兽类学报2012，Vol.32Issue(2)：168-174,7.
不同森林类型中社鼠食性和消化道形态变化
Variation in food habits and digestive tract morphology of the Chinese white-bellied rat (Niviventer confucianus) among different forest types
摘要
Abstract
The morphology and physiological function of the digestive tract, which would be influenced by habitat change and food quality, plays an important role in energy absorption and distribution for animals. To explore the effects of forest alteration on food habits and digestive tract morphology of the Chinese white-bellied rat (Niviventer confucianus) , we investigated the variation exhibited, among rats in five different forest habitat types (primary forest, secondary forest, fuel-wood forest, Pinus armandis plantation forest, Larix leptolepis plantation forest). N. Confucianus is primarily seminivorous and carnivorous, however we detected no significant variation in dietary biases among rats in the different forest types. In contrast, while stomach mass did not differ among the forest types, fresh weight including caecum and large intestine contents, fresh weight without caecum and large intestine contents, dry weight of the caecum and large intestine did in exhibit variation but with different trends. Dry weight of the small intestine in secondary forest was significantly higher than in other forest types. Length of large intestine in secondary was longer than that in fuel-wood forest, but was similar to those in other forest types. Similar food habits among different forests correlated to abundant food resources in autumn. The variation in digestive tract morphology is matched to habitat alteration, with benefits for survival, reproduction and recruitment dynamics.关键词
社鼠/消化道/形态/食性/林型变化Key words
Chinese white-bellied rat ( Niviventer confucianus)/ Digestive tract/ Food habit/ Forest alteration/ Morphology分类
生物科学引用本文复制引用
陈文文,钟杰,刘三峡,陈芳清,谢宗强,江广华,周友兵..不同森林类型中社鼠食性和消化道形态变化[J].兽类学报,2012,32(2):168-174,7.基金项目
国家自然科学基金面上项目(30970474) （30970474）
