Avian Community Characteristics at Alluvionin Nanjing Section of Yangtze River

During 2004 and 2006,avian communities at four habitat types,village,farmland,woodlot,and wetland,were studied in summer and winter.A total of 67 species belonging to 10 orders,25 families were recorded.Analysis on avian community characteristics was made based on the index of density(D),biomass(E-B),Shannon-wiener index(H'),species evenness(J) and superiority(C).The value of index on density,diversity and evenness in the winter were higher than those in the summer,whereas the index of superiority and biomass were lower in the summer than those in the winter.Woodlot had the highest avian density and diversity and village had the highest superiority among the four habitat types.The highest evenness value was recorded in woodlot during winter and in village during summer.