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Stictonetta naevosa

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES ANSERIFORMES ANATIDAE

Scientific Name: Stictonetta naevosa
Species Authority: (Gould, 1841)
Common Name/s:
English Freckled Duck

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor/s: BirdLife International
Reviewer/s: Butchart, S. & Symes, A.
Facilitator/s: Harding, M., Butchart, S., Ekstrom, J.
Justification:
Although this species may have a small range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be fluctuating, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Geographic Range [top]

Range Description: This species has been recorded from wetlands across southern Australia, with major concentrations in the Paroo-Warrego catchment (Currawinya Lakes), Eyre-Georgine-Mulligan catchment (Lake Torquinie) and possibly at Lake Galilee. Other inland sites where substantial numbers have been recorded include Cooper's Creek and Bulloo River catchments, the wetlands of the Barkly Tablelands, and Lake Gregory in the central-north of Western Australia. Outside this area, breeding has also been recorded within the rest of the Murray-Darling catchment, notably along the Lachlan River, and swamps within the Millicent Basin of South Australia and Victoria. During extensive inland droughts, permanent wetlands in several states can become important refuge areas.
Countries:
Native:
Australia
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population is estimated to number 11,000-26,000 individuals, roughly equating to 7,300-17,000 mature individuals.
Population Trend: Stable

Habitat and Ecology [top]

Systems: Terrestrial; Freshwater; Marine

Threats [top]

Major Threat(s): During times of inland drought, when found closer to the coast, birds are at risk of being misidentified as game species and shot by duck-hunters. Although no correlation between S. naevosa abundance and hunting effort has yet been identified. Plans to extract water from the Paroo River and Cooper's Creek, which would affect the flooding of critical inland swamps, constitute the greatest current threat. For the time being these plans have been shelved, however, should they proceed, it is estimated that the resulting reduction in habitat quality could cause a 20% population decline within three generations (c.15 years) (Garnett and Crowley 2000).
Citation: BirdLife International 2012. Stictonetta naevosa. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 19 April 2014.
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