Would it not be simpler to just have the breeding group at Dubbo and the non-breeders take their place in Taronga Park? The proposed arrangement could be storing up future problems as it prevents more breeding at Taronga unless the females are sent to Dubbo for mating etc and what happens to the calf in the interim?
1. I would say that Burma and Gigi (non-breeding females at Dubbo) are too old to be transported to Taronga now (in fact, Burma came from Taronga to make way for the Thai elephants)
2. More people would visit babies at Taronga compared to driving all the way out to Dubbo (by keeping some breeding females at Taronga there is a likelihood of babies)
If it were up to me, all of the 'city elephants' (Melbourne and Taronga) would move to their open-range equivalents, but the issue would then be that would people travel such long distances from the major cities just to see baby elephants (i'm assuming that is what the zoos are thinking).