干旱区生态环境知识资源中心(Arid): 甘肃民勤治沙站纵纹腹小鹗食性的季节变化

Arid

	甘肃民勤治沙站纵纹腹小鹗食性的季节变化
其他题名	Seasonal variation in diets of the little owl Athene noctua in Minqin Desert Experimental Station, Gansu
	赵伟 1; 宋森 1; 邵明勤 2; 刘迺发 1
ISSN	0001-7302
出版年	2007
卷号	53 期号:6 页码:953-958
中文摘要	分析民勤治沙站纵纹腹小鹗（Athene noctua）食团405块，共鉴定猎物562只。以个体计，民勤小鹗主要取食昆虫，占64．23％；其次为小型哺乳类，占32．38％；也取食少量爬行类（1．96％）和雀形目鸟类（1．42％）。生物量贡献则以小型哺乳类为主，占93．34％。猎物种类组成存在显著的季节变异：取食小型哺乳类的频率存在显著季节差异，冬季最高94．59％，夏季最低17．75％，食物生物量贡献四季均在90％以上，季节变异不显著；昆虫成分出现在除冬季外的其他季节，且取食频率均在65％以上，季节差异显著；爬行类仅出现于夏季食谱中。仅秋季没有发现鸟类成分。分析秋、冬、春三季哺乳类猎物胫骨的量度发现，小鹗取食哺乳类的胫骨长度平均为16．22mm4．72mm（n=112），主要取食Ⅰ（10．01mm-15．00mm）和Ⅱ（15．01mm-20．00mm）等级的猎物（分别58．04％和25．00％）。取食猎物的胫骨长度组成存在季节差异，平均长度以春季最大。民勤地区小鹗一年的食物生态位宽度为2．32，季节间存在变异，以冬季最高为2．99，夏季最低为1．64。一年的食物多样性为1．96，季节间存在变异，冬季最高为2．00。食物种类以夏季最多，秋季最少[动物学报53（6）：953958，2007]。
英文摘要	Pellets of the little owl Athene noctua were collected from the Minqin Desert Experimental Station to analyze its diet. A total of 562 prey individuals were identified from 405 pellets. Little owl fed mainly on beetles (64.23%) and mammals (32.38%). Mus musculus was the most common species of the mammalian prey, which constituted 22% of the total prey. Based on biomass, little owl fed mainly on mammals (93.34%). The most important prey based on biomass were Rhombomys opimus, Meriones meridianus, Cricetulus barabensis, and Mus musculus. Seasonal variation was found in the diet of little owl. Little owl fed mainly on beetles in spring (65.93%) summer (77.47%) and autumn (71.15%), while in winter little owl fed mainly on mammals (94.59%). Reptiles were only found in the summer diet and no birds were found in autumn diet of little owl. The mean length of the left tibia of mammalian prey was 16.22 mm4.72 mm (n=112). Little owl mainly predated on mammals with tibia length of 10.01-15.00 mm and 15.01-20.00 mm, the tibia class comprised 58.04% and 25.00%,respectively. Food niche breadth of the little owl of the little owl was 2.32, which ranged from 1.64 in summer to 2.99 in winter. The food diversity the little owl was 1.96, which ranged from 1.32 in autumn to 2.00 in winter. The results suggested that little owl in Minqin desert was an opportunistic predator.[Acta Zoologica Sinica 53 （6）： 953- 958, 2007].
中文关键词	纵纹腹小鹗 ; 食性 ; 食物生态位 ; 季节变化 ; 食物大小 ; 荒漠
英文关键词	Little owl Athene noctua Diet Food niche breadth Seasonal variation Desert Food size
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:3053777
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220855
作者单位	1.兰州大学生命科学学院, 730000; 2.江西师范大学生物系, 330022
推荐引用方式 GB/T 7714	赵伟,宋森,邵明勤,等. 甘肃民勤治沙站纵纹腹小鹗食性的季节变化[J]. 兰州大学,2007,53(6):953-958.
APA	赵伟,宋森,邵明勤,&刘迺发.(2007).甘肃民勤治沙站纵纹腹小鹗食性的季节变化.,53(6),953-958.
MLA	赵伟,et al."甘肃民勤治沙站纵纹腹小鹗食性的季节变化".53.6(2007):953-958.