HydroBASINS lev08 watershed · #1080101070
Bassin · #1080101070
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 13 administrative regions across 2 countries : Ben Guecha, Bir El Ater, Douar El Ma, Ferkane, Hassi Khalifa +8
Sub-basin area
3 610,7km²
Upstream area
3 610,7km²
Discharge
0m³/s
Mean elev.
233m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
13 dept-equivalent regions (GADM L2)
- 870.8 km²24.1% of basin
- 766.7 km²21.2% of basin
- Ben GuechaEl Oued · Algeria754.9 km²20.9% of basin
- 610.5 km²16.9% of basin
- Taleb LarbiEl Oued · Algeria332.5 km²9.2% of basin
- Douar El MaEl Oued · Algeria156.4 km²4.3% of basin
- 50.2 km²1.4% of basin
- Hassi KhalifaEl Oued · Algeria47.7 km²1.3% of basin
5 moreFull L2 list
- Nefta7.4 km² · 0.2%
- Hazoua5.7 km² · 0.2%
- Redeyef5.6 km² · 0.2%
- Oum Larais1.0 km² · 0.0%
- Trifaoui0.6 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
208 distinct species · 763 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 · #1080101070 : 34 espèces reliées par 55 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 5 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°
20,1°C
Annual rain
133mm
Moisture idx (CMI)
-0,91
Runoff
34mm/an
PET
1 523mm
AET
112mm
Mean slope
1,6°
Water table
493cm
Forest
0%
Crops
0%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)