Original: Dr. David Lindenmeyer (Australian National University) has argued that the need for nest boxes indicates that logging practices are not ecologically sustainable, for conserving hollow-dependent species like Leadbeater's possum.
Simplified: Dr. David Lindenmeyer, (Australian National University), has said that the need to make nest boxes showed that logging was removing too many older trees with hollows needed by species like Leadbeater's Possum.