Abstract

The technique of estimating wildlife population size and density using the belt or line—transect sampling method has been used in many past projects, such as the estimation of density of waterfowl nesting sites in marshes, and is being used currently in such areas as the assessment of Pacific porpoise stocks in regions of tuna fishing activity. A mathematical framework for line—transect methodology has only emerged in the last 5 yr. In the present article, we extend this mathematical framework to a line—transect estimator based upon a log—linear model approach.

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