0000000000307195

AUTHOR

Francesco Spada

showing 2 related works from this author

Finite Mixture Model-based classification of a complex vegetation system

2020

Aim: To propose a Finite Mixture Model (FMM) as an additional approach for classifying large datasets of georeferenced vegetation plots from complex vegetation systems. Study area: The Italian peninsula including the two main islands (Sicily and Sardinia), but excluding the Alps and the Po plain. Methods: We used a database of 5,593 georeferenced plots and 1,586 vascular species of forest vegetation, created in TURBOVEG by storing published and unpublished phytosociological plots collected over the last 30 years. The plots were classified according to species composition and environmental variables using a FMM. Classification results were compared with those obtained by TWINSPAN algorithm. …

0106 biological sciencesforest vegetationSoil scienceMixture model010603 evolutionary biology01 natural sciencescluster analysis finite mixture model forest vegetation Italian peninsula vegetation plotsEnvironmental sciencesvegetation plotscluster analysis finite mixture model forest vegetation Italian peninsula vegetation plotscluster analysis; finite mixture model; forest vegetation; Italian peninsula; vegetation plotsmedicineGE1-350finite mixture modelmedicine.symptomVegetation (pathology)Italian peninsulacluster analysis010606 plant biology & botanyMathematicsVegetation Classification and Survey
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VegItaly: The Italian collaborative project for a national vegetation database

2012

Abstract Two years after its official start, the national vegetation database VegItaly, a collaborative project supported by the Italian scientific community and developed by a large group of scientists, is presented. This article offers a concise overview of the content of the database, currently consisting of 31,100 vegetation plot, including published and unpublished data. Some basic statistics are analysed; for example, data distribution in space and time, represented vegetation types expressed as physiognomic categories. Although rather young and still in progress, VegItaly already contains data from all the Italian regions and stands as an optimal candidate for the development of an I…

phytosociologyDistribution (economics)relevéPlant ScienceBiodiversity informaticscomputer.software_genrePlot (graphics)Vegetation typesBiodiversity informatics; database; phytosociology; relevé; vegetation plotmedicinedatabaseEcology Evolution Behavior and SystematicsDatabasebusiness.industrybiodiversity informatics; database; phytosociology; relevé; vegetation-plotbiodiversity informatics; database; phytosociology; releve; relevé; vegetation plot; vegetation-plotGeographyBiodiversity informatics database phytosociology releve´ vegetation plotSettore BIO/03 - Botanica Ambientale E ApplicataBiodiversity informaticmedicine.symptombiodiversity informaticsvegetation-plotLarge groupbusinessVegetation (pathology)computervegetation plot
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