rest of southwest Australia, in contrast to comparable forest of the south east, there is a low diversity of bird species. Endemism is similarly low, as most South West bird species are habitat generalists with wide distributions. Exceptions include the red-eared firetail (Stagonopleura oculata) and the white-breasted robin (Eopsaltria georgiana), both of which occur only in the karri forest; the western bristlebird (Dasyornis longirostris), western whipbird (Psophodes nigrogularis nigrogularis) and western ground parrot (Pezoporus wallicus flaviventris), all of which inhabit the region's heath vegetation; and the noisy scrub-bird (Atrichornis clamosus), which inhabits densely vegetated gullies. Other forest birds include the purple-crowned lorikeet. Insects include an endemic spider Moggridgea tingle. The freshwater streams of the Warren region support only a low diversity of fauna, but much of it is highly endemic. A number of frog species are endemic or nearly so, including the orange-bellied frog (Geocrinia vitellina), the white-bellied frog (Geocrinia alba), and the sunset frog (Spicospina flammocaerulea). Endemic freshwater invertebrates include worms of the family Phreodrilidea, and crayfish of the genera Cherax and Engaewa. Land use The Warren region falls entirely within what the Department of Agriculture and Food calls the "Intensive Land-use Zone" (ILZ), the area of Western Australia that has been largely cleared and developed for intensive agriculture such as cropping and livestock production. Despite this, only a small amount of the region's natural vegetation has been cleared and given over to agriculture. The proportion of cleared land was calculated as 13.2% in 2002, although Beard gave a much larger figure of 31% in 1984. The remaining land is considered to be native vegetation, but this need not be pristine; a substantial proportion of the remaining native vegetation has been degraded by selective logging and other human activities. Historically, logging was the primary land use in the region, and this remains a significant industry. There has been substantial selective logging in the region, and some clearfelling. There has also previously been some bauxite mining in the area, but this has now ceased, and the mining areas are at least partially reforested. Dams have also been constructed in high-rainfall forest areas. The most important land uses for the region are now biodiversity conservation and tourism. More than half of the remaining vegetation is now in protected areas, including Shannon National Park, D'Entrecasteaux National Park, Mount Frankland National Park, Leeuwin-Naturaliste National Park and Walpole-Nornalup National Park. These contain numerous tourist