Durrell Wildlife Conservation Trust Jersey Zoo Update 2011

Ya'Kwanza had a hard act to follow to be fair,he never "had it" with the females in the group really,and he's not a " pretty gorilla" by any stretch.

Interesting you should say that. He didn't have Jambo's charisma certainly and while his father Rigo at Melbourne was a handsome male , I never thought YK was. His son 'Mapema' at Duisburg is also ugly!

I think YK was a bad choice really, given both his handraised background and I also think he was far too young when he arrived to dominate a group of mature females successfully, and it seems that was the case.
 
Interesting you should say that. He didn't have Jambo's charisma certainly and while his father Rigo at Melbourne was a handsome male , I never thought YK was. His son 'Mapema' at Duisburg is also ugly!

I guess people have very different tastes! I think Yuks is a stunning gorilla, good sized, nice colouring and a regal and proud face :)
 
Jersey Zoo update

Goodpoint Jerseylotte; if we all had the same standards of beauty, some of us would get far too much attention, while the less 'attractive' ones would be socially neglected -- applies to Gorillas as much as people. However, would I be right in thinking those of the Jersey Gorilla group who knew Jambo, didn't think much of YK?
 
I guess people have very different tastes! I think Yuks is a stunning gorilla, good sized, nice colouring and a regal and proud face :)

I am sure you are biased as you would know him well. :) He was certainly a big and impressive animal. A pity he was rather a let down breeding-wise though. I could never find out what the problem was- whether he didn't like the females (apart from Hallali K), or the other way around?

Did he become infertile since his testicular operation?
 
However, would I be right in thinking those of the Jersey Gorilla group who knew Jambo, didn't think much of YK?

Jambo's daughter Hallali Kahilli (mother Npongo) has been their only breeding female since YK arrived. They have one surviving son, Mapema, now breeding at Duisburg in Germany.

I have heard various theories as to why he didn't breed with the other females but never sure of the real reason.
 
As far as I can see it just didn't work out, simple as that.
We all know the smallest factors such as; age of all the group members at the point of introduction, makeup of the group, length of time without a silverback before one is introduced and individual personalities, can each make or break a successfully cohabiting or breeding group.

I never heard any suggestion of fertility issues after his testicular surgery, that's just pure speculation. It's the flights of fancy and speculation of interested enthusiasts that does make it a bit difficult at times for professionals to participate in forums such as these. ;)

I should make it clear though, I know comparatively little about goings on in birds or mammals :)
 
It's the flights of fancy and speculation of interested enthusiasts that does make it a bit difficult at times for professionals to participate in forums such as these.

Which is why Tim Rowlands at Chester,first got in touch with me and suggested the idea of doing a walk and talk with himself at Chester to stop the speculation about Chester,when it was first done it didn't have the full backing on the zoo's mangement,unlike now as we now have the full backing tp the point we even have people volunteering to do various tours for us!But even with the good relationship that we have between Chester and zoochat,it hasn't stopped a few problems been caused by certain individuals,but by tweeking how we will now run future events most of the problems will be stopped!!

So given time and the right people in the zoo and on here working together,things can work between the two groups,but there has to be alot of trust on both sides for it to work!!
 
In animals as in us the other animal - humans as they are more popularly known - compatibility and social chemistry come into play. Hence, I agree no one zoo matrimony is set in stone ... s.t.speak.

I will not speculate now .. nor have I done in the past, I just hope Jersey can turn the page with the new intended male group leader and bring in a much needed new chapter of good gorilla tidings.
 
It's the flights of fancy and speculation of interested enthusiasts that does make it a bit difficult at times for professionals to participate in forums such as these. ;)

Seems like a perfectly legitimate query to me. I asked the question. I didn't say that he was. The previous male 'Jitu' at Blackpool had testicular cancer(or similar) and was later found to be infertile, so without knowing otherwise, might not the same have applied to Ya Kwanza? Particularly as he didn't father another offspring with Hallali Kahilli since then. So hardly a 'flight of fancy' IMO.

As for the differences between 'Zoo Professionals' and 'Interested Enthusiasts' its worth noting sometimes they are, or have been, one and the same :)
 
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Pertinax, I'm sorry if you have viewed my post personally, but you have been rather stuck on the theory for quite some time;

I have heard the same too. I think its possible that after an operation for testicular cancer(and removal of one of them) a few years back, that he may be infertile and no longer able to breed. He has only ever bred with one female in their group anyway.

https://www.zoochat.com/community/posts/26067
3. Agreed, he will continue to breed with Kahilli (provided his testicular operation doesn't make him infertile)

is YK still fertile after his testicular operation?

Ya Kwanza won't breed with their other females and I'm not sure if he can breed at all any more since he had an operation for testicular problems(may have been cancer?) and had one removed.

I'm politely asking you to recognise the big difference between saying;
"'Jitu' at Blackpool had some sort of testicular problem and was later found to be infertile, I wonder if this is commonly the case with Gorillas?"

