CR
Rota White-eye Zosterops rotensis



Family: Zosteropidae (White-eyes)

Authority: Takatsukasa & Yamashina, 1931

Red List Category

Criteria: B1ab(i,ii,iii)+2ab(i,ii,iii)

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Justification of Red List category
This species qualifies as Critically Endangered because it is present on only one island and has an extremely small range which is declining owing to habitat loss and degradation. Its small population declined very rapidly as a result of this habitat loss in combination with other factors, but since the 1990s the population has increased and returned to 1980s levels by 2012. A continuation of this trend and any confirmation of a reduction/halt in habitat loss may mean the species warrants downlisting in the near future. However, it may decline even more rapidly than previous rates if Brown Tree Snake Boiga irregularis becomes established on the island.



Population size: 3750-14000

Population trend: Increasing

Extent of occurrence (breeding/resident): 8 km2

Country endemic: Yes

Attributes
Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2018) Species factsheet: Zosterops rotensis. Downloaded from http://www.birdlife.org on 13/11/2018. Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 13/11/2018.