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Optimizing interpolation of shoot density data from a Posidonia oceanica seagrass bed

Scardi, Michele and Chessa, Lorenzo Antonio and Fresi, Eugenio and Pais, Antonio and Serra, Simonetto (2006) Optimizing interpolation of shoot density data from a Posidonia oceanica seagrass bed. Marine Ecology, Vol. 27 (4), p. 339-349. eISSN 1439-0485. Article.

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DOI: 10.1111/j.1439-0485.2006.00116.x

Abstract

A case study on the optimization of Posidonia oceanica density interpolation, using a data set from a large meadow at Porto Conte Bay (NW Sardinia, Italy), is presented. Ordinary point kriging, cokriging and a weighted average based on inverse square distance were used to interpolate density data measured in 36 sampling stations. The results obtained from different methods were then compared by means of a leave-one-out cross-validation procedure. The scale at which interpolation was carried out was defined on the basis of the Hausdorff dimension of the variogram. Optimizing spatial scale and data points search strategy allowed obtaining more accurate density estimates independently of the interpolation method.

Item Type:Article
ID Code:1886
Status:Published
Refereed:Yes
Uncontrolled Keywords:Density, geostatistics, Hausdorff dimension, interpolation, Posidonia oceanica, Sardinia
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/20 Zoocolture
Area 05 - Scienze biologiche > BIO/07 Ecologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze zootecniche
Publisher:Blackwell / Wiley
eISSN:1439-0485
Deposited On:18 Aug 2009 10:06

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