Or repeatedly speculating about whether the reason an animal is not siring young is because he is actually infertile because of a testicular operation which you're not even certain was anything to do with cancer or not. There are a lot of inferences in there based on assumptions.
The news articles were out there and you (and everyone else) have not been party to any facts other than these;
BBC NEWS | Europe | Jersey | Testicle op gorilla 'recovering'

I contacted you when similar was happening on the Black Lion Tamarin thread, you may feel I am singling you out, but you have a bad habit and you need to realise it and stop.
As a moderator you are setting the tone for other members and I was telling everyone in general terms that this kind of conclusion jumping is exactly why it is so difficult for zoo professionals to give out any details (because they will always end up elaborated or cause futher speculation) or participate here.

The reason I am picking up so much on your "I have heard"'s is that in these cases I can see how far off the mark you actually are but you post authoritatively as a moderator.

I apologise again if this comes across as an attack of any sort but if you had responded as you did last time by politely removing the post and speaking to me in private then I would not have followed up my point so publically.
 
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Sorry Jerseylotte, I am totally at loss to understand where the problem with Pertinax question is. It is understandable that zoo people/keepers/officials don`t like all questions or speculation, but this does not mean that it is a problem to do it here anyway. After all, there is no board rule here that speculation/asking questions is forbidden. I have asked myself if Ya Kwanza is infertile due to the cancer thing. Even after your explanation, I don`t get why that is a problem. You don`t need to answer quastions. If you want to answer, you could write that you don`t know. Or that no one knows, if that`s the case.
 
erseyLotte- For as long as Ya Kwanza was at Jersey I've been trying to find out why he didn't breed with more than just the one female. Even direct conversations with Jersey Keepers in the past when I've visited the Zoo haven't really provided the answer. So I resort to the question occassionally on here as well, just in case someone can, or is prepared to shed more light on what was for me, simply an interesting situation, now in the past. As for being 'stuck on the theory' about him possibly being infertile for some time, that's because I never get any further with finding out if its true or not. Its not really a theory, more a thought, but you have taken the trouble to go back through my posts about this as if providing evidence over a legal issue or some serious wrongdoing. Why shouldn't I make such speculative guesses? They still look relevant to me- I wouldn't change any of them now either. In the English Language saying 'I think' or 'believe' or 'I have heard' modifies a statement, so I use it as a way of implying how I came about the information and how sure or otherwise I am of the facts. I think its justifiable to say 'I'm not sure' if that's the case. I am not stating these things as fact, but as far as I know I am quite within my rights to phrase questions like these in order to invite answers. Quoting what myself or anyone else 'is party to' seems an odd and stuffy way to treat a simple question about a Gorilla on a zoo specialists' forum. Its hardly matter of national security, is it? It wasn't particularly aimed at you anyway- more at anybody who read the thread. I'm perfectly entitled to ask more questions and seek more details than what appears on some press or public pronouncement if I want to.

You also imply there is no possible parallel with the case I cited of the male Jitu at Blackpool. But other gorilla males with infertility problems in Zoos in the past have also been diagnosed with damaged, atrophied or otherwise nonfunctioning testicles, so Jitu was not an isolated example, simply a recent one. Hence the repeated queries(or speculation if you wish) about Ya Kwanza.

Despite the critisisms about it, I can't actually see any problem with speculation on a Forum like this. After all, many of the discussions and points raised are speculative and if it dealt only with known facts a lot of the subject matter would be missing and there might not be a Forum at all. Contacting zoos direct with questions like these often fails to provide the answers so its just another way of trying to establish facts if you happen(like me)to be interested. Contrary to what some Zoos seem to think, its not done, on my part at least, either maliciously or with intent to defame the animal or the zoo- I just like to know the facts. No ulterior motive. If that's a problem for some zoos and their staff, they could perhaps make more information freely available, which might reduce the levels of speculation which they may not be comfortable with. However, as this is an Internet discussion Forum, it will always invite a huge variety and quality of input -both accurate and innaccurate-no-one can prevent that.

In the case of the Tamarin post I removed it because I had made an unnecessary speculation which was obviously off the mark and had no relevance. I don't see this case as being similar. I'm simply asking 'Could he have been infertile in his later years at Jersey'? To which I still don't know the answer and probably never will. I don't see why such a perfectly innocent question or suggestion should arouse such censorship.

You also say 'I post authoratively as a Moderator' and should set an example. I don't see the role of Moderator as having any connection with anything else that I post independantly about, apart from Forum issues. If others do, then they probably shouldn't.

I also take exception to the 'flights of fancy' description you made about this. If we are going to be so precise about things, then your statement about Ya Kwanza 'enjoying' going to live in a bachelor group with four younger males could be equally fanciful. This method of grouping may be necessary and workable in captivity to house surplus males together, but isn't natural as it doesn't allow males, particularly silverbacks, the normal expression of their social instincts, so you could be creating a false or misleading impression there.
 
