VU
Japanese Murrelet Synthliboramphus wumizusume



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Red List Category

Criteria: A2cde+3cde+4cde;C2a(ii)

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Justification of Red List category
This species has a small population which is thought to be declining rapidly as a result of disturbance at breeding sites, predation and mortality from drift-net fisheries. It is therefore listed as Vulnerable.

Population size: 2500-9999 mature individuals

Population trend: Decreasing

Distribution size (breeding/resident): 110 km2

Country endemic: No

Attributes
Land-mass type - shelf island - Continental islands include all other islands or island groups. Generally they were once part of continents and lie on a continental shelf of < 200 m sea depth.
Land-mass type - oceanic island - Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally they have never been connected to a continental area by a land-ridge, and are volcanic in origin.
Realm - Palearctic - realm
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2016) Species factsheet: Synthliboramphus wumizusume. Downloaded from http://www.birdlife.org on 03/12/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 03/12/2016.