Simple capture-recapture models permitting unequal catchability and variable sampling effort.
We consider two capture-recapture models that imply that the logit of the probability of capture is an additive function of an animal catchability parameter and a parameter reflecting the sampling effort. The models are special cases of the Rasch model, and satisfy the property of quasi-symmetry. One model is log-linear and the other is a latent class model. For the log-linear model, point and interval estimates of the population size are easily obtained using standard software, such as GLIM.
Agresti
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Department of Statistics, University of Florida, Gainesville 32611.
D000818:Animals; D000835:Animals, Wild; D001699:Biometry; D007793:Lagomorpha; D015233:Models, Statistical; D011156:Population Density; D011336:Probability; D012984:Software