HydroBASINS lev08 watershed · #2080640830
Bassin de Tirso
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Nuoro, Oristano
Sub-basin area
30,6km²
Upstream area
1 300,3km²
Discharge
14,74m³/s
Mean elev.
237m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riu Murtazzolu245 km²
- Bassin de Riu Sa Badde Caprara140 km²
2 dept-equivalent regions (GADM L2)
- 29.9 km²97.8% of basin
- 0.7 km²2.2% of basin
2 intersecting protected areas
Altopiano di Abbasanta
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.43 km² overlap
Media Valle del Tirso e Altopiano di Abbasanta - Rio Siddu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
89 distinct species · 142 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tirso : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 5 types (connectance 9.3%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
15,6°C
Annual rain
664mm
Moisture idx (CMI)
-0,34
Runoff
274mm/an
PET
1 012mm
AET
552mm
Mean slope
5,4°
Water table
423cm
Forest
0%
Crops
16%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)