NT
Vella Lavella White-eye Zosterops vellalavella



Taxonomy

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.

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

Red List history
Year Category Criteria
2022 Near Threatened B1b(iii)+2b(iii)
2016 Near Threatened C2a(ii)
2012 Near Threatened C2a(ii)
2008 Near Threatened C2a(ii)
2004 Near Threatened
2000 Lower Risk/Near Threatened
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) 930 km2 medium
Area of Occupancy (breeding/resident) 888 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend unknown - - -
Generation length 2.62 years - - -

Population justification: This species is poorly known and the population size has not been quantified, but it is described as fairly common (Dutson 2011) and expert opinion suggests that the population numbers more than 1,000 mature individuals (G. Dutson in litt. 2016).

Trend justification: Remote sensing data (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein) indicate that in the ten years to 2020, forest loss in this species' range has been equivalent to c.4-6%. However, the population trend of this species is considered unknown given its apparent tolerance of degraded forest (Dutson 2011).


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Solomon Islands North-west Vella Lavella

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 800 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2024) Species factsheet: Vella Lavella White-eye Zosterops vellalavella. Downloaded from https://datazone.birdlife.org/species/factsheet/vella-lavella-white-eye-zosterops-vellalavella on 23/11/2024.
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 23/11/2024.