
16-04-2007
Was lazy when i typed that reply, still am really but i'll give it a go...
As far as i know:
First, locating rhino's in a thick jungle is barely impossible, noone really knows how many exactly are there, let alone where they are. The population might even be viable with animals in Laos and Cambodja...
They need to be caught, which is going to be very hard without injuring them, and within a short time-span which is going to be needed for this idea to work. Then you would need to tranquilize them well, and afaik there ain't many vet's around with experience on tranquilizing javan rhino's. By that time you'll find yourself in the middle of one of the densest forest in the world with a sleeping animal of possibly over a ton, who is ever going to get it out?
Let's say that all worked, and you have some of the caught animals in a holding area. You have no clue about the animals still at large, perhaps there are animals left because the trapping methods didn't work for them.
Problems with husbandry might be coming up, since noone ever cared for one in the last 100 or so years. Noone has a clue how these animals reproduce, they might be as easy as one-horned rhino's (as far as they can be called "easy", because it took the zoo-community a hell of a lot of time to know how to breed them, another story on it's own...), they could be as hard to breed as Sumatrans.
Okay, say you got that far and the animals are still doing okay, but there's no male or one needs to be imported. You are faced with taking a male out of a population of 40-60 animals. Taking a breeding male, and thus it's genes out of such a population without extensive research on genetics could be very much disastrous to that population. You have the same problems catching it with the added bonus of transporting it...
In my opinion, learning how to keep animals succesfully in captivity has always been a trial and error routine with many death in the first years of taking it into captivity. Losses this population can't afford.
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