草地学报

›› 1997, Vol. 5 ›› Issue (1): 20-26.DOI: 10.11733/j.issn.1007-0435.1997.01.004

• 研究论文 • 上一篇    下一篇

越冬前布氏田鼠(Microtus brandti)储草行为与储草种类选择的研究

施大钊1, 海淑珍1, 金晓明2, 刘小龙3   

  1. 1. 中国农业大学, 北京 100094;
    2. 呼盟牧干校, 海拉尔 021000;
    3. 锡盟太仆寺旗草原站, 宝昌 027000
  • 出版日期:1997-02-15 发布日期:1997-02-15
  • 基金资助:
    国家自然科学基金

Study on the Behavior Forage and Selection for Storage of Forage plants of Brandt’s Vole (Microtus brandti) Before Overwintering

Shi Dazhao1, Hai Shuzhen1, Jin Xiaoming2, Liu Xiaolong3   

  1. 1. China Agricultural University, Beijing 100094;
    2. Humeng Cader Scool for Aimal Husbandry, Hailaer, 021000;
    3. Taipusi Banner Grassland Station, Baochang 027000
  • Online:1997-02-15 Published:1997-02-15

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摘要： 对典型草原布氏田鼠的储草行为和储草种类的选择性研究结果表明:(1)储草期间各洞系鼠群具有比较稳定的采集“领域”,其范围约400～1200m2;(2)平均每个洞系储草16.8±1.53kg(10.25～19.6kg),即每只鼠平均储草792.5±32.7g,储草仅可供其存活58.7天。由于该鼠在越冬期间的自然死亡率在80%以上(试验期间为83.5%)。故而仍有1/3～1/4的储草残留至翌年春季,在地下霉烂后进入土壤。(3)该地区被传的牧草种类仅3～4种。其中冷蒿的重量占总储量94%以上,选择性指数(PI)达5.67。(4)在低温条件下,饲喂冷蒿的鼠,其死亡;率明显低于饲喂禾草组。田鼠的储草对畜牧业生产,尤其是对绵羊抓膘将造成一定危害。

关键词: 布氏田鼠, 储草, 越冬

Abstract: The samples are set on the investigation of the behavior storage and selection offorages of Brandt’s vole on grassland in southern Xilinguole, Inner Mongolia.The result shown:(1) It has a fair steady "food terriotory" during storage period, about 400~1200m2 for everygroup habitated in a burrow system of the voles; (2) Average 16.8 i l.53kg could be stored in aburrow system, that means 792.5 ±32.7g/vole which only have been had 58-7 days.As over8o% voles could be dead in winter and left 1/4~ 1/3 forage in soil to next spring.(3) Only 3 or 4 plants are stored, index of preference (PI)is 5.76; (4) At low temperature (-10~-15℃),the rate of death is lower evidently feeding Artemisia frhada than feeding of grasses.The storedbehavior had harmful for animal production.

Key words: Brandt’s vole (Microtus brandti), Stored grass, Overwinter