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Pertinax, I am afraid I have to back JerseyLotte up here, Ya Kwanza's testicle op was not due to cancer, and whilst yes, tests on his sperm proved he did have a low sperm count - NOT that he was infertile, he did actually conceive with HK after his op, sadly she miscarried. Despite Yuks only having two viable births and now only one remaining offspring, HK did actually conceive 6 times. As for the other females, Kishka was an old dominant female when he came in as a young blackback, she had taken over the group after Jambo's sudden death and never warmed to YK. Sakina and Bahasha initially showed interest in him but after years of no response their interest waned. Perhaps he is the world's first monogamous gorilla?!
Also, reports from keepers in France say how happy YK was to see the young males he will be sharing with, with relaxed behaviour and happy grumbles. First mixings have been going well, with YK playing with one of the 3 years olds.
Back in Jersey, Badongo is settling in well and has had access outside for the first time today, and whilst not as impressive looking as YK or as stunning (he was a very good looking gorilla) Badongo has an open friendly and somewhat cute face!
 
Pertinax, I am afraid I have to back JerseyLotte up here, Ya Kwanza's testicle op was not due to cancer, and whilst yes, tests on his sperm proved he did have a low sperm count - NOT that he was infertile, he did actually conceive with HK after his op, sadly she miscarried. Despite Yuks only having two viable births and now only one remaining offspring, HK did actually conceive 6 times.
Also, reports from keepers in France say how happy YK was to see the young males he will be sharing with, with relaxed behaviour and happy grumbles. First mixings have been going well, with YK playing with one of the 3 years olds.
Back in Jersey, Badongo is settling in well and has had access outside for the first time today, and whilst not as impressive looking as YK or as stunning (he was a very good looking gorilla) Badongo has an open friendly and somewhat cute face!

I've checked back to the official statement that was put out at the time- it said 'suspicious changes were found in the testicle which was not thought to be functioning normally'. I assumed this indicated cancer and if that wasn't the case then I'm perfectly happy to say I assumed wrongly. But you have also answered my question anyway, if HK conceived again after YK's op, then he was obviously still fertile. (I only suggested perhaps he might not be as I was unaware of that). I was also unaware until I read the recent publicity statement, that HK had conceived by him six times either, though I knew as well as the two live births, that she had miscarried at least once in between.

I hope YK gets on okay in his new male group in France. I'll also agree keeping a silverback with younger males seems to normally work fine, but difficulties can sometimes arise as they all mature- though I also accept male groups are nowadays a necessity in captivity, especially for a male like YK's case, even if not the ideal set-up.

I've seen a newsvideo of 'Badongo' in the interior of Jersey's house. Regarding his appearance-give him a chance;), at 12 he still isn't fully developed and won't be for a couple more years yet. He may not be as brightly-coloured as YK but his father Yaounde at Vallee de Singes is another impressive-looking male too (most of them are). Maybe you can let us know when he has been mixed in with the females successfully?
 
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Sakina and Bahasha initially showed interest in him but after years of no response their interest waned. Perhaps he is the world's first monogamous gorilla?!

I could understand the mature Kishka rejecting him. That's quite a common situation. The case I found more perplexing was Bahasha, as she arrived much later than YK and after he was already mature, which is usually a sure recipe for success(new young female; mature established male). Maybe his handraised background had some influence on his lack of response or interest there, who knows?.

I believe I'm correct that he started mating with HK because being the closest in age when he arrived, she became his main companion/playmate first, which then led to mating between them, but it didn't then extend to the others.

But this is all water under the bridge now. Lets hope there will soon be babies in the Jersey group again with Badongo as father.
 
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Funny the top of the page seems to imply YK wasn't hot in the looks department but by the bottom of the page the new guy is being compared unfavourably with the stunning YK .... unless all the abbreviations totally confused me!
 
Everyone sees these animals differently!
Also, the new male Badongo at 12 isn't fully developed yet, as is apparent in the news video- give him two or three years more to fully mature, particularly his arms and crest, and he may well become as impressive in his own right.
 
Hi guys!

I went to the zoo last Friday, not a lot to report back on apart from they told us at the Gorilla talk that the male was introduced to the females in the morning and then separated again in the afternoon, but it sounded like it went well.

A few questions...

How many aye ayes are at the zoo and how are they distributed? I know there are three on show enclosures, how many are in each? Would be nice to know.

Also which Orangutans live on each side of the islands? Do they get moved around, how does it work?

Finally! Do the bears get moved from each side or do they just stay in the enclosure nearest the entrance. It was nice to see the otter and coatis being fed at the end of the day. I was just wondering how the mixing worked, do they all get moved around?

Thanks for any replies, James
 
Visited yesterday:

Badongo was introduced to the females and all 4 were outside.
The Komodo Dragons have switched to a larger enclosure in the reptile house.
There was a Sulawesi Macaque born on 21st August. Not sure on sex.

@JamesB

The Orangutans are often moved from island to island and mixed with other Orangutans too.
The bears can move from side to side through a tunnel inside the house. The Howler Monkeys are mixed with the bears on the entrance side of the enclosure in the summer but i have never seen them there in the winter.
Unfortunately i dont know the answer to the Aye Aye question.
 
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