Fig. 2

The current distribution of all Ctenocephalides felis haplotypes in Australia. Predictions using the best-fit Maxent model for Ctenocephalides felis (a), Clade ‘Sydney’ (b), Clade ‘Darwin’ (c) and Clade ‘Cairns’ (d) are shown on the maps. An ecological niche in the tropical region of Australia has been suggested for Clade ‘Cairns’, whereas Clade ‘Sydney’ is found nation-wide. A total of 179 samples were used as biological data with Australia’s current climate (1976–2005) and 30 arcsec resolution. Environmental variables met the thresholds for C. felis survival, including temperatures between 3–35 °C with 70–95% humidity and high precipitation levels (> 500 mm yearly)