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Christmas Island White-eye Zosterops natalis

IUCN Red List Criteria

Near Threatened (criteria nearly met) D2 

IUCN Red List history

Year Category
2013 Near Threatened
2012 Near Threatened
2008 Vulnerable
2006 Vulnerable
2004 Vulnerable
2000 Critically Endangered
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 160 medium
Number of locations 2 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 20000 poor Estimated 2000
Population trend Stable poor -
Number of subpopulations 2 - - -
Largest subpopulation - - -
Generation length (yrs) 3.5 - - -
Population justification: The species is abundant and the population has been estimated at 20,000 mature individuals (Garnett and Crowley 2000, Garnett et al. 2011), and as high as high as 80,000-170,000 (Beeton et al. 2010); the conservative figure of 20,000 is maintained pending more accurate estimates.
Trend justification: The population is suspected to be stable (S. Garnett in litt. 2005, Garnett et al. 2011).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
Christmas Island (to Australia) Native Extant      
Cocos (Keeling) Islands (to Australia) Introduced Extant      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Christmas Island (to Australia) Christmas Island site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Rural Gardens suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Shrubland Subtropical/Tropical Moist major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Yellow Crazy Ant (Anoplolepis gracilipes) Timing Scope Severity Impact
Ongoing Whole (>90%) Negligible declines Medium Impact:
Stresses
Indirect ecosystem effects, Ecosystem degradation, Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Zosterops natalis. Downloaded from http://www.birdlife.org on 23/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/07/2014.

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 Near Threatened
Family Zosteropidae (White-eyes)
Species name author Lister, 1889
Population size 20000 mature individuals
Population trend Stable
Distribution size (breeding/resident) 160 km2
Country endemic? Yes
Links to further information
- Summary information on this species