Empirical investigation about statistical properties of abundance estimates based on line-intercept and network sampling of tracks |
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| Authors: | Lorenzo Fattorini Marzia Marchesselli |
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| Affiliation: | (1) Dipartimento di Metodi Quantitativi, Università di Siena, P.zza S.Francesco 8, 53100 Siena, Italy |
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| Abstract: | Line-intercept sampling (Becker, 1991) and network sampling (Becker et al., 1998) seem to be the most appropriate procedures for estimating animal abundance in a study area on the basis of tracks. The purpose of this paper is to investigate the statistical properties of these alternative procedures by constructing confidence intervals for abundance and comparing the interval performances in terms of width and coverage. |
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| Keywords: | Abundance estimation line-intercept sampling network sampling variance estimation asymptotic distribution confidence intervals |
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