LC
Mountain Black-eye Zosterops emiliae



Taxonomy

Taxonomic note
Chlorocharis emiliae has been moved into the genus Zosterops after Lim et al. (2019) confirmed that its genetic position is subsumed within Zosterops. 

Taxonomic source(s)
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.
Handbook of the Birds of the World and BirdLife International. 2019. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 4. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v4_Dec19.zip.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2024 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 332,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 2.81 years - - -

Population justification: The global population size has not been quantified, but the species is described as locally common above 1,600 m (Smythies 1999). This species is considered to have a high dependency on forest habitat, and tree cover is estimated to have declined by 7.2% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). It is therefore tentatively suspected that this rate of cover loss may have led to a decline of between 1-19% in the species' population size over the same time frame, with a best estimate of reduction being 5-9%.

Trend justification:   .


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Indonesia Betung Kerihun
Indonesia Gunung Niut-Poteng
Malaysia Baleh headwaters
Malaysia Bungo Range
Malaysia Danum-Linau
Malaysia Dulit Range
Malaysia Gunung Penrissen
Malaysia Gunung Pueh
Malaysia Hose-Laga mountains
Malaysia Kelabit Highlands
Malaysia Lanjak Entimau Wildlife Sanctuary
Malaysia Mount Kinabalu
Malaysia Mulu - Buda Protected Area
Malaysia Tanjung Datu-Samunsam Protected Area
Malaysia Trus Madi Range
Malaysia Usun Apau plateau

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1250 - 4200 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Mountain Black-eye Zosterops emiliae. Downloaded from https://datazone.birdlife.org/species/factsheet/mountain-black-eye-zosterops-emiliae 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.