Article ID Journal Published Year Pages File Type
1151293 Statistical Methodology 2007 9 Pages PDF
Abstract

Estimating population sizes by the catch-effort methods is of enormous importance, in particular to harvest animal populations. A unified mixture model is introduced for different catchability functions to account for heterogeneous catchabilities among individual animals. A sequence of lower bounds to the odds that a single animal is not caught are proposed and used to define pseudo maximum likelihood estimators for the population size. The one-sided nature of confidence intervals is discussed. The proposed estimation methods are presented and illustrated by numerical studies.

Related Topics
Physical Sciences and Engineering Mathematics Statistics and Probability
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