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Black-eared Miner Manorina melanotis

IUCN Red List Criteria

Critically Endangered  
Endangered B1ab(ii,iii,iv,v); C2a(i,ii); D1+2 
Vulnerable B1ab(ii,iii,iv,v); C2a(i,ii) 

IUCN Red List history

Year Category
2013 Endangered
2012 Endangered
2008 Endangered
2007 Endangered
2004 Endangered
2000 Endangered
1996 Critically Endangered
1994 Critically Endangered
1988 Threatened

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,700 medium
Number of locations 4 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 250-999 medium Estimated 2007
Population trend Decreasing medium -
Number of subpopulations 4 - - -
Largest subpopulation 250 - - -
Generation length (yrs) 7.1 - - -
Population justification: Despite the Riverland Biosphere Reserve (formerly the Bookmark Biosphere Reserve) supporting an estimated 3,760 individuals, this is thought to equate to an effective population size of only 390 (210-726) mature individuals owing to a skewed sex ratio and a complex social organisation (Clarke et al. 2005). This population represents over 95% of the total effective population, hence, given the broad confidence intervals the population is probably best estimated to fall within the band 250-1,000 mature individuals. The surveys for the estimates by Clarke et al. (2005) were carried out following a series of good breeding seasons, and the population may now stand at the lower end of the estimates owing to a drought in the region (R. Clarke in litt. 2007). Garnett et al. (2011) suggest a total population of 500 mature individuals.
Trend justification: It is suspected to have declined dramatically owing to clearance and fragmentation of its preferred mallee habitat. As a result, hybridisation with the dominant M. flavigula, which invades remnant habitat patches, is now the greatest threat and continues to drive declines. A recent drought may have affected the population and a fire in the Bookmark Biosphere Reserve in late November and early December 2006 burnt 115,000 ha of mallee habitat, reducing the area of available habitat for the species by about a third, or possibly more (R. Clarke in litt. 2007).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Australia Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Australia Murray-Sunset, Hattah and Annuello site factsheet
Australia Riverland Mallee site factsheet
Australia Wyperfeld, Big Desert and Ngarkat site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) Slow, Significant Decline Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching / Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) Slow, Significant Decline Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Whole (>90%) Causing/Could cause fluct Medium Impact: 7
Stresses
Ecosystem degradation, Reduced reproductive success
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Decline Medium Impact: 7
Stresses
Hybridisation
Natural system modifications Fire & fire suppression / Trend Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Majority (50-90%) Causing/Could cause fluct Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Manorina melanotis. Downloaded from http://www.birdlife.org on 02/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Meliphagidae (Honeyeaters)
Species name author (Wilson, 1911)
Population size 250-999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 1,700 km2
Country endemic? Yes
Links to further information
- Summary information on this species