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Acacia dempsteri

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA FABALES LEGUMINOSAE

Scientific Name: Acacia dempsteri
Species Authority: F.Muell.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2011-04-20
Assessor(s): Malcolm, P.
Reviewer(s): Hilton-Taylor, C.
Justification:
Acacia dempsteri is a shrub or tree endemic to Western Australia that grows mainly in granite outcrops. Despite its restricted distribution (extent of occurrence ~20,500 km2) and ongoing threats to the habitat (mainly due to pastoral activities, too frequent fires and introduction of alien species) the species seems to be adapted to fires and there is no clear indication that these threats are causing a population decline. It is therefore listed as Least Concern. Further monitoring of the threats and habitat status of granite outcrops of the region are recommended.

Geographic Range [top]

Range Description: Acacia dempsteri is endemic to Australia confined to southwestern Western Australia with a scattered distribution from near Kambalda south to Gilmore Rocks and east to Breeborinia Rock (Orchard and Wilson 2001).
Countries:
Native:
Australia (Western Australia)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information on population size or dynamics.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Shrub or tree to c. 3 m high confined to granite outcrops and grows in sand or sandy loam.
Systems: Terrestrial

Threats [top]

Major Threat(s): In the Coolgardie region most landscapes are extensively degraded by pastoral activities with increasing salinity problems; and the whole area is affected by mining activities, weed and feral pest problems and too frequent fires (Australian Natural Resources Atlas 2009). However, A. dempsteri seems resistent to fires and resprouts from roots underground; and tough spines might deter feral grazers.

Conservation Actions [top]

Conservation Actions: The species is known to occur within the Dundas Nature Reserve. It is not listed as Threatened under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). Seeds are yet to be collected as an ex situ conservation measure. It is recommended that further monitoring is carried out to assess habitat status and levels of threat on granite outcrops of the region.

Citation: Malcolm, P. 2012. Acacia dempsteri. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 01 October 2014.
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