%0 Journal Article
%T Seasonal variations of digestive tract length and weight of Niviventer confucianus in Dongting Lake region<br>洞庭湖区社鼠消化道长度和质量的季节变化
%A ZHANG Mei-wen
%A WANG Yong
%A LI Bo
%A HUANG Huang
%A <br>张美文
%A 王勇
%A 李波
%A 黄璜
%J 生态学杂志
%D 2007
%I 
%X The study showed that there existed obvious seasonal variations in the digestive tract length and weight of Niviventer confucianus in Dongting lake region. The fresh weight of digestive tract with contents and the fresh and dry weights of the tract without contents were higher in winter and spring than in summer and autumn. As for different organs of the tract, stomach showed significant seasonal variation of its length, being the shortest in winter and longer in summer and autumn, which was the response of N. confucianus to take more food to fit the energy needs for reproduction and to meet the abundant food in summer and autumn. The length, fresh weight with and without contents, and dry weight without contents of other organs (small intestine, caecum and large intestine) were larger in winter and spring than in summer and autumn, an adaptive response to the low temperature and food deficiency in winter and spring. It was suggested that N. confucianus had strong capability in adjusting its gastrointestinal volume and size to adapt to the seasonal changes of ambient temperature and food resources.
%K Niviventer confucianus
%K digestive tract
%K seasonal variation
%K Dongting Lake region<br>社鼠
%K 消化道
%K 季节变化
%K 洞庭湖区
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=B04840A985D251F36078BD07A90EF003&aid=605A07733518B5AC&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&sid=1D0FA33DA02ABACD&eid=5C3443B19473A746&journal_id=1000-4890&journal_name=生态学杂志&referenced_num=1&reference_num=36