比较厦门东屿红树林区两次鸟类调查数据(2002年1月~2003年1月与1996年1月~1997年1月),分析当地生境的变化对鸟类物种组成及主要鸟类类群数量的影响.与1996年相比,2002年的鹭类、鸥类和鸭类年累计数量分别从2 4443、023和873只减少到352、73和10只,而鸻鹬类从3 088只增加到5 478只.滩涂、红树林面积减少及人为活动增加是鹭类、鸥类和鸭类数量减少的主要原因,而鸻鹬类数量增加与新增荒废裸地生境为其提供理想休息场所关系密切.By comparing the data of birds between in 2002-01~2003-01 and in 1996-01~1997-01 at Dongyu mangrove areas,Xiamen,the effect of environment changing on bird′s species,quantity was analyzed.The exploitation resulted in diversification of habitat type which increasing some bird species,on the other hand,mangrove and mudflat reducing resulted in disappear of some species.64 bird species were recorded in 1996-01~1997-01 and 72 species were recorded in 2002-01~2003-01.There were 44 different species in the two indagations,among which 26 new species appearing and 18 species disappearing in 2002-01~2003-01.The habitat changing also resulted in the dominant species changing.Ardeola bacchus,Casmerodius albus,Tringa tetanus,Tringa nebularia,Larus ridibundus and Anas crecca were dominant species in 1996-01~1997-01,but they were not dominant species in 2002-01~2003-01,Charadrius leschenaultia and Passer montanus were new increased dominate species in 2002-01~2003-01.The quantity of some main water-bird flocks were changed sharply from 1996 to 2002.By comparing with 1996,the quantity of herons,ducks and gulls in 2002 was from 2 444,3 023 and 873 reduced to 352,73 and 10,but the quantity of chardrii was increased form 3 088 to 5 478.Some reasons that lead to the changing of birds were discussed in paper.国家自然科学基金(40276028);; 厦门大学科技创新项目(XDKJCX20041021)资
