • Areas of high level viewing • Good floor space • Circuit for mixing new orang-utans
Good features of old house High level viewing Circuit for mixing orang-utans Floor space Holding area Bad features Moats inside/out No 3-D space Not stimulating Day time access only No keeper viewing Not orang-utan proof! No viewing between yards for orang-utans Husbandry restrictions Planning the new house:
New Realm Of The Red Ape(R.O.R.A.) • Immersion experience for visitors • - High level viewing • - Planted passageways • - Support species exhibits • Description of enclosures • 3 indoor enclosures at 10m high • 2 outdoor netted to maximum 16m high • Outdoor open poles from 18m to 10m
Dimensions of R.O.R.A. • Inside area • Ground floor • Keeper area • 2 Keeper passage @ 5m x 30m 300m² • Access to external yards @ 3m x 30m + 3m x 30m 150m² • Kitchen/toilets @ 5m x 20m 100m² • Store room/work area @ 5m x 10m 50m² • ___________________________________________________________________________________________ • Total • 600m² • Animal enclosures • 3 internal enclosures @10m x15m 450m² • 3 internal ‘trap’ areas @10m² 30m² • ___________________________________________________________________________________________ • Total • 480m² • Outside • Outdoor 1 1439m² • Outdoor 2 and 3 @ 17m x 12m 204m² • Outdoor 4 1454m² • ___________________________________________________________________________________________ • Total 3301 m² • Overall 4381m²
Realm Of The Red Ape(R.O.R.A.) Important features of Realm Of the Red Ape:
3-D Useable Space • - Mesh roof (indoors and outside) and some walls • - 5km of webbing for climbing • - Artificial trees and poles
General Improved Welfare • Increased fitness • Enrichment opportunities • 24 hr freedom of movement throughout enclosure
Husbandry Flexibility/Management • Improved keeper access/ viewing • ‘Circuit’ open design for movement of animals
Natural, stimulating environment • More natural planting • Constant access to outdoor areas • Opportunities to display social or solitary behaviour
Escape Proof • No moats • High, smooth walls – concrete rendering and metal sheeting • Allows 24 hr access
Mixed Exhibit Housed with 3.1 family (non-breeding) of Lar Gibbons
Catch-up Facilities • Removable and interchangeable tunnel sections, incorporating hydraulic squeeze cage • Electronic lifting equipment
Acknowledgements - J.Boyer@chesterzoo.org - www.chesterzoo.org - Animal Division - Primate Team - Estates Department