Line Transect Sampling in Small Regions |
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Authors: | G. J. Melville A. H. Welsh |
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Affiliation: | New South Wales Agricultural Research Centre, Trangie, Australia. |
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Abstract: | This article develops an approach to estimating population abundance from line transect surveys that uses a calibration survey to estimate the detection function, which is then employed as a weight function in constructing the abundance estimate. Nonparametric methods of estimating the detection function via local regression and via a kernel density estimator are considered. The proposed methods are evaluated using a set of Western Australian plant data and weed enumeration data. |
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Keywords: | Abundance estimation Calibration Detection function Distance sampling Kernel density estimation Line transect |
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