It is unclear to me how this article 'contributes' to a discussion of 'destruction of wildlife habitat and biodiversity loss'.
This is a 17 year old paper, based on 24 year old data and they didn't find the fragmentation they expected.
They conclude that "The failure to detect patterns consistent with old-growth fragmentation in this case presents several possibilities: (1)old-growth fragmentation is not occurring, (2)amounts of harvesting and old-growth are too low to detect a fragmentation pattern, or (3) our measures and tests of fragmentation are inadequate to detect a fragmentation pattern."
My guess is that if you went back to look at that landscape now you would find fragmentation - they were looking too early.