ROBUST ESTIMATION OF POPULATION-SIZE WHEN CAPTURE PROBABILITIES VARY AMONG ANIMALS
ROBUST ESTIMATION OF POPULATION-SIZE WHEN CAPTURE PROBABILITIES VARY AMONG ANIMALS
复制标题
DOI：
10.2307/1936861
复制
发表时间：
1979-01-01
期刊：
影响因子：
4.8
通讯作者：
OVERTON, WS
中科院分区：
文献类型：
--
作者：
BURNHAM, KP;OVERTON, WS
给出了针对封闭种群的多次重新捕获研究的模型，该模型允许捕获概率因个体而异。假设每个个体的捕获概率随着时间的推移保持不变。基于该模型，给出了人口规模的非参数估计程序。估计器涉及选择一系列估计器中的一个，每个估计器都是捕获频率的线性组合。个体估计量源自广义折刀法。分析了模型假设个体捕获概率在研究期间不会改变的拟合优度检验。通过模拟研究研究了该估计过程的稳健性。在常用的短期活体诱捕研究中，个体捕获概率可能会出现稳健到中等的变化。
A model is given for multiple recapture studies on closed populations which allows capture probabilities to vary among individuals. The capture probability of each individual is assumed to be constant over time. Based on this model, a nonparameteric estimation procedure is given for population size. The estimator involves selecting one of a sequence of estimators which are each linear combinations of the capture frequencies. The individual estimators are derived from the generalized jackknife method. A goodness of fit test for the model''s assumption that individual capture probabilities do not change during the study is analyzed. The robustness of this estimation procedure is investigated with a simulation study. Robust to moderate variations in individual capture probabilities may occur in commonly used short-term livetrapping studies.