EN
Mallee Emu-wren Stipiturus mallee



Taxonomy

Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- A2abc A2abc; B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v)

Red List history
Year Category Criteria
2022 Endangered A2abc
2016 Endangered A2abc
2012 Endangered A2abc+3bc+4abc
2008 Endangered A2a,b,c; A3b,c; A4a,b,c
2006 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Lower Risk/Conservation Dependent
1994 Lower Risk/Conservation Dependent
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency does not normally occur in forest
Land-mass type Australia
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 16,250 km2 medium
Area of Occupancy (breeding/resident) 700 km2
Number of locations 3-10,5 -
Severely fragmented? yes -
Population
Estimate Data quality Derivation Year of estimate
Population size 2000-12400, 6600 mature individuals medium estimated 2020
Population trend decreasing medium estimated 1998-2008
Rate of change over the past 10 years/3 generations (longer of the two periods) 50-70% - - -
Generation length 2.12 years - - -
Number of subpopulations 3 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: In 2019, the population of Mallee Emu-wrens was estimated to be 6,629 (2,003–12,363), all in Victoria (Verdon and Clarke 2019). This included 5,368 individuals in Murray-Sunset, 832 in Hattah/Nowingi and 180 birds in Big Desert-Wyperfeld Complex and 249 on other land tenures (Verdon and Clarke 2019).

Trend justification: The current population estimate is 60% lower than an estimated 16,800 (8,400–39,100) individuals in 2009 (Brown et al. 2009). In South Australia, the population in Ngarkat Conservation Park was 4,000–7,000 birds in 2000, where it had been recovering from fires in the 1980s (DELWP 2016), but this population was lost entirely in 2014. Overall the population is thought to have declined by 50-70% in the last ten years (Verdon et al. 2021).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Australia extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Australia Billiatt
Australia Murray-Sunset, Hattah and Annuello
Australia Wyperfeld, Big Desert and Ngarkat

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Shrubland Mediterranean-type Shrubby Vegetation major resident
Altitude 30 - 100 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) No decline Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Climate change & severe weather Temperature extremes Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Ecosystem degradation, Species mortality
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Herbicides and pesticides Timing Scope Severity Impact
Ongoing Unknown Negligible declines Unknown
Stresses
Ecosystem degradation, Species mortality
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Mallee Emu-wren Stipiturus mallee. Downloaded from https://datazone.birdlife.org/species/factsheet/mallee-emu-wren-stipiturus-mallee on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.