Conservationists have long debated whether the koala should go on the Australian national threatened species list. But,While,Like,Becausethe koala is clearly in trouble in some parts of the country – in Queensland, for example, high numbers have afflicted,are afflicted,are afflicting,afflictedby disease – in other parts such as Victoria and South Australia the problem is not that koala populations are falling,are fallen,falls,fallen, but that they have grown to the point where they are almost too numerous. For a species to be classed as vulnerable, its population must have decreased,decreased,decrease,must decreaseby more than 30 percent over the last three generations or 10 years. The problem is that when such a stipulation is applied to koalas, the Victorian boom offsets the Queensland bust, and the species stays off the list. This has repercussions because northern koalas are different to southern ones. They are smaller, for example, and they contain a genetic expansion,extension,explanation,variationnot represented in the South. Nonetheless,For example,As an addition,For this reason, a split listing has been devised koalas from New South Wales, the ACT and Queensland are now officially 'Vulnerable'; those from Victoria and South Australia are not considered threatened.