It has been projected that Southwestern Australia, the only internationally recognised biodiversity hotspot in Australia, will experience increasing temperature and decreasing rainfall as a result of climate change.  This climate change is likely to compound the pressures already impacting the threatened vertebrate species in the region.  Furthermore, habitat fragmentation due to past vegetation clearing for agriculture will hinder the ability of species to ‘track' their climatic niche as climatically suitable habitats are expected to shift with time.  Management of threatened vertebrates needs to take predicted climate niche shifts and habitat quality of the future areas of suitable climate into consideration.  This study aims to i) identify areas of potential refugia for threatened vertebrates, ii) predict areas likely to be ‘corridors' of climatic niches, and measure the extent of fragmentation of these ‘corridors', and iii) quantify the vulnerability of the threatened species to climate change, and the identify the modelled response (climatic envelope contraction, fragmentation, and/or dislocation) attributable for the climate change induced threat.