Donnees sur les gasteropodes dulcicoles de l'ouest de la France: Mise en evidence de cinq groupes d'especes (ACP)

Autre(s) titre(s) Data about freshwater Gastropoda from the west of France: Partition in 5 groups of species
Type Communication avec actes
Date 1991-11
Langue(s) Français
Auteur(s) Costil F
Conférence (8. Natl. Congr. of the French Malacological Society): Aspects Recents de la Biologie des Mollusques, Brest (France), 7-8 Nov 1990
Source Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1991
Keyword(s) Gastropoda, Frequency analysis, Freshwater molluscs, Fresh water, Check lists, Inventories, Mathematical models, Ponds, Abundance
Résumé en anglais 24 Species of Gastropoda, representing 3357 specimens, have been sampled in 57 varied ponds of Brittany (France). The most frequent species (at least in 10% of the samples) are considered according to their average abundance and dominance. The average specific richness of the ponds where the species have been collected is studied. In a second stage, the Gastropoda are analysed by means of a principal component analysis. The 1-2 plane correspond to 87% of the whole variance. This analysis associated with a cluster analysis led to the partition of 5 groups of species.
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Costil F (1991). Donnees sur les gasteropodes dulcicoles de l'ouest de la France: Mise en evidence de cinq groupes d'especes (ACP). Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1991. https://archimer.ifremer.fr/doc/00000/1713/