The Research Of Birds Distribution Pattern In Guangxi Beibu Gulf Economic Zone

Biodiversity has a great significance, and species diversity is one of the major contents of biodiversity. Species diversity can be used to analysis the distribution pattern of some organism taxa. It has carried out the research of distribute pattern about animals in International and national. This papers mainly choosed the datas of birds distribution in16Investigations in Guangxi Beibu Gulf economic zone. By the G-F index, Principal component analysis, Cluster analysis and β diversity index, then we used SPSS software to deal with datas. The papers mainly analysised four respects as following:(1)405bird species, belonging66families17orders were recorded in Guangxi Beibu Gulf economic zone. By project phase and family level in principal component analysis, as discussing distribution of pattern about birds in Guangxi Beibu Gulf economic zone, the Passerine and Charadriiformes were the main reference point.(2) We divide the16Investigations to the two major categories of groups by cluster analysis. The first group included the nature reserve of Shankou mangrove Nature Reserve, wetlands of mangrove in Tieshan port of Beihai, Nature Reserve of Beilun Estuary, the reservoir wetlands of Xingdao reservoir, the port of east and west in Fanchenggang, the reservoir wetlands of Fengting river, the nature reserve of Qinzhou Maowei mangrove, the estuary wetlands of Nanliu river, the reservoir wetlands of Xijin, the nature reserve of bird of the Weizhou island, the Xieyang island, and so on. The second group included the nature reserve of Nongla, the nature reserve of Wuming Sanshiliunong, the nature reserve of Fanchenggang camellia, the nature reserve of Shiwan mountain, the nature reserve of Shanlin Longshan, the nature reserve of Damingshan, and so on.(3) In Guangxi Beibu Gulf economic zone, the waterbird and Passerine had a large number, which all had the gradient of spatial levels. But the waterbird had severely time change in different seasons. And the time change of Passerine were not obviously as the waterbird.(4) The birds of time distribution pattern in Guangxi Beibu Gulf economic zone was mainly performance that:It had differences in time distribution pattern between coastal areas and inland areas. The time distribution pattern of waterbird were most important in coastal areas. And the time distribution pattern of Passerine were most important in inland areas. The mainly feature of space distribution pattern were that the bird species diversity performance had the changes of gradient level when follow the horizontal gradient. From ocean to inland, the number of waterbird decreased, but the number of non-waterbird increased. The two ones were negative correlation.In addition, the papers also discussed the reasons of bird distribution pattern in Beibu Gulf economic zone. It analysised the limition and inadequate of the papers. It also gave suggestions when studied on the bird distribution patterns, which were based on the basis datas in Guangxi Beibu Gulf economic zone.