
04-03-2007
colobus and langurs are related families of specialist leaf eaters. while i know a few species of both have become well established in captivity, they can be very difficult to feed in temperate zoos that cannot provide fresh fodder year-round. i met a german biologist in vietnam who studied the red-shanked doucs at a zoo in germany somewhere (can't remember which zoo). she had travelled to the country to do comparisons with the doucs at the EPRC. we had a long conversation on a beach about the primates and she said that the doucs had bred in germany, but didn't really thrive there. apart from the fact that they were dying out from inbreeding she said in the winter the animals lived on a diet of foliage that was frozen from the summer. apparently the monkeys barely picked at their food and preferred to go hungry for most of the time as they hated eating the soggy, defrosted leaves.
not supprisingly both doucs and proboscis langurs do well in singapore i believe.
i often say that temperate zoos should focus on temperate species. and i think it is slowly happening. i remember reading recently a zoo in the states (chigaco?) swapped its caribbean flamingo colony for a chilean colony with another zoo. the chileans can deal with very cold weather whereas the caribbean species had to be captured and put indoors for much of the year - a stressful experience for the birds.
golden langurs would do well i would guess. black gibbons are adapted to quite cold environments in the mountains of yunnan in china. dhole, golden cats, tigers, leopards - there are lots of species we consider "tropical" that actually are quite well equipped with the cold northern asia.
lots of possibilities for cold-tolerant exotic charismatic species in that part of the world. i'm supprised their isn't more zoos interested in golden monkeys... (or maybe there is?)
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