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哺乳类动物数量调查中的截线抽样法与逆向截线法

陈华豪, 常虹   

  1. 东北林业大学
  • 出版日期:2011-11-23 发布日期:2011-11-22

THE LINE TRANSECT SAMPLING METHOD AND INVERSE LINE TRANSECT METHOD OF WILDLIFE POPULATION SURVEY

CHEN Huahao, CHANG Hong   

  1. Northeast Forest University
  • Online:2011-11-23 Published:2011-11-22

摘要: 文本介绍了可用于哺乳动物数量调查的一种新方法——截线抽样法,并在此方法的基础上,结合我国动物调查实践,提出了逆向截线法。逆向截线法在贺兰山自然保护区马鹿数量调查中,取得了较好效果。

关键词: 截线抽样, 逆向截线抽样, 探测函数, 种群密度

Abstract: The line transect sampling method based on perpendicular distance is discussed here to estimate the abundance of wild-life population. Using the concept of detection function, several formulas on calculating density of population and it's sampling variance, depending on some different situations are given.Based on the principle of line transect sampling method,we have proposed a method to estimate abundance of wildlife population, called "Inverse line transect method".We illustrate this method using the data of dropping of red deer from Helan Mountain Natural Reserve Area and adopt the negative exponential density function as detection function.

Key words: Line transect sampling, Inverse 1ine transect sampling, Detection function, Density of population