Extent of this site: located in both Taoyuan and Taipei Counties, and completely covers the Chatienshan Nature Reserve, Daguanshan Nature Reserve, and the Dongyanshan and Manyueyuan Forest Recreational Areas. This area is strongly affected by the northeast monsoon in winter. Furthermore, the altitude of more than 1,000 meters is another factor contributing to clouds and fog, and low temperature throughout the year. The forest cover still keeps quite intact. Important plant species include natural conifer forests, conifer & broadleaf mixed forests, broadleaf forests, Fagus hayatae forests, man-made forests, second-growth forests, and grasslands. Among these, the broadleaf forests consist of the most extensive forest. The followings are mixed coniferous-broadleaf forests and man-made forest. In this area, the Chatienshan Nature Reserve is one of the least disturbed natural forests in northern Taiwan. Plant and animals species are correspondingly abundant here. This area also forms the major part of the watersheds of both the Shihmen and Feitsui Reservoirs. Daguanshan, Dongyanshan and Manyueyuan are very popular tourist and recreational spots. All the lands within this site are public and managed by Taiwan Forestry Bureau.
IBA A2 criterion species: 13 endemic species are commonly seen here: Formosan Whistling Thrush, Formosan Blue Magpie, Formosan Yellow Tit, Formosan Yuhina, Steere’s Liocichia, Formosan Barwing, White-eared Sibia, Collared Bush Robin, Mikado Pheasant, Swinhoe’s Pheasant, White-throated Hill Partridge, Taiwan Firecrest, and Formosan Laughing Thrush. • At this site, 104 species in 35 families have been recorded. Most of the birds are seen in the broadleaf forests. Forty-one of the recorded bird species are protected including the Indian Black Eagle and Brown Wood Owl are threatened species.
Non-bird biodiversity: • Fagus hayatae is among the 11 rare endemic plant species. A large and pure stand of the species can be found in Lalashan at Taipei and Taoyuan County. This site is the southern-most distribution of this species in the northern hemisphere.
BirdLife International (2020) Important Bird Areas factsheet: North Section of the Hsueshan Mt. Range. Downloaded from http://www.birdlife.org on 26/05/2020.