Avifaunal community structure and species diversity in Tangjiahe National Nature Reserve, China
Understandings of avian resource,community structure and spatial types are the research foundation on the longterm follow-up birding monitoring.This research used three methods including transect line,net capturing and survey interviewing to investigate the avifaunal community structure and species diversity in Tangjiahe National Nature Reserve.A total of 313 avian species were found in the study area,including 182 permanent residents,90 summer residents,19 winter residents,and 22 accident visitors.Among them 6 species were listed in China's National Protected Animals List Class Ⅰ and 42 species in Class Ⅱ.Totally 13 distributional types were found in Tangjiahe,mainly in the Oriental Realm (76 species) and Himalaya-Hengduan Mountains Realm (68 species).The species diversity index was in the order of Evergreen broad-leaved forest > Evergreen and deciduous broad-leaved forest > Mixed broadleaf and conifer forest > Cropland > Subalpine coniferous forest > Alpine bush and meadow.The results showed that the endemic and protected birds were rich in Tangjiahe Nature Reserve.Avifaunal community structure was closely associated with the habitat,and a clear vertical zoning in community structures was found in the different habitats with altitude changing.However,the increase of altitude resulted in reduction of bird diversity.
avifaunacommunity structurebiodiversityTangjiahe National Nature Reservemigration