【摘要】 <正> 鼢鼠(Myospalax fontalierii Milne-Edwsrds)俗称瞎老鼠,为我国黄土高原地区危害农业较为严重的啮齿动物之一。就山西省而言,因其危害造成农业的损失是很可观的。目前,对鼢鼠的数量分布研究较少,而这方面的研究不仅可给防治工作提供科学依据,亦可为进行鼠害区划工作奠定良好基础,同时更具有生态学理论意义。为此,我们于1963年6—9月在滹沱河上游地区开展了鼢鼠数量分布的调查研究(图1)。由于此项工作为初次探索,错误之处在所难免,尚希予以指正。更多还原

【Abstract】 From June to September, 1963, investigation on population density of the mole-rat (Myospalax fontanieri Mi-Eds) in the upper Who-Tuo valley was carried out by the authors, using the massive exhaustive trapping method. From the upper stream downwards, 4 profiles (each including such relief elements as the flood plain, the terrace area and the anterior hillside), amounting to 27 sample plots, totalling 131.17 hectares, were investigated.It was found that the mole-rats were widely distributed in the investigated areas. The number of mole-rats averaged 1.98 ± 0.50 per hectare; that of the flood plain ranked the highest, averaging 2.80 ± 0.51; that of the anterior hillside and the terrace area came next, averaging 1.87 ± 0.24 and 1.52 ± 0.33 respectively. Statistically, F-test revealed a significant difference between the mole-rat density of the flood plain and the terrace area and that of the anterior hillside, and also a significant difference between the mole-rat density of the flood plain and that of the terrace area. No significant differences with respect to the mole-rat density are found between the terrace area and the anterior hillside, nor between the corresponding relief elements of the opposite sides of the river and of the northern and southern sections of the region under investigation.Food condition constitutes a principal ecological factor, which influences the differences in the mole-rat density in the region.Finally, from a statistical treatment of the results of our investigation, the possibility of dividing this region into two molerat-pested areas, i.e., (1) the flood plain, and (2) the terrace area and the anterior hillside, was discussed.更多还原