摘要
粪便分析法是食肉动物食性研究的基本方法．采用频率法和剩余物相对干质量法对内蒙古东部也区的狼和大兴安岭地区的紫貂食性进行了研究。结果表明．频率法不能很好地体现出各食物类型在食谱中的相对重要性．较大型的食物项目在频率法中的相对重要性容易被低估．而小型食物则被高估．但这种方法简单易行．并且能很好地反映出捕食者捕食猎物的种类及次数。而剩余物相对干质量法比频率法更能准确地反映实际情况．能较好地体现出各食物项目在捕食者食谱中的相对重要性。
Seats-analysis is the principal method in the study of carnivore food habits. In this paper. thefrequency of occurrence (FO) and the relative tveight of remains of prey types (RW) were used to studyfoe feeding habits of wolves in inner Mongolia and sables in Daxing'an Mountains. Comparative resultsindicated that the FO cannot show the relative importance of every food type. the large-scale prey isalways underestimited. but FO is very simple and easily used. The RW can accurately show the fact andindicate the relative importance of every prey.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1999年第4期53-56,共4页
Journal of Northeast Forestry University
关键词
粪便分析法
食肉动物
食性
评价
eats-analysis
Carnivore
Food habits
Evaluate
