Community structure and diversity of birds in Meijiang River Valley
In order to investigate the bird community of Meijiang river valley in Guangdong Province, the fixed sample-strip and sample-spot methods were adopted. It was showed that there were 201 species belonging to 127 genera, 49 families, 16 orders of birds were recorded, among which, there were 81 species of resident birds (40.1% of the total), 67 species of winter migrant(33.3% of the total),40 species of summer migrant 19.9% of the total), and 13 species of passing migrant (6.7% of the total). Among them 95 species (47.3%) belonged to palaearctic species, 64 species (31.8%) belonged to oriental species, 42 species (20.9%) belonged to widespread species. 1 species was National Class I protected, 21 species were National Class II protected, 24 species (12%) ranked in Protected Bird List by the Convention on Wetlands,22 species (11%) ranked in the migratory birds protection agreement of Smo-Australian, 76 species (38%) ranked in the migratory birds protection agreement of Sino-Japan, 19 species (9%) ranked in the CITES, and 155 species were useful and important economic value, have important scientific research value of the species. The diversity index of birds community in Meijiang river valley was 3.761 7 and the evenness index was 0.709 3.