Koala conservation - are Koala numbers declining?

According to the Australian Koala Foundation our Koala numbers are declining because we are cutting down more and more trees that Koalas need to survive. In Wye River on the Great Ocean Road however our numbers are increasing rapidly. (In this pic we see our regular Koala visitor at Treetops Holiday house.)

The volunteer Koala counters that do a survey in our area every year have reported a ten fold increase in Koala population in the last 7 years which is wonderful for us and our tourist visitors.