保定城区越冬长耳鸮的食性研究

通过对保定城区越冬的长耳鸮种群食性分析,观察到其食物组成中以鼠类为主,黑线仓鼠、黑线姬鼠、大仓鼠、褐家鼠、小家鼠和田鼠等占其食物总量76.29％。借此分析保定城郊鼠的种类及动态,指出黑线仓鼠为该地各月份中的优势种。越冬长耳鹗捕食的鼠主要是亚成体、成体,占捕食总鼠量的68.58％,能有效地起到控制鼠类种群数量增殖的作用。

Studies on Feeding Habits of Long-Eared Owls Surviving Winter in Baoding

In Baoding City the rodents are major in the food of Surviving winter Long-eared owls.About 76.29% of all amount.it is obvious that Cricetinae barabensis are surperiority sort in Baoding. Adult of the Long-eared owls seize are 68.58% of all amount of rodents, the long-eared owls are effectively control addition of rodent sorts quantity.