Habitat use of Syrmaticus humiae in Nanhua Part of Ailaoshan National Nature Reserve in spring

Key words: 
• zoology /
• Syrmaticus humiae /
• habitat use /
• principal component analysis /
• Ailaoshan National Nature Reserve

Abstract: From February to April in 2004 , a field survey of spring habitats of Hume's pheasant (Syrmaticus humiae)in Nanhua part of Ailaoshan National Nature Reserve was conducted .The results were as follows :(1)There were three types of spring habitats of Hume's pheasant , i .e .evergreen broadleaf forests , sparse shrubs and young pine plantations .The first two types were main habitats of Hume's pheasant .(2)The main topographical characters of habitats of Hume's pheasant were higher altitudes , eutropic and steeper slopes , shorter distance to water source , and longer distance to road .Main species of arbors included Fagaceae and Theaceae with small average diameter at breast height and lower average height , lower coverage and density .Main species of shrub included Theaceae and Salicaceae with taller height and lower density .Main species of herb included Violaceae , Rosaceae and Compositae with higher density .Coverage of leaf litter was lower .(3)Herbage layer and shrub layer which offered large quantity of food resources and good concealments respectively played more important roles than arbor layer .The density of herbage layer and the coverage of shrub layer were the main factors affecting the habitat use of Hume's pheasant .[ Ch , 3 tab .20 ref .]