ITG26SAR1736 - Diga Iseras

Description

La Diga Iseras è un sito artificiale composto da uno sbarramento in cemento del Rio Iseras realizzato dal Comune con fondi regionali, tra il 1990 e il 1995 per motivi irrigui e come supporto per l'antincendio. La diga si trova alle fauci del Monte Genziana, nel Comune di Talana (NU). Pur essendo artificiale, presenta un elevato valore biologico per la presenza di numerosi endemismi, alcuni dei quali rari, quali Rhamnus persicifolia, Mentha requienii o altre poco diffuse quali Myriophyllum alterniflorum. A queste si aggiunge la presenza di anfibi e rettili, quali il Discoglussus sardus e il Bufo viridis, oltre alla frequentazione da parte di numerosi mufloni, cervi e rapaci. Alle attività di ripristino ambientale, come quello finanziato della Fondazione MAVA che interessato il Rhamnus persicifolia (http://www.care-mediflora.eu/download/69), si aggiungono progetti, ancora non realizzati di valorizzazione turistico-economica dell’area (https://ricerca.gelocal.it/lanuovasardegna/archivio/lanuovasardegna/2010/08/18/SGLSN_SGL09.html) [Monitoraggio in campo: M. Fois, A. Cuena, 24.05.2018]

Wetland data

Basic information
Wetland location: Inland
Wetland type: Artificial
Wetland area: 1.8 Ha
Hydrological interaction: -  
Water salinity: Fresh (< 0.5 g/l)
Type of fresh water input: Torrent / Stream
Surface water runoff Outflow controlled by dam
Hydroperiod: Permanent
Geographic information
Region: Sardinia
Province: Nuoro
Island: Sardinia
Municipality: Talana
Longitude: 9.441016 East
Latitude: 40.057980 North
Biological significance
Biological significance: High
Ramsar wetland type
Type Coverage (%)
6 -- Water storage areas; reservoirs/barrages/dams/impoundments (generally over 8 ha) 51 - 75
N -- Seasonal/intermittent/irregular rivers/streams/creeks 5 - 25
Ts -- Seasonal/intermittent freshwater marshes/pools on inorganic soils; includes sloughs, potholes, seasonally flooded meadows, sedge marshes 26-50
W -- Shrub-dominated wetlands; shrub swamps, shrub-dominated freshwater marshes, shrub carr, alder thicket on inorganic soils 5 - 25
Protection statuses
Protection status category Protection status subcategory Area's name Code Coverage area (%) Legislation
Natural park National park Parco Nazionale del Golfo di Orosei e del Gennargentu EUAP0944 100 D.P.R. del 30 Marzo 2002
Other protected areas State Property forest Monte Genziana LA1_3 100 N.A.
Activities on wetland
Activity Intensity
140 = Grazing Medium
220 = Leisure fishing Low
852 = modifying structures of inland water courses High
Impacts
Impact Intensity
WR- = Altered flow regime Medium
Habitat types
Type Coverage (%)
3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. 26 - 50
3260 Water courses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation 5 - 25
5210 Arborescent matorral with Juniperus spp. 5 - 25
91E0 * Alluvial forests with Alnus glutinosa and Fraxinus excelsior (AlnoPadion, Alnion incanae, Salicion albae) 5 - 25
Flora
Species Presence status References
Alnus glutinosa Fois & Cuena 24.05.2018
Asphodelus ramosus Present Fois & Cuena 24.05.2018
Callitriche obtusangula Fois & Cuena 24.05.2018
Callitriche palustris Fois & Cuena 24.05.2018
Carex panormitana Present
Ceratophyllum demersum Fois & Cuena 24.05.2018
Erica arborea Fois & Cuena 24.05.2018
Erica terminalis Fois & Cuena 24.05.2018
Juncus acutiflorus Present Fois & Cuena 24.05.2018
Juniperus oxycedrus Fois & Cuena 24.05.2018
Mentha pulegium Fois & Cuena 24.05.2018
Mentha requienii requienii Fois & Cuena 24.05.2018
Pancratium illyricum Fois & Cuena 24.05.2018
Poa annua Fois & Cuena 24.05.2018
Prunus spinosa spinosa Fois & Cuena 24.05.2018
Pteridium aquilinum Fois & Cuena 24.05.2018
Ranunculus peltatus Fois & Cuena 24.05.2018
Rumex acetosella Fois & Cuena 24.05.2018
Sagina pilifera Fois & Cuena 24.05.2018
Sedum album Present Fois & Cuena 24.05.2018
Urtica atrovirens Present Fois & Cuena 24.05.2018
Fauna

Amphibians
Presence status in wetland
References
Bufo viridis Laurenti, 1768 Present
Hyla sarda De Betta 1853 Common

Fishes
Presence status in wetland
References
Salmo cettii, Rafinesque 1810 Present

Images