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Phytosociological analysis in Sardinian mediterranean temporary wet habitats

Bagella, Simonetta and Caria, Maria Carmela and Filigheddu, Rossella Speranza and Farris, Emmanuele (2009) Phytosociological analysis in Sardinian mediterranean temporary wet habitats. Fitosociologia, Vol. 46 (1), p. 11-26. ISSN 1125-9078. Article.

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Abstract

The aims of this research were to contribute to the knowledge of the Mediterranean temporary wet habitats vegetation and to investigate the spatial distribution and the temporal successions of plant communities under different hydrological regimes in North Western Sardinia. The vegetation was sampled in temporary wet habitats located in large depressions (temporary ponds), in small depressions in patchwork with the vegetation dominated by Myrtus communis (waterlogged soils) and in rocky outcrops (rock pools). Three belts were recognized in temporary ponds: a central belt, an intermediate belt, and an outer belt. Overall 11 associations and subassociations were identified, within 4 syntaxonomic classes: Potametea, Isoeto-Nanojuncetea, Isoeto-Littorelletea and Phragmito-Magnocaricetea. Four new associations have been described: Isoeto tigulianae-Callitrichetum brutiae, Romuleo requienii-Isoetetum histricis, Apio crassipedis-Elatinetum macropodae, and Lythro hyssopifoliae-Crassuletum vaillantii. Moreover, within the Preslion cervinae alliance of the Isoeto-Nanojuncetea class, a new Tyrrhenian suballiance Apienion crassipedis, has been established, for which the typical association is the Apio crassipedis-Isoetetum tigulianae Biondi & Bagella 2005 corr. hoc loco. Aquatic vegetation was found in the central and intermediate belt of the temporary ponds and within the rock pools. Late winter–spring amphibious communities were present in almost all temporary wet habitats. Summer plant communities were found exclusively in the central belt of temporary ponds.

Item Type:Article
ID Code:3416
Status:Published
Refereed:Yes
Uncontrolled Keywords:Apienion crassipedis, biogeography, hydrological regimes, Isoeto-Nanojuncetea, rock pools, temporary ponds, waterlogged soils
Subjects:Area 05 - Scienze biologiche > BIO/03 Botanica ambientale e applicata
Area 05 - Scienze biologiche > BIO/02 Botanica sistematica
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze botaniche, ecologiche e geologiche
Publisher:Società italiana di fitosociologia
ISSN:1125-9078
Publisher Policy:Depositato per gentile concessione della Società italiana di scienza della vegetazione
Deposited On:15 Jan 2010 16:41

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