,2014,稻飞虱迁入初期成虫种群密度的零频率估计方法[J].环境昆虫学报,(5):833-837 |
稻飞虱迁入初期成虫种群密度的零频率估计方法 |
Estimation of the initial adults population density of rice planthopper in zero frequency of method |
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DOI: |
中文关键词: 稻飞虱 简易估计 零频率 种群密度 |
英文关键词:rice planthoppers simple and easy estimates zero frequency population density |
基金项目:广东省科技计划项目(2010B020416004) |
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中文摘要: |
为了在一定精度保证的前提下,简便、快捷地估计稻飞虱迁入初期成虫田间发生情况,本文基于稻飞虱成虫种群发生的田间调查数据,用种群密度m和零频率p0分别拟合Gerrard-Chiang模型、线性函数、二次函数、指数函数、幂函数和对数函数6种不同模型。结果表明,以Gerrard-Chiang模型m=1.2467(—ln p0)1.0721为最优,用其可根据零频率有效地估计稻飞虱迁入初期成虫种群密度。还确定了稻飞虱成虫不同零频率下的理论抽样数,同时进行了具体应用。 |
英文摘要: |
:Gerrard-Chiang model,and the models of linearity,quadratic,exponential,power logarithm were fitted the adults population density m and the zero frequency p0 of rice planthoppers ,based on the data fron binomial sampling. Gerrard-Chiang model,m=1.2467(—ln p0 )1.0721,appeared to be the optimum one and could be used to estimate the larval population density effectively by the zero frequency on tomato planthoppers to move into the early adult,planthopper adults also identified the theoretical zero frequency different sampling number, At the same time a specific application. |
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