Zosterops lacertosus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Zosteropidae

Scientific Name: Zosterops lacertosus (Murphy & Mathews, 1929)
Common Name(s):
English Sanford's White-eye
Woodfordia lacertosa (Murphy & Mathews, 1929)
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.
Identification information:

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. & Leary, T.
Facilitator/Compiler(s): Derhé, M., Dutson, G., Mahood, S., O'Brien, A.
Endemic to one small island, this species is likely to have a moderately small population. At present it is likely to be declining only slowly owing to the forest practices of the islanders, however its decline would accelerate were commercial logging to be initiated.

Previously published Red List assessments:

Geographic Range [top]

Range Description:Woodfordia lacertosa is endemic to Nendo (505 km2) in the Santa Cruz islands of the Solomon Islands. The population size is not known, but the very few observations on this island suggest that it is uncommon in degraded forest (Gibbs 1996, G. Dutson pers. obs 1997, T. Leary in litt. 2000).

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) - km2:810
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 uncommon to fairly common.

Trend Justification:  There are no data on population trends; however, the species is suspected to be declining slowly, owing to habitat degradation.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:UnknownContinuing decline of mature individuals:Yes
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 is a forest species, favouring primary forest but also occurring in degraded and secondary forests with some remaining large trees (Dutson 2011).

Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):4.4
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): Whilst there still appears to be large areas of closed-canopy forest on Nendo, this species would be threatened by any large-scale logging. There are no current plans for commercial logging on Nendo where the inhabitants presently favour small-scale "ecoforestry" schemes (G. Dutson pers. obs 1997).

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 Nendo. Research its tolerance of logged and degraded forest. Support the islanders in their "ecoforestry" schemes.

Citation: BirdLife International. 2016. Zosterops lacertosus. The IUCN Red List of Threatened Species 2016: e.T22714338A94412389. . Downloaded on 27 April 2018.
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