Zosterops vellalavella 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Zosteropidae

Scientific Name: Zosterops vellalavella Hartert, 1908
Common Name(s):
English Vella Lavella White-eye, Banded White-eye, Belted White-eye
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.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Dutson, G.
Facilitator/Compiler(s): Derhé, M., Dutson, G., Mahood, S., O'Brien, A., North, A.
This species has a very small range on just one small island where it is likely to have a moderately small population. Although most of the forest on the island is either being logged or is scheduled to be logged, the species can apparently persist in degraded and logged forest, and may therefore not be declining. It is therefore currently classified as Near Threatened, but any evidence of a decline may warrant its uplisting to a higher threat category.

Previously published Red List assessments:

Geographic Range [top]

Range Description:Zosterops vellalavella is endemic to the small island of Vella Lavella (630 km2) in the Solomon Islands. It is very poorly known, although it has been considered common. The only count is 29 birds seen in six hours in 1998, and expert opinion suggesting >1000 (G. Dutson in litt. 2016), suggesting a small total population.

Countries occurrence:
Solomon Islands
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:930
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:No
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population size of this species has not been quantified, but it is described as common and expert opinion suggests >1000 (G. Dutson in litt. 2016).

Trend Justification:  The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes.
Current Population Trend:Unknown
Additional data:
Number of mature individuals:UnknownContinuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No
No. of individuals in largest subpopulation:100

Habitat and Ecology [top]

Habitat and Ecology:It occurs in forest, usually forest edge but also primary forest, logged forest (Gibbs 1996, G. Dutson pers. obs. 1998, Hornbuckle 1999) and in regrowth, including coconut plantations with some undergrowth and scattered old trees (Dutson 2011).

Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):3.5
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): The majority of Vella Lavella has been or is scheduled to be logged and this may cause this species to decline (G. Dutson pers. obs. 1998).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
None is known.

Conservation Actions Proposed
Regularly monitor the population at selected sites. Protect significant areas of primary forest on Vella Lavella. Research its tolerance of logged and degraded forest.

Citation: BirdLife International. 2016. Zosterops vellalavella. The IUCN Red List of Threatened Species 2016: e.T22714176A94404857. . Downloaded on 18 June 2018.
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