Proceedings of the Second Mediterranean Symposium on Marine
Proceedings of the Second Mediterranean Symposium on Marine
Proceedings of the Second Mediterranean Symposium on Marine
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Fig. 9. Hystogram showing <str<strong>on</strong>g>the</str<strong>on</strong>g> percentages <str<strong>on</strong>g>of</str<strong>on</strong>g> Fucophyceae <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> six floras investigated bel<strong>on</strong>ging to each<br />
distributi<strong>on</strong> group.<br />
Chlorophyceae (Table 7 and Fig. 10) <str<strong>on</strong>g>of</str<strong>on</strong>g> each area was calculated. On this basis, <str<strong>on</strong>g>the</str<strong>on</strong>g><br />
phytogeographic similarity am<strong>on</strong>g different areas has been established and a<br />
hierarchical clustering has been carried out using <str<strong>on</strong>g>the</str<strong>on</strong>g> same methodology as for<br />
phytogeographic comparis<strong>on</strong>s within <str<strong>on</strong>g>the</str<strong>on</strong>g> Italian flora. In <str<strong>on</strong>g>the</str<strong>on</strong>g> dendrogram <str<strong>on</strong>g>of</str<strong>on</strong>g><br />
Ceramiales (Fig. 11), <str<strong>on</strong>g>the</str<strong>on</strong>g> following groups can be identified: SPA-MAT and ITA-FRA<br />
linked at a level higher than 90% and GTR-LEL linked to <str<strong>on</strong>g>the</str<strong>on</strong>g> first two groups at a<br />
value higher than 80%. Such a dendrogram is very similar to that <str<strong>on</strong>g>of</str<strong>on</strong>g> Fucophyceae<br />
(Fig. 12) in which <str<strong>on</strong>g>the</str<strong>on</strong>g> following groups can be detected: SPA-MAT at a level <str<strong>on</strong>g>of</str<strong>on</strong>g><br />
importance <str<strong>on</strong>g>of</str<strong>on</strong>g> about 95% to which GTR is linked at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> about 93% and ITA-<br />
FRA at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> about 93% linked to <str<strong>on</strong>g>the</str<strong>on</strong>g> previous group at about 90%. The LEL<br />
area is linked to both <str<strong>on</strong>g>the</str<strong>on</strong>g> previous groups at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> about 75%. In <str<strong>on</strong>g>the</str<strong>on</strong>g><br />
dendrogram <str<strong>on</strong>g>of</str<strong>on</strong>g> Chlorophyceae (Fig. 13) areas are always linked at high level <str<strong>on</strong>g>of</str<strong>on</strong>g><br />
importance (<str<strong>on</strong>g>the</str<strong>on</strong>g> lowest value is higher than 80%), but <str<strong>on</strong>g>the</str<strong>on</strong>g> resulting groups (ITA<br />
and SPA with FRA linked at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> importance higher than 95%; GTR and MAT<br />
linked to <str<strong>on</strong>g>the</str<strong>on</strong>g> previous group at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> about 90% and LEL linked to <str<strong>on</strong>g>the</str<strong>on</strong>g> previous<br />
groups at a level <str<strong>on</strong>g>of</str<strong>on</strong>g> about 85%) are different from those identifiable in <str<strong>on</strong>g>the</str<strong>on</strong>g> previous<br />
dendrogram.<br />
ACTES DU DEUXIEME SYMPOSIUM MEDITERRANEEN SUR LA VEGETATION MARINE (ATHENES, 12-13 DECEMBRE 2003)<br />
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