大麝鼩能量生态初步研究

Preliminary Study on EcologiCal Energetics of Crocidura lasiura

大麝鼩(Crocidura lasiura)是一种分布较广的食虫目动物,以往的工作仅限于对其形态及分布的描述。目前大麝鼩不仅成为上海地区农田生态系统中鼠形小兽群落内的优势种,而且也是当地流行性出血热(EHF)的主要传染源之一。但对其生态学研究几乎是空白。近年来,我们对大麝鼩的繁殖、食性和越冬等生态问题作了报道。

Through measuring the oxygen consumption and energy budget of Crocidura lasiura in summer and winter, following results are obtained: 1.The oxygen consumption of C.lasiura is lower in winter than in summer under the same temperature controlled in lab.,but under natural ambient temperature, the oxygen consumption of C.lasiura is significantly higher in winter than in summer (p<0.01). 2. The food intake of C.lasiura is higher in winter than in summer, and the energy intake in winter and in summer corrected by W^(0.75) are significantly different (p<0.05). 3. Both the digest efficiency and assimilation efficiency are lower in winter than in summer, with significant differences between these two seasons (p<0.05).