HydroBASINS lev08 watershed · #1080084480
Bassin de Oued Boussellam
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 38 administrative regions : Ain Abessa, Ain Arnat, Ain Roua, Ain Taghrout, Ain Tesra +33
Sub-basin area
1 616,8km²
Upstream area
3 004,5km²
Discharge
7,51m³/s
Mean elev.
927m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Bousellam309 km²
- Bassin · #108008622027 km²
38 dept-equivalent regions (GADM L2)
- 187.5 km²11.6% of basin
- 173.1 km²10.7% of basin
- 124.1 km²7.7% of basin
- 109.1 km²6.7% of basin
- 86.7 km²5.4% of basin
- 85.0 km²5.3% of basin
- 75.9 km²4.7% of basin
- 75.5 km²4.7% of basin
30 moreFull L2 list
- Ain Roua68.9 km² · 4.3%
- Bougaa61.4 km² · 3.8%
- Draa-Kebila59.9 km² · 3.7%
- Beni Chebana56.1 km² · 3.5%
- Harbil55.5 km² · 3.4%
- Beni Oussine55.4 km² · 3.4%
- Bousselam52.7 km² · 3.3%
- Bir Kasdali37.4 km² · 2.3%
- Ain-Legradj36.8 km² · 2.3%
- Ain Tesra36.8 km² · 2.3%
- Beni-Ouartilane32.9 km² · 2.0%
- Mezloug30.2 km² · 1.9%
- Ras El Oued27.7 km² · 1.7%
- Beni-Mouhli20.9 km² · 1.3%
- Bouandas16.0 km² · 1.0%
- Guellal12.5 km² · 0.8%
- Tala-Ifacene12.3 km² · 0.8%
- Bouhamza7.1 km² · 0.4%
- El Ouricia6.1 km² · 0.4%
- Ksar El Abtal5.5 km² · 0.3%
- Beni Dejllil3.1 km² · 0.2%
- Ouled Si Ahmed1.7 km² · 0.1%
- Berbacha1.5 km² · 0.1%
- El Main1.0 km² · 0.1%
- Ait Naoual Mezada0.5 km² · 0.0%
- Kendira0.3 km² · 0.0%
- Amalou0.1 km² · 0.0%
- Seddouk0.0 km² · 0.0%
- Tamokra0.0 km² · 0.0%
- Feraoun0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
515 distinct species · 6 465 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Oued Boussellam : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 2 types (connectance 9.8%, 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°
13,6°C
Annual rain
553mm
Moisture idx (CMI)
-0,51
Runoff
129mm/an
PET
1 131mm
AET
469mm
Mean slope
8,0°
Water table
426cm
Forest
11%
Crops
41%
Urban
8%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)