A small tree or shrub of the coastal areas of southern Western Australia. In some areas overgrazing and increased fire frequencies are an ongoing problem.
Distribution
Restricted to southwestern Western Australia, mainly in the wheat belt area and along the southern coast. The extent of occurrence (EOO) is estimated to be more than 99,000km2. Specimens collected since 1980 compared to those collected prior to that date indicate that C. roei still occurs within this range. However, although current area of occupancy is unknown, it is likely to be less than 2,000 km2 as a result of extensive clearing of native vegetation. It occurs as an occasional shrub or small tree.
Habitat and Ecology
Usually found in mallee woodland or shrubland with a diverse range of other species.
Human Uses
No specific uses have been recorded.
Conservation Status
Global Status
Near Threatened
Global Rationale
In the first round of conifer assessments (1998), this species was assessed as Vulnerable under the A criteria. With the introduction of new criteria (Ver. 3.1, IUCN 2001) a new assessment found that it no longer met the necessary criteria and a new assessment of Near Threatened on the basis that past reduction is close to 30% (A2) has been made.
Global threats
Habitat loss and fragmentation has been a problem in the past; in some areas overgrazing and increased fire frequencies are an ongoing problem. In some parts of its range, Phytophthora cinnamomi dieback is causing the death of associated species. Although C. roei is not known to be susceptible, dieback of surrounding vegetation could increase risk of fire due to increased fuel loads
Conservation Actions
Known from several protected areas in the southern parts of its range.
References and further reading
Beard, J.S. 1990. Plantlife in Western Australia. Kangaroo Press, Kenthurst, NSW
McCaw, L. 2007. Callitris in the woodlands and shrublands of southern Western Australia: ancient landscapes, contemporary issues. 'Growing forest values', Australian and New Zealand Institute of Forestry (ANZIF) Conference, 3-7 June 2007, Coffs Harbour.
