HydroBASINS lev08 watershed · #2080047590
Bassin de Riu Mannu di Narcao
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 : Cagliari, Carbonia-Iglesias
Sub-basin area
476,2km²
Upstream area
476,2km²
Discharge
2,25m³/s
Mean elev.
273m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 412.1 km²86.5% of basin
- 64.4 km²13.5% of basin
1 intersecting protected areas
Foresta di Monte Arcosu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
97.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
751 distinct species · 1 648 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Riu Mannu di Narcao : 35 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 4 types (connectance 7.8%, filtre Serrano α=0.2). 12 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°
15,4°C
Annual rain
618mm
Moisture idx (CMI)
-0,39
Runoff
166mm/an
PET
1 019mm
AET
514mm
Mean slope
9,3°
Water table
496cm
Forest
18%
Crops
8%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)