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HABITAT

1210 – Annual vegetation of drift lines

Habitat code: 1210
Name: Annual vegetation of drift lines
Brief description: Defined by the presence of a species-poor, open-structure community comprising ephemeral annual plants typical of drift lines on beaches, where winter storms deposit a great amount of organic debris.
Characteristics of Typical species:

Indicator species of drift line habitat on Tavolara are Cakile maritima, Salsola kali, and Polygonum maritimum. They define an annual halonitrophilous community tied to the availability of organic substrates on beaches, particularly Posidonia oceanica debris deposited by waves.


Cakile maritima Scop. subsp. maritima

Salsola kali L. with deposits of Posidonia oceanica (L.) Delile

Polygonum maritimum L.

Threats: The quantity, nature, and permanence of organic substrates, together with sand quality and the degree of dune disturbance, are the main ecological factors affecting this, habitat, which is negatively impacted by beach cleaning and the presence of tourists.

Factsheet by Stefania Pisanu and Rossella Filigheddu UNISS


Main references: Farris E., Pisanu S., Secchi Z., Bagella S., Urbani M., Filigheddu R., 2007. Gli habitat terrestri costieri e litorali della Sardegna settentrionale: verifica della loro attribuzione sintassonomica ai sensi della Direttiva 43/92/CEE “Habitat”. Fitosociologia, 44(1): 165-180. Farris E., Pisanu S., Ceccherelli G., Filigheddu R., 2013. Human trampling effects on Mediterranean coastal dune plants. Plant Biosystems, 147(4): 1043–1051. Filigheddu R., Farris E., Pisanu S., Navone A., 2011. Analisi geobotaniche nell’Area Marina Protetta di Tavolara-Punta Coda Cavallo (Sardegna NE) a support della gestione della biodiversità. XIX Convegno del Gruppo per l’Ecologia di Base G. Gadio “Il ruolo delle aree protette per la tutela della biodiversità”. 21-23 maggio 2010, Olbia (O-T). Studi Trentini di Scienze Naturali 89: 133-136.