Because much of the area is inhospitable to human activity, it is a lush area for birdlife and rare plant species that have disappeared from other parts of the island.
There aren't any plant species in that area, it's a wasteland.
mnli hypothesis: There aren't any plant species in that area, it's a wasteland. premise: Because much of the area is inhospitable to human activity, it is a lush area for birdlife and rare plant species that have disappeared from other parts of the island.