Kangaroo Island Dunnarts have been recorded from areas receiving between 480 and 800 mm annual rainfall. Of the 22 most recent records, 14 were collected from Eucalyptus remota/E. cosmophylla open low mallee, four from E. baxteri low woodland and three from E. baxteri/E. remota low open woodland (Gates 2001a,b). The diet of this species consists mostly of spiders, ants, beetles, scorpions, and sometimes centipedes and grasshoppers (Gates 2001a,b). Males usually survive for only one breeding season, while females may survive to breed a second year (Gates 2001a,b).