Summary
The frequencies found for 30 algal species, sampled during the period of a year in two different biotops with each 3 sample places, are given.
Scores as well as loadings of an iterated principal factor solution and of a varimax solution were calculated in order to make the distributions more surveyable
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Obvious relationships and differences between the distributions are discussed. A way of grouping them is proposed.
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A rather elaborate F.A. guided description of most of the distributions is given.
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The ecological meaning of some features brought to our attention is discussed.
Résumé
Au moyen d'une analyse de facteurs, on a essayé de distinguer les tendances fondamentales dans la repartition de 30 espèces algales.
L'analyse portait sur les résultats de comptages effectués tous les quinze fours, un an durant, et cela pour deux biotopes comprenant chacun 3 stations.
Cette analyse nous a permis de grouper les algaes et elle nous a fourni une méthode pour effectuer une description assez élaborée des distributions.
Quelques points mis en evidence par la description ont été discuté du point de vue écologique.
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Symons, F. Study of the ecological relations between 30 species of algae by means of a factor analysis. Hydrobiologia 36, 513–600 (1970). https://doi.org/10.1007/BF00039804
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DOI: https://doi.org/10.1007/BF00039804