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鄂尔多斯荒漠草原30多年来鼠类的群落组成,由以草原黄鼠为主、长爪沙鼠次之,渐变为以长爪沙鼠为主,子午沙鼠和草原黄鼠次之。引起鼠类群落演替主要是人类经济活动的结果。动物鼠疫流行亦引起群落组成的变化,致使对鼠疫抗性较高的子午沙鼠数量渐增。动物鼠疫流行前的调查表明,4类生境中以长爪沙鼠的数量最多。鼠疫流行,引起长爪沙鼠数量从多到少急剧变化。
In the past 30 years, the desert grassland of Ordos Basin consisted of rodents mainly composed of prairie gazelle and gerbil gazelle, followed by gibbon gerbil, followed by gerbil gerbil and steppe. The success of rodent communities is mainly the result of human economic activity. The epidemic of animal plague also caused changes in the composition of the community, resulting in an increasing number of Meriones unguiculatus resistant to plague. Prior to the epidemic of the animal plague, the number of gerbils in the four habitats was the largest. The epidemic of plague caused the number of gerbils to change drastically from many to less.