论文部分内容阅读
在我国西北黄土高原的农田里,经常可以看到成片的土丘,这是中华鼢鼠(Myospalax fontanieri)在农田打洞时将所挖掘的土推到地面而形成的.中华鼢鼠俗称瞎老鼠,隶属于啮齿目仓鼠科.其体形与鼹鼠相似,但较粗大,体重平均为369.85g,平均体长19.76cm.前额中央有一醒目的白斑.由于适应于地下挖掘取食,其前足爪十分发达,呈铲状,门齿也很发达,嗅觉和听觉十分敏感,但视力低下,耳壳退化.中华鼢鼠的洞道相当复杂,平时地面洞口被堵塞,看不到洞口,只是在地面形成大小不等的土丘.洞道一般分两部分,一为洞道,另一为窝巢.洞道是觅食所掘的主道,与地面平行,距地面深8~11cm,相当长,占地面积可达35m~2.洞道下方有1~2条向下的通路,直通窝巢.窝巢距地面多在1m以上,分巢、仓库及便所等部分.
In our country’s farmlands in the Northwest Loess Plateau, we can often see patches of mounds formed by the Myospalax fontanieri pushing the excavated soil to the ground when drilling a farmland. The mouse, belonging to the rodent hamster, is similar in shape to the mole but thicker with an average body weight of 369.85 g and an average body length of 19.76 cm, with an eye-catching white spot in the center of the forehead, adapted for underground digging and feeding, Very developed, shovel-like, incisors are also very developed, very sensitive sense of smell and hearing, but poor vision, ear shell degeneration .Chinese zombie tunnel is quite complicated, usually the ground hole is blocked, can not see the hole, but the formation of the ground The size of the mounds of different sizes.The cave is generally divided into two parts, one for the tunnel, the other for the nest.Forest is the main road foraging by digging, parallel with the ground, 8 ~ 11cm deep from the ground, a long, Covers an area of up to 35m ~ 2. Below the tunnel there are 1 to 2 down the pathway, through the nest nest nest more than 1m above the ground, sub-nest, warehouses and conveniences and other parts.