HydroBASINS lev08 watershed · #1080031790
Bassin · #1080031790
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 4 administrative regions : Bir Ali Ben Khélifa, El Ghraiba, Mahres, Skhira
Sub-basin area
342km²
Upstream area
342,1km²
Discharge
0,83m³/s
Mean elev.
26m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 217.8 km²63.7% of basin
- 104.5 km²30.6% of basin
- 4.3 km²1.2% of basin
- 0.5 km²0.2% of basin
3 intersecting protected areas
Kneiss iles
IUCN Not ReportedNature Reserve
14.80 km² overlap
Kneiss iles
IUCN Not ReportedWetland Zone of National Importance
14.80 km² overlap
Kneiss iles
IUCN Not ReportedWetland of International Importance (Ramsar Site)
14.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
60 distinct species · 139 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 · #1080031790 : 16 espèces reliées par 19 interactions GloBI sur 2 types (connectance 10.0%, filtre Serrano α=0.2). 4 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°
18,7°C
Annual rain
168mm
Moisture idx (CMI)
-0,87
Runoff
77mm/an
PET
1 256mm
AET
146mm
Mean slope
0,3°
Water table
112cm
Forest
0%
Crops
0%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)