巴基斯坦旁遮普中部仓鸮食性的季节性变化(英文)  

Seasonal variation in the diet of the barn owl Tyto alba stertens in central Punjab, Pakistan

作　　者：Muhammad MAHMOOD-UL-HASSAN Mirza Azhar BEG Habib ALI 

机构地区：[1]Department of Wildlife and Ecosystem, University of Veterinary and Animal Sciences, Syed Abdul Qader Jilani Road, Lahore 54000, Pakistan [2]Department of Zoology and Fisheries, University of Agriculture, Faisalabad, Pakistan [3]Pakistan Museum of Natural History, Islamabad, Pakistan

出　　处：《动物学报》2007年第3期431-436,共6页ACTA ZOOLOGICA SINICA

摘　　要：在巴基斯坦对仓鸮食性的季节变化进行了研究。通过分析连续3年在6个地区搜集的2 360个仓鸮回吐食物团,发现其食物主要是小型哺乳动物(95.6 %)。其中,家(Suncus murinus)有最高的比例,达65.6%(冬季最多78%,夏季最少27%)。就生物量而言,小型哺乳动物占仓鸮食物总生物量的99% 。　 Seasonal and climatic changes influence the diet of the barn owl Tyto alba throughout its range. We conducted the first long-term study in Pakistan to understand seasonal changes in the diet of this raptor. Regurgitated pellets （n=2 360） were collected for three years from six districts of central Punjab. An analysis of these pellets revealed that the barn owl depended mainly on small mammals （95.6%） for its food. The house shrew Suncus murinus was the main food item （65.6%） in its diet. It was the most common prey item in winter （78%） and was consumed the least during summer （27%）. This seasonal rise and fall in the frequency of shrews in the diet was related to an inverse pattern of rise and fall in the frequency of rodents, birds and bats. Small mammals contributed 99% of the biomass consumed by the barn owl[Acta Zoologica Sinica 53（3）：431-436,2007].

关 键 词：仓鸮 食性 家 回吐食物团 鼠类 

分 类 号：Q958[生物学—动物学]