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CR
Golden White-eye Cleptornis marchei

IUCN Red List Criteria

Critically Endangered A3e+4e 
Endangered A3e+4e;B1ab(iii,v) 
Vulnerable A3e+4e;B1ab(iii,v);D2 

IUCN Red List history

Year Category
2012 Critically Endangered
2010 Critically Endangered
2009 Critically Endangered
2008 Critically Endangered
2004 Critically Endangered
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Lower Risk/Least Concern

Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type   Average mass 20.2 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 130 medium
Number of locations 2 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals good Estimated 1982
Population trend Decreasing poor -
Number of subpopulations 2 - - -
Largest subpopulation 71997 - - -
Generation length (yrs) 4.4 - - -
Population justification: The species occurs on Saipan (71,997 individuals) and Aguijan (1,169 individuals) (Camp et al. 2009, Amidon et al. in prep.), equating to a global population of c.73,000 individuals.
Trend justification: An extremely rapid population decline, which may well have already begun, is projected over the next ten years owing to the possible establishment of the brown tree snake Boiga irregularis on Saipan.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Northern Mariana Islands (to USA) Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Northern Mariana Islands (to USA) Aguiguan Island and Naftan Rock site factsheet
Northern Mariana Islands (to USA) Northern Saipan site factsheet
Northern Mariana Islands (to USA) Topachau-Susupe-Kagman site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Urban Areas suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Shrubland Subtropical/Tropical Moist suitable 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 / Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) No decline Past Impact
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Brown Tree Snake (Boiga irregularis) Timing Scope Severity Impact
Future Majority (50-90%) Very Rapid Declines Medium Impact: 6
Stresses
Species mortality
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2014) Species factsheet: Cleptornis marchei. Downloaded from http://www.birdlife.org on 28/12/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/12/2014.

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 Critically Endangered
Family Zosteropidae (White-eyes)
Species name author (Oustalet, 1889)
Population size mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 130 km2
Country endemic? Yes
Links to further information
- Summary information on this species