A koala is seen at Cape Otway, Victoria, Australia. Over-abundance of koalas at Cape Otway is a difficult, long-term issue brought about by their love of manna gums (Eucalyptus viminalis), their reluctance to change food source, favourable climatic conditions and an absence of predators.
Unsustainable koala densities and subsequent over-browsing of the habitat at Cape Otway had resulted in many of the koalas’ preferred food trees dying. Without a sufficient food source to sustain them, the health of the koala population can quickly decline, resulting in koala welfare issues.