两栖类种群数量的快速调查与分析方法

doi:10.19741/j.issn.1673-4831.2019.0065

摘要/Abstract

摘要：

准确快速地评估两栖动物的种群数量是目前两栖动物监测研究中的一项紧迫任务。该文介绍了一种利用繁殖点调查法与被动集成应答器（PIT）标记重捕法相结合的种群评估方法，仅需获得短期两栖动物重捕数据，基于开放式种群的标记重捕模型分析，就可以得到较为准确的两栖动物繁殖种群数量。该调查与分析方法有如下优点：繁殖点调查法利用了两栖动物集群繁殖的生物学习性，克服了个体分布不集中的难点；以繁殖种群为调查对象，避免了不同季节的种群数量的波动；基于PIT标记在个体识别方面的优越性，通过多次重捕可以快速准确地评估两栖动物的种群数量。以四川省平武县老河沟自然保护区内的中华蟾蜍为代表物种，以5 d野外调查的标记重捕数据准确快速地估算其种群数量。该方法提供了一种简洁有效的种群数量调查方法，对于珍稀物种的评估具有较高的价值。

关键词: 两栖动物, 种群数量, 标记重捕法, POPAN模型

Abstract:

Amphibian are declining worldwide, and it is an urgent task to accurately and rapidly assess the population size of amphibian through monitoring program. This study employed an estimation method to assess the breeding population size of amphibian, which includes surveys at breeding sites and PIT (passive integrated transponder) mark-recapture method. This method provides accurate population size based on short-term mark-recapture data and capture-mark-recapture model for that open populations. The method also offers several advantages:surveys at breeding sites overcome the difficulty that individual distribution is not concentrated at non-breeding seasons. Also, it can avoid the fluctuation of population size in different seasons. Based on the superiority of PIT marker in individual identification, the population size of amphibians can be evaluated quickly and accurately by several times recapture. This model was applied to a five-day capture-mark-recapture data set of toad (Bufo gargarizans) in Laohegou Nature Reserve of Pingwu County, Sichuan Province, and the population size was estimated. This method provides a simple and effective method for amphibian population monitoring, which is of great value to the assessment of rare species.

Key words: amphibian, population size, capture-mark-recapture, POPAN model

中图分类号:

熊姗, 张海江, 李成. 两栖类种群数量的快速调查与分析方法[J]. 生态与农村环境学报, 2019, 35(6): 809-816.

XIONG Shan, ZHANG Hai-jiang, LI Cheng. A Method for Rapid Survey and Analysis in Estimating Amphibian Population[J]. Journal of Ecology and Rural Environment, 2019, 35(6): 809-816.

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