well, now those two particular species have good reasons why they have not become established - bongo becuse of importation changes that came into effect shortly after the initial import and malayan tapir because of health problems that put the program on hold.
yep, and when either species were imported to try and build up a population from scratch no one could forsee either issues. the Bongo program had grand population projections of up to 35 animals in the region.
by the same token, we do not know if the Indian Rhino will have problems here in the Australian envionment (unlikely i know), but more worryingly, biosecurity/import laws may be tightened. potentially leaving Dora, Kua and whatever other rhinos are imported before then effectively stranded.
on another note, Australia Zoo having lots of money to throw at starting a breeding program is no guarantee that they wil automatically get as many rhino as they want, so i wasnt making a dumb comment.
the importation of this animal will need to be a carefully staggered approach. hopefully, Indian Rhino will reach viable levels one day, but i hope not at the expense of Black Rhino.