Improved log‐linear model estimators of abundance in capture‐recapture experiments |
| |
Authors: | Louis‐Paul Rivest Tina Lvesque |
| |
Institution: | Louis‐Paul Rivest,Tina Lévesque |
| |
Abstract: | The authors review log‐linear models for estimating the size of a closed population and propose a new log‐linear estimator for experiments having between animal heterogeneity and a behavioral response. They give a general formula for evaluating the asymptotic biases of estimators of abundance derived from log‐linear models. They propose simple frequency modifications for reducing these asymptotic biases and investigate the modifications in a Monte Carlo experiment which reveals that they reduce both the bias and the mean squared error of abundance estimators. |
| |
Keywords: | Asymptotics generalized linear model multinomial distribution Petersen estimator removal model |
|