上海化工区 2 种类型湿地鸟类群落结构差异及影响因素.

In order to examine the differences in bird community structure between artificial wetlands and natural wetlands in Shanghai Chemical Industry Park, and to analyze the key factors affecting bird distribution, a sampling point method was used to investigate the birds of the two types of wetlands. The results showed that total bird species (90 species) and Shannon-Weiner index (3. 28) in the artificial wetlands were higher than those in the natural wetlands (83 species and 2. 97), respectively. However, the diversity index of families and genera (0. 681) was lower than that of natural wetlands (0. 686). There were more songbirds in the artificial wetlands(60 species)than in the natural wetlands (39 species),but more raptors(4 species),wading birds(25 species)and swimming birds(8 species)in the natural wetlands than in the artificial wetlands(1 species,19 species and 2 species). The Shannon-Weiner indexes of songbirds (2. 915) and climbers (1. 088) in the artificial wetlands were higher than those in natural wetlands (2. 171 and 0. 861), but the Shannon-Weiner indexes of land birds (0. 614), raptors (1. 330), wading birds (1. 825) and swimming birds (1. 672) in the natural wetlands were higher than those in artificial wetlands (0. 530, 0, 1. 819, 0. 300), respectively. The forest bird species (69 species) and Shannon Weiner Index (3. 030) in artificial wetlands were higher than those in natural wetlands (50 species, 2. 347), the waterbird species (33 species) and Shannon Weiner Index (2. 429) in natural wetlands were higher than those in artificial wetlands (21 species, 1. 911). The national key protected bird species (7 species) and Shannon Weiner index (1. 482) in natural wetlands were higher than those in artificial wetlands (2 species, 0. 562). Negative binomial regression analysis showed that hard ground was negatively correlated with bird species and number,respectively. Tree species was positively correlated with bird species,and water area was positively correlated with bird number. Suggest reducing the hard ground,increasing the area of natural wetland trees and shrubs, and controlling the expansion of artificial wetland reeds. [ABSTRACT FROM AUTHOR]