Preliminary Studis On Spiders Fauna Of Heilongjiang Province

The present dissertation deals with the faunal components and distribution characteristics of spiders from parts of The Heilongjiang Province, statistical analysis of the horizontal distribution of spiders from some farmlands of Heilongjiang province and vertical distribution of spiders Mudan Hill are provided. The natural geography condition and research of biodiversity are briefly introduced. A total of 20 families, 34 genera, 50 species of spiders caught in Heilongjiang Province are recorded. And we have collected totally 1 011 samples. Based on the statistic analysis of these spiders, it is found that: Faunal components of the Heilongjiang Province are mainly Palaearctic species, including some Oriental affinities, and there are also some mixed species; preponderant families and genera are in large proportion. The vertical distribution of spiders from Mudan Hill can be divided into three zones, according to comparation, we have found that the low hill zone and the middle mountain belt zone have a high similarity in coefficient, and there're large amount of species. The horizontal distribution of spiders from some farmlands can be divided into three sub-areas, there are lack of different varieties of spiders in Big xing'anling, but similar in changbai mountain area and songliao plain, because of the climate of Big xing'anling. The family,genera and specie are significant in the farmland of Heilongjiang.