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Location Taiwan (China), Taitung
Central coordinates 121o 3.00' East  22o 41.00' North
IBA criteria A1
Area 149 ha
Altitude
Year of IBA assessment 2004

Chinese Wild Bird Federation



Site description Extent of this site: situated in a marshy wetland area on the north side of where the Chihben River empties into the sea. It was formerly the main channel of the Chihben River, and carries the water from the Shemagan River. The current aquatic area is more than 20 ha; in addition, the scope of the site includes protection forests, sea beaches, and the Chihben Estuary. The Chihben wetlands are at an early successional stage of a marshland ecosystem. Dominant wetland plants include Phragmites communis, Typha SP., Barect Grass Leersia hexandra, Broad-leaved Bow Grass Cyrtococcum accrescens, and Armgrass Oplisrnenus compositus. Because development by the Jiedier Company has not proceeded, the sand and gravel brought by estuarine waves and tides have closed the Chihben Wetland’s outlet channel, and the wetland has begun to recover. The marsh again shows vitality; fish, molluscs, and bird species are breeding in this area. It is a surviving natural treasure on the southeast coast of Taiwan.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Chinese Egret Egretta eulophotes winter  1996  22 individuals  good  A1  Vulnerable 
Spoon-billed Sandpiper Calidris pygmaea winter  2001  unknown  A1  Critically Endangered 
Taiwan Bulbul Pycnonotus taivanus resident  2001  162 individuals  good  A1  Vulnerable 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   major
Artificial - terrestrial   major

Land use

Land-use Extent (% of site)
agriculture 73%
Notes: Added based on Wild Bird Federation of Taiwan 2001. Important Bird Areas of Taiwan. Taipei:WBFT.
water management 5%
Notes: Added based on Wild Bird Federation of Taiwan 2001. Important Bird Areas of Taiwan. Taipei:WBFT.
not utilised 1%
Notes: Added based on Wild Bird Federation of Taiwan 2001. Important Bird Areas of Taiwan. Taipei:WBFT.
other 20%
Notes: Added based on Wild Bird Federation of Taiwan 2001. Important Bird Areas of Taiwan. Taipei:WBFT.

Other biodiversity • At this site, 18 of protected species have been recorded.

References • Su, H. J. and M. G. He. 1982. Investigations and analysis of the flora of the Lanyu and Green Island Special Scenic Areas. National Taiwan University (investigation data) • Severinghaus, L. 1975-1998. Research on the Ryukyu Scops Owl. (ongoing research) • Severinghaus, L., et al. 1997-2000. Research on the forest biodiversity of Lanyu.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Chihben Wetlands. Downloaded from http://www.birdlife.org on 02/08/2014

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