摘要
2011年5～10月在内蒙古呼伦贝尔市海拉尔东山,对达乌尔黄鼠的12个未哺乳达乌尔黄鼠洞穴进行挖掘和测量.结果显示：达乌尔黄鼠洞穴有临时洞（夏季洞）和居住洞（冬眠洞）两种,洞穴的洞口朝向一般为西北或东北方向.临时洞的结构较简单,多数只有一个洞口;冬眠洞的结构较复杂,冬眠洞的洞口光滑,洞口宽度一般为6～9cm,洞口近处的洞道斜向下方,然后急转向下,近乎垂直,接着斜行一段入巢.洞穴深度多为90～100 cm,洞穴总长为110～126 cm,分叉较少,洞道中部的巢穴形状扁平,巢穴中絮有碎草、塑料、泡沫等.巢穴附近有厕所,大多数达乌尔黄鼠洞穴有盲洞,盲洞位于离洞口30～60 cm处.
From May to October in 2011, the caves of twelve non-breeding Citellus dauricus were dug and measured in Hailar East Mountain in Hulunbuir city of Inner Mongolia. The results were as follows： the caves of Citellus dauricus were classified into two categories, namely temporary holes （summer holes） and live holes （hibernation holes）. The entrance direction of the caves was towards the northwest or northeast. Temporary hole in structure was simple and majority of temporary holes only had one entrance, while hibernation hole in structure was more complex and the entrance of hibernation holes was smooth. The mean width of the entrances of hibernation holes was usually from 6 to 9 cm. The tunnels near the cave entrance slanted to the below, and turned sharply downward, almost vertical, and then slanted a distance till into the nest. The mean depth was from 90 to 100 cm. The overall length of a cave was approximately from 110 to 126 cm. Bifurcation of the caves was less and the nest shape of the middle tunnel was fiat. The nests were padded with crushed grass, plastic and foam, and the toilets were near the nests. Most of the caves of Citellus dauricus had a blind hole, which located away from cave entrance at 30 to 60 cm.
出处
《广东农业科学》
CAS
CSCD
北大核心
2014年第1期67-70,共4页
Guangdong Agricultural Sciences
关键词
达乌尔黄鼠
洞穴
结构
Citellus dauricus
cave
structure
