white rhino in australasian zoos
you'll be glad to know nigel that white rhino's are really starting to pick up in the region.
according to ISIS, auckland have given up trying to breed their rhino's for the time being, after the nasty death by accidental poisoning of most of the zoo's females the zoo sent the remaining female to orana to breed there. auckland now only keep two male rhino. orana have a small breeding herd of five animals, hamilton also breed their herd of six.
here in australia we have had recent births at dubbo (who have eight rhino), monarto with five, perth with four (and another due very soon) and werribee, who with nine rhino have just beaten dubbo to the title of the largest herd in the region. an additional two male white rhino are housed at the troubled mareeba wild animal park (which is still for sale) and hopefully the new buyer wil not fall out with ARAZPA like the last owner and integrate
the animals into the regional program.
unfortunately, despite the idea of keepig rhino in "herds" (they don't really live in herds, but are somewhat semi-social solitary animals), appearing to be the secret to stimulating pairs to breed, it seems that's all it does - stimulate ONE pair to breed. most recent second-time biths at all the zoos are the result of the same pair that bred the first time. maybe these dominant rhino put out pheromones that inhibit the desires or cycles of the other animals? if the programs are to be sucessful the zoo's will have to work out how to get the others to breed as well.
an additional problem that seems to be common with both species of african rhino in australia is that most of the offspring born are males. though this could be entriely coincedental, maybe a dietry issue results in a higher likelihood of male births?
who knows?