The distribution, ecology and conservation needs of Colobanthus curtisiae West

Abstract

Colobanthus curtisiae is known from only 16 populations, most ofless than 100 individuals, in the Midlands and Northeastern Highlands of Tasmania. The species occurs in phytosociologically diverse grassy vegetation from 160 m to 1300 m above sea level. This vegetation is rich in herbs and introduced plants, and has much bare ground. C. curtisiae germinants were observed in two grazed sets of permanent quadrats but were absent from ungrazed plots. The species is vulnerable to pasture improvement and land clearance and to the lack of disturbances which create bare ground. It requires protection and appropriate management in the lowland part of its range.