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### 达乌尔黄鼠种群空间分布型研究及其应用

1. 内蒙古流行病防治研究所
• 出版日期:2006-07-26 发布日期:2007-09-13

### STUDIES 0N THE PATTERN 0F SPATIAL DISTRIBUTI0N OF CITELLUS DAURICUS POPULATION AND ITS APPLICATI0N

MI Jingchuan, WANG Chengguo

• Online:2006-07-26 Published:2007-09-13

Abstract: This paper is based on the investigation of lower mountain-hilly areas and plain areas in the northeast parts of Inner Mongolia in 1987．The comperative method of frequency distribution was used to study on the pattern of spatial distribution of Citellus dauricus．
The results show that the patterns of spatial distribution of mating stage and young seperating stage of Citellus dauricus belong poisson distribution in four investigating areas when the size of quadrat was 1 hectare(100m ×100m)．The effects of factors restricted by the enviroment and density on pattern of spatial distribution is not obvious． Regression analysis show that the curve relation between population density(m )and the quadrat frequency which the rodents were not captured(Po,) or the quadrat frequency which the rodents were captured(Px) were m =4.5451-0.9672lnP and m=4.5451-0.0672 in(1-Px) respectively．The rasults of x 2-test show that the curves tally with the theoretical curve of poission distribution (x2x2.0.05，df p>0.05)．These results will provide a theoretical basis for estimating the population density．