Including spatial contiguity information in the analysis of multispecific patterns |
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| Authors: | Grazia di Bella Giovanna Jona-Lasinio |
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| Institution: | (1) Dipartimento di Statistica, Probabilità e Statistiche Applicate University of Rome  La Sapienza , P.le Aldo Moro 5, 00185 Rome, Italy |
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| Abstract: | In this paper we analyse an ordination method in which spatial contiguity information is included. The original method, proposed by Ver Hoef and Glenn-Lewin (1989), is extended, using graphs to describe spatial contiguity for several sampling schemes where locations are given. Extensions for two dimensional grids and for the case of discrete measures of abundance are analysed. Applications to simulated transect frequency data and real data collected on a regular grid are reported. |
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| Keywords: | Local covariance multi-scale pattern analysis spatial statistics ordination methods |
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