Nososticta pilbara 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Platycnemididae

Scientific Name: Nososticta pilbara
Species Authority: Watson, 1969
Common Name(s):
English Pilbara Threadtail
Taxonomic Notes: First described as a subspecies, Nososticta solida pilbara (Watson 1969) and subsequently raised to species rank (Watson 1974). Additional information (Watson and Theischinger 1984, Houston and Watson 1988).

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(ii) ver 3.1
Year Published: 2009
Date Assessed: 2007-07-20
Assessor(s): Hawking, J.
Reviewer(s): Clausnizter, V. & Kalkman, V. (Odonata Red List Authority)
Listed by (Hawking 1999) as Endangered (EN), due to the extremely small distribution and the threat of water extracting for the nearby mining town, which has considerably lowered the water level of the Millstream Spring. This assessment still stands and the habitat continues to be under threat with the same problems.

Geographic Range [top]

Range Description: This species is endemic to Australia. Distribution: Only known from the oasis of permanent waters, fed by the Millstream aquifer, along the Fortescue River, Pilbara, Western Australia (Watson 1969, Watson and Theischinger 1984).
Countries occurrence:
Australia (Western Australia)
Estimated area of occupancy (AOO) - km2: 1-499
Number of Locations: 5
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Watson and Theischinger (1984) state that “Nososticta pilbara is one of the most restricted of any Australian odonate”, and that “it is, however, abundant there occurring in both streams and deep river pools.”
Current Population Trend: Unknown
Additional data:
Population severely fragmented: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Occurs on streams and riverine pools; larvae found under stones in running water (Theischinger and Hawking 2006).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The habitat is being lost due to the extraction of groundwater.

Conservation Actions [top]

Conservation Actions: There are no actions in place; research into the effects the groundwater extraction are having on the breeding ground of Nososticta pilbara is urgently needed.

Citation: Hawking, J. 2009. Nososticta pilbara. The IUCN Red List of Threatened Species 2009: e.T163583A5619029. . Downloaded on 27 November 2015.
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