These include the spiders Tartarus mullamullangensis and Tartarus nurinensis. Threats Threats to the bioregion include overgrazing by sheep, invasive animals like foxes, wild dogs, feral cats, starlings, camels, horses and rabbits, and invasive plants like Ward's weed (Carrichtera annua) and sea spurge (Euphorbia paralias). Protected areas Protected areas include Nuytsland Nature Reserve and Eucla National Park in Western Australia, and Nullarbor National Park which protects the entire South Australian section. The Eyre Bird Observatory is located in coastal mallee woodland in Nuytsland Nature Reserve. It was established in 1977, and includes a natural history library and a small museum. References Further reading Thackway, R and I D Cresswell (1995) An interim biogeographic regionalisation for Australia : a framework for setting priorities in the National Reserves System Cooperative Program Version 4.0 Canberra : Australian Nature Conservation Agency, Reserve Systems Unit, 1995. Biogeography of Western Australia Coolgardie woodlands IBRA regions Mallee Woodlands and Shrublands Goldfields-Esperance