The Study Of Grasshopper Diversity In North-east Area

The author chooses 11 representative research places in Northeast area to study the grasshoppers' diversity. 11 places are Changbaishan mountain, Jingbo lake, Songhua Lake, Wudalianchi pond, Daxinanling, Daqinggou, Changling, Xianghai, Momoge, Huanren, Sipingzhuanshanhu.This paper uses the method which unifies the outside investigation and the inside room analysis, to have the correlation analysis on the grasshoppers' fauna composition and assignment of the family and genera in the northeast region, the grasshopper diversity in the different region, the species diversity of Acridodae in different areas and their vegetation types of northeast region, and have the Hierarchical cluster analysis on the grasshopper's physiographic region distribution characteristic.Through the present research indicated the northeast area has known 117 species belongs to 40 genera in 7 families. The 104 species in north of middle age occupy the absolute superiority and plant the class number 88.89%.But Japan species plant few, only 3 kinds, and plant the class number 2.56%.The endemic species are many, 47 kinds, plant the class number 40.07%.This article author studies the 11 places in the northeast region to carry on the rank multiplicity analysis, shows the biggest locust multiplicity in Wudalian pond area and the smallest locust multiplicity in Xianghai area. Studies the Hierarchical cluster analysis on the locust's physiographic region distribution characteristic in the northeast area, shows the biggest correlation between Daqinggou and Huanren,the smallest correlation between Daqinggou and Daxinanling. The correlation analysis on the species diversity of Acridodae in different areas and their vegetation types of northeast region shows the present correlation. Namely vegetation more complex (simple), locust's kind of class number more (are few); But the relevance is not remarkable.The author comparison research the locust multiplicity in 11 different regions and different vegetations, such as the typical prairie, the desert prairie, the wetland, the typical forest region, the farming and forestry interlocks area. Such research provides the science basis for protection of the locust multiplicity in the northeast region and effective prevention on locust. Moreover, it has the important theory significance to the active controlling of locust plague eruption, meanwhile can provide the essential theory basis for the transformation on the environmental condition of locust's region.