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- Title
Optimizing interpolation of shoot density data from a Posidonia oceanica seagrass bed.
- Authors
Scardi, Michele; Chessa, Lorenzo A.; Fresi, Eugenio; Pais, Antonio; Serra, Simone
- 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.
- Subjects
SARDINIA (Italy); ITALY; POSIDONIA oceanica; POSIDONIACEAE; MEADOWS; NONLINEAR theories; NUMERICAL analysis; INTERPOLATION; HAUSDORFF measures; MEASURE theory; MARINE ecology
- Publication
Marine Ecology, 2006, Vol 27, Issue 4, p339
- ISSN
0173-9565
- Publication type
Article
- DOI
10.1111/j.1439-0485.2006.00116.x