email a friend
printable version
Location Micronesia, Federated States of, Kosrae
Central coordinates 162o 57.24' East  5o 19.37' North
IBA criteria A1, A2
Area 70 ha
Altitude 0 - 400m
Year of IBA assessment 2007

Site description The Yela River Watershed holds one of the finest examples of mature native Terminalia forest found in Micronesia (Engbring et al., 1990) and is the focus of numerous research and conservation programs. The Kosrae Conservation and Safety Organization (KCSO) is active in working towards conservation of the site. Currently it is remote and most easily accessed by boat. The FSM NBSAP (2002) lists Yela-Okat Terminalia/Mangrove area as a potential conservation area. The Micronesia Conservation Trust (MCT, 2007) lists the area as a current conservation area.

Key Biodiversity 

Non-bird biodiversity: Conservation targets in the watershed include (NBSAP, 2002): • Terminalia Swamp Forest • Mangrove Forests • Kosrae Flying Fox • Low-elevation Broadleaf Forest

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Ptilinopus porphyraceus resident  present  A2  Not Recognised 
Micronesian Imperial-pigeon Ducula oceanica resident  present  A1, A2  Near Threatened 
Caroline Swiftlet Aerodramus inquietus resident  present  A2  Least Concern 
Micronesian Myzomela Myzomela rubratra resident  present  A2  Least Concern 
Grey-brown White-eye Zosterops cinereus resident  present  A2  Least Concern 
Micronesian Starling Aplonis opaca resident  present  A2  Least Concern 

IBA Monitoring

2007 medium not assessed not assessed

Transportation and service corridors roads and railroads likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Yela-Okat Terminalia Swamp/Mangrove Forest Reserve 580 protected area contains site 70  

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Yela River Watershed. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife