大沙鼠种群密度与降水量的关系

被引：4

作者：

赵天飙 ^{[1
]}

杨持 ^{[2
]}

周立志 ^{[3
]}

张忠兵 ^{[2
]}

靳飞虎 ^{[4
]}

邬建平 ^{[4
]}

宁恕龙 ^{[3
]}

机构：

[1] 内蒙古大学生命科学学院

[2] 内蒙古地方病防治研究中心

[3] 安徽大学生命科学学院

[4] 包头市达茂联合旗卫生防疫站

来源：

兽类学报 | 2007年 / 02期

关键词：

大沙鼠; 种群密度; 降水量; 预测;

D O I：

10.16829/j.slxb.2007.02.016

中图分类号：

Q958 [动物生态学和动物地理学];

学科分类号：

071012 ; 0713 ;

摘要：

Based on population surveys of great gerbil(Rhombomys opimus)by blocking up the mouseholes and inspecting the opened ones conducted in three different habitats in Tengenor,Damaolianheqi,Baotou City of Inner Mongolia in February,April,June,August,October and December from 2003 to 2005,relationship between density of the great gerbil and rainfall was analyzed.Results showed that population densities of the great gerbil vary with seasons and years,and its density curves have a single peak value every year.A regression equation Y8=-8.7202 + 0.8806X(df=16,r=0.5394>r0.05=0.468)resulted from analyzing the relationship of the density to the rainfall the previous month indicates that the population size of the great gerbil was positively related to the previous month's rainfall.The density occurring in August and October can be predicted by that in April.The forecasting models for the density in August and October are Y8=-1.0925+2.6133X4(df=6,r=0.9776>r0.01=0.834)and Y10=-0.2097+2.4992X4(df=6,r=0.9672>r0.01=0.834)respectively.

引用

页码：195 / 199

页数：5

共 13 条

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