Results 151 to 160 of about 2,104 (186)
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Twenty years of numerical syntaxonomy
Plant Ecology, 1989The development of numerical syntaxonomy during its first 20 yr is reviewed. The use of methods of numerical classification and ordination is the dominating feature of the development. National and local phytosociological data banks were established, large data sets handled and many important vegetation monographs were methodically based on ...
Ladislav Mucina
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Hierarchical levels in syntaxonomy based on information functions
Plant Ecology, 1980Numerical taxonomy (formalized cluster analysis) can be defined as a set of procedures which assign objects to groups in such a way that each group reveals some distinct characteristic of the sample population (Orloci 1978). This means in the classification of vegetation that any cluster of releves or synoptic tables can be syntaxonomically meaningful ...
Enrico Feoli, Duilio Lausi
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Plant taxonomy and syntaxonomy: a comparative analysis
Plant Ecology, 1989Modern botanical idiotaxonomy and syntaxonomy have both common and differing features. The common features are a pragmatic approach and an accent on conditional units, especially the species and the association. The differing features are in the nature of organismic and the coenotic levels of life.
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Assessment of vegetation β-diversity on the basis of syntaxonomy
Russian Journal of Ecology, 2014Using the example of vegetation in four specially protected natural areas in the Southern Urals, it has been shown that its β-diversity can be estimated in two ways: from the number of syntaxa ranking from the class to the association and from the syntaxonomic spectrum, i.e., the ratio between associations of different classes.
Vasiliy Martynenko
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Numerical syntaxonomy of badland vegetation in the Apennines (Italy)
Phytocoenologia, 1987---
Ferrari C., GERDOL, Renato
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Notes on syntaxonomy of cultural forest communities
Folia Geobotanica et Phytotaxonomica, 1980It is suggested that communities of cultivated forests can be incorporated into the system of “natural” wood communities either as facies, variants or subassociations, if they differ below the association level; if they differ on the association level, a new association is suggested, with the prefix “culti-” before the planted dominant tree species ...
Emil Hadač, Jaromír Sofron
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Zur Syntaxonomie mitteleuropäischerLemnetea-Gesellschaften
Folia geobotanica & phytotaxonomica, 1978Nach Vorbemerkungen uber Umgrenzung und Probeflachenwahl bei den freischwimmenden Wasserwurzler-Gesellschaften werden die diagnostisch wichtigen Arten derLemnetea sowie Grundsatze einer objektiven Abgrenzung und Gliederung artenarmer Syntaxa behandelt.
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Influences of the individualistic concept of vegetation on syntaxonomy
Vegetatio, 1989The individualistic concept of vegetation is based on three principles: (1) vegetation continuum, (2) ecological and chorological individuality of species and (3) multidimensional variability of vegetation. All principles reflect phenomena existing in nature. The conclusions arising from these principles are these: (1) plant communities (phytocoenoses)
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Syntaxonomy of the East Asiatic Fagus) Forests
2013Table 3.1 is a synoptic table of the forests dominated by the genus Fagus in East Asia. According to Table 3.1, the phytosociological system of beech forests in East Asia was classified as in Table 3.9 and the distribution map of the classified classes, orders, alliances and associations was depicted as Fig. 2.1. In Table 3.1, 68 species categorized as
Tukasa Hukusima +9 more
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