Association of two complementary mathematical methods: correspondence analysis and rank-frequency diagrams in the study of the organization and structure of benthic Mediterranean populations
Diaz-Castaneda, V.; Safran, P.; Bellan, G.; Leprêtre, A. (1991). Association of two complementary mathematical methods: correspondence analysis and rank-frequency diagrams in the study of the organization and structure of benthic Mediterranean populations. Cah. Biol. Mar. 32(1): 23-43
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
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| Authors | | Top |
- Diaz-Castaneda, V.
- Safran, P.
- Bellan, G., more
- Leprêtre, A.
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| Abstract |
This study showed the process of recolonization of a defaunated substrate by a "muddy sands in sheltered area" (SVMC) population. Twenty four experimental boxes were placed at 5 m depth, in Lazaret Bay, Toulon, France, during an annual cycle. To compare natural and experimental condition, a few meters apart from the experimental site, autochtonous sediments were also monthly sampled. The structure and degree of organization of populations were followed by means of Correspondence Analysis, a multivariate method of ordination in reduced space, and Rank-Frequency Diagrams. Correspondence Analysis was applied to 140 taxa of benthic organisms. Both technics were complementary, showing the evolution of the experimental populations towards a state resembling the natural surrounding population. After one year, almost the same diversity and lists of species were found, nevertheless the organization (i.e. relative proportions of species) appeared to be different. |
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