Data-Processing In Phytosociology - Van Der Maarel E. (Curatore); Orloci L. (Curatore); Pignatti Sandro (Curatore) | Libro Springer 11/2011 - HOEPLI.it


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van der maarel e. (curatore); orloci l. (curatore); pignatti sandro (curatore) - data-processing in phytosociology

Data-processing in phytosociology Report on the activities of the Working Group for data-processing in phytosociology of the International society for vegetation science, 1969–1978

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Dettagli

Genere:Libro
Lingua: Inglese
Editore:

Springer

Pubblicazione: 11/2011
Edizione: Softcover reprint of the original 1st ed. 1980





Trama

(RANKIN) of equivocation information (1-:) and interaction information (M). The method is described in the present paper for I: and in a previous paper (Orloci, 1976) for M. The results presented in this paper suggest that for Species Rank order Information Percentage of total* species to be weighted according to their suitability to I· M I M r M characterize isolated groups of releves in a phytosociolo­ 5 7 54.15 2.31 17.97 0.82 gical table, the equivocation information may serve as a 9 5 49.86 23.19 16.55 8.22 3 3 9 47.79 0.56 15.86 0.20 suitable weight. The appropriate formulations are derived 6 4 8 36.18 1.18 12.01 0.42 4 5 3 24.36 59.34 8.09 21.03 and computed for some data from a salt marsh community. 8 6 4 24.25 39.04 8.05 13.84 10 7 I 21.96 71.17 7.29 25.23 7 8 2 18.67 69.01 6.20 24.46 9 10 18.40 6.11 10 6 5.64 16.31 1.87 5.78 References Total 301.00* 282.11 * 100.00 100.00 Feoli, E. 1973. An index for weighing characters in monothetic classifications. (Italian with English summary). Giorn. Bot. Ita!' 107: 263-268. Gower, J.e. 1967. A comparison of some methods of cluster is a monotone, increasing function of sample size if .. ).




Sommario

Data-processing in phytosociology: Retrospect and anticipation.- TRGRPS—An interactive algorithm for group recognition with an example from Spartinetea.- Deux applications en phyto-écologie de la notion de limite ‘optimale’.- A system for coding plant species for data-processing in phytosociology.- A numerical classification of European Spartina communities.- Une utilisation possible de l’arbe de portée minimale en phyto-écologie.- On the resolving power of principal component analysis in plant community ordination.- A criterion for monothetic classification of phytosociological entities on the basis of species ordination.- The concept of structure in phytosociology with references to classification of plant communities.- Delimitation and ranking of floristic-sociological units on the basis of relevé similarity.- Application of constancy-species groups for numerical ordering of phytosociological tables - The synoptic table version.- Ranking species based on the components of equivocation information.- A phytosociological survey of the Irish Molinio-Arrhenatheretea using computer techniques.- TABORD: A program for structuring phytosociological tables.- Automatic classification of phytosociological data on the basis of species groups.- Transformation of cover-abundance values in phytosociology and its effects on community similarity.- Relevé ranking based on a sum of squares criterion.- Hierarchical classification of European sail marsh vegetation based on numerical methods.- Analysis of concentration and detection of underlying factors in structured tables.- Intersection analysis in phytosociology: Computer program and application.- CLUSLA: A computer program for the clustering of large phytosociological data sets.- Elements for a system of data processing in phytosociology and ecology.- Data-processing in phytosociology: conclusions and perspective.- Survey of salt marsh relevés included in the data-bank of the working-group for data-processing.- References to original publications in Vegetatio.







Altre Informazioni

ISBN:

9789400991965

Condizione: Nuovo
Collana: Advances in Vegetation Science
Dimensioni: 297 x 210 mm Ø 629 gr
Formato: Brossura
Pagine Arabe: 226






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