Species abundance estimation using point-to-plant sampling in a design-based setting |
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Authors: | Lucio Barabesi Marzia Marcheselli |
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Affiliation: | (1) Dipartimento di Metodi Quantitativi, Università di Siena, P.zza S. Francesco 17, 53100 Siena, Italy |
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Abstract: | A new species abundance estimator is proposed when point-to-plant sampling is adopted in a design-based framework. The method is based on the relationship between each species abundance and the probability density function of the relative squared point-to-plant distance. Using this result, a kernel estimator for species abundance is provided and the nearest neighbor method is suggested for bandwidth selection. The proposed estimator requires no assumptions about the species point patterns nor corrections for sampling near the edges of the study region. Moreover, the estimator shows suitable statistical properties as well as good practical performance as is shown in a simulation study. |
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Keywords: | species abundance estimation point-to-plant sampling kernel estimation nearest neighbor bandwidth selection |
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