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

8. Foci of biological diversity in New South Wales (continued)

8.3. Broken Hill Complex

Area

57,026 km².

Primary land-use

Sheep grazing, silver lead mining, tourism.

National Parks and Nature Reserves

Mootwingee National Park.

Management problems

Land degradation due to over-grazing by stock, rabbits and goats (Benson 1991; Pickard 1991; Pickard and Norris 1994; Wilcox and Cunningham 1994). Birds of the chenopod shrublands appear to be particularly at risk of decline (Reid and Fleming 1992). Control of vertebrate pests remains central (Freudenberger 1993; Newsome 1994).

ANZECC-listed species

Plants: The wattle Acacia carnei (V) is at risk through depredation on young plants by rabbits (Auld 1993). Bowen and Pressey (1993) also reported Lepidium monoplocoides (E) and Eleocharis obicis and Rhaphidospora bonneyana (both V).

Species that are regionally endemic

No information.

Relict populations

The yellow-footed rock-wallaby Petrogale xanthopus occurs in one small area centered on the Bynguano and Coturaundee Ranges between Mootwingee and White Cliffs (Lim et al. 1987; Lim and Giles 1987).

Other significant populations

Mammals: Dickman et al. (1993) considered the greater long-eared bat Nyctophilus timoriensis and the yellow-bellied sheath-tail bat Saccolaimus flaviventris to be sparse and at risk because their tree-roosting behaviour exposed them to loss of habitat and predation by cats.

Birds: Remaining populations of letter-winged kites Elanus scriptus, black-breasted buzzards Hamirostra melanosternon, Australian bustards Ardeotis kori, bush thick-knees Burhinus grallarius, and Bourke's parrots Neophema bourkii are at risk (Smith and Smith 1994).

Reptiles: The agamid Ctenophorus decresii has a moderately restricted national range and is confined in New South Wales to several isolated sites in the Barrier Range (Sadlier and Pressey 1994). The skink Ctenotus uber is represented in New South Wales by a distinct form known only from five sites (Sadlier and Pressey 1994).

Plants: The rare plants Gahnia lanigera, Paspalidium clementii, Ixiochlamys nana, Pluchea baccharoides, Vittadinia arida, Atriplex lobativalvis, A. morrisii, Euphorbia sarcostemmoides, and Goodenia berardiana (Bowen and Pressey 1993).

Wetlands

No information.

Refugia

None identified.