A PRELIMINARY STUDY ON TERRESTRIAL VERTEBRATE DIVISIONS OF ZOOGEOGRAPHICAL AREASIN YUNNAN

The purpose of this paper is to revise and supplement present information regarding;1)Grade One and Grade Two areas of Yunnan zoogeographical areas,2) the foundation of vertebrate divisions of zoogeographical areas of china and 3) the fauna studies of Yunnan. After discussion,the paper puts forward a new idea that there are three,rather than two animal divisions of Yunnan like the previous notion. This new idea is based on Fresh research at previous information including:1) regional divisions brought about by ecological differences of varying areas of Yunnan,2) different vegetation types in Yunnan,and 3) the differences of species and subspecies grades of fauna in Yunnan.Finally,the paper assert that the fauna of Yunnan can be divided into 3 areas of Grade One,4 areas of Grade Two and 10 areas of Grade Three.