贺兰山西坡鼠种内脏重量与海拔梯度关系研究

Study on the Relationship of Mass of Ordentine Organs and Elevation Gradient in West Slope of Helan mountains

采用铗日法对贺兰山西坡鼠类的内脏重量与海拔梯度关系情况进行了细致研究。选取8条典型沟道为样线,共布设有效铗日18 748个,捕获鼠类235只。阿拉善黄鼠和大林姬鼠在所有海拔梯度均有分布,其次是社鼠、灰仓鼠和短尾仓鼠,海拔分布范围最小的是高山鼠兔和东方田鼠。阿拉善黄鼠的肺脏和肾脏重量高海拔重量远高于低海拔重量,显示出了其对外界环境的超强适应能力。

Trap-day method was adopted to carefully detailed studies on the relationship of mass of ordentine organs and elevation gradient in west slope of Henlan mountains. 18 748 effective traps were laid in 8 typical gullies, and 235 rodents were caught. Spermophilus alashanicus and Apodemus peninsulae were distributed at all altitudinal gradients, followed by Niviventer confucianus、Cricetulus migratorius and Cricetulus eversmanni, Microtus fortis and Ochotona alpina was distributed at the smallest range of elevation. The high altitudinal weight of the lungs and kidneys of Spermophilus alashanicus is much higher than that of low altitude, showing its superior adoptability to the external environment.