Biodiversity publications archive

Refugia for biological diversity in arid and semi-arid Australia

Biodiversity Series, Paper No. 4
S.R. Morton, J. Short and R.D. Barker, with an Appendix by G.F. Griffin and G. Pearce
Biodiversity Unit
Department of the Environment, Sport and Territories, 1995

10. Refugia in Western Australia (continued)

10.30. Reference number WA30

Refuge area: Edgar Ranges

Biogeographic region: Dampierland

Type of refuge: Mountain range/refuge from exotic animals

Lat./Long. 18°55’S / 123°25’E

Quality of refuge: Highly significant (4)

Area (km²): <10,000

Chief refuge value

Habitat for ANZECC-listed species and Regional endemics.

General description

Ranges on border of south-west Kimberley and the Great Sandy Desert. Comprises a picturesque scarp, with outlying mesas and scarps. The ranges contain gorges, caves and permanent water. Extensive sandplains support dry-country versions of pindan (low woodlands to low-open woodlands of Eucalyptus zygophylla, Acacia eriopoda, Grevillea refracta, and G. wickhamii over hummock and tussock grassland)1.

ANZECC-listed species

Bilby Macrotis lagotis (V); Alexandra’s parrot (probably only an intermittent visitor, V)1.

Regional endemics

A race of the Plumed Pigeon Geophaps plumifera mungi is endemic to the Edgar Ranges4. Among plants, Pandanus spiralis var. flammeus (a new variety of screw pine) occurs as a solitary colony at Logues Spring, Ptilotus kenneallyanus and Pityrodia ovata.

Relict species

Ficus platypoda and Ficus opposita var. indecora in gorges.

Other significant species

24 species of mammal have been recorded, including an unnamed race of Petrogale lateralis3.

Key threats

None identified; possibly foxes and feral cats.

Land tenure

Currently vacant Crown land. The Edgar Range Nature Reserve is proposed1.

Key references

1. Burbidge et al. (1991)

2. Kenneally (1981)

3. Kennedy (1992)

4. McKenzie (1981)