female Hainan black crested gibbon Twycross 22 July 1984

Shame, hopefully I'll still be around then to get a few snapps

AgileGibbon said:

No chance of getting these gibbons back in - there's 22 at the most left in the wild, consisting of 2 family groups and a few solitaries.

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I didn't realise they were so rare, guessing this is another species that'll die out in my lifetime.
Any idea when this specimen died?

This photo has been nominated into the Favourite Vintage Zoochat Photo. Any zoochatter can nominate any pre 2000 photo now in the photography forum.

http://www.zoochat.com/173/best-vintage-zoochat-photo-413925/

GET NOMINATING!

I am looking at this photo and I find the resemblance to a siki gibbon (nomascus siki) remarkable, could anybody tell me why this is a Hainan gibbon and not N. siki. I am sitting at an airport, so absolutely no literature access...

I just went by the label. I can't say for certain which species she is.

lintworm said:

I am looking at this photo and I find the resemblance to a siki gibbon (nomascus siki) remarkable, could anybody tell me why this is a Hainan gibbon and not N. siki. I am sitting at an airport, so absolutely no literature access...

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I believe the females of siki, leucogenys, concolor, nastutus and hainanus are all extremely difficult to differentiate - and of course all the aforementioned taxa were once classified under Nomascus concolor. As I understand it, at this point in time Twycross held a number of what were classed at the time as Nomascus concolor - however when the species was split, only a single individual turned out to truly belong to this taxon, with all but one of the remaining animals belonging to Nomascus leucogenys. The remaining animal - this female - came from Hainan Island and as such belonged to Nomascus hainanus.

TeaLovingDave said:

As I understand it, at this point in time Twycross held a number of what were classed at the time as Nomascus concolor - however when the species was split, only a single individual turned out to truly belong to this taxon, with all but one of the remaining animals belonging to Nomascus leucogenys. The remaining animal - this female - came from Hainan Island.[/I]

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But Twycross definitely had a male N. concolor [sensu stricto] for many years. He went by the name of “Zombie”.

MikeG said:

But Twycross definitely had a male N. concolor [sensu stricto] for many years. He went by the name of “Zombie”.

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Yeah, that's the single animal I was referring to