HydroBASINS lev08 watershed · #1080084900
Bassin de Oued Sahel
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 : Ahnif, Ath Mansour Taourirt, Haraza, Ouled Sidi Brahim
Sub-basin area
114,9km²
Upstream area
115km²
Discharge
0,48m³/s
Mean elev.
715m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 51.9 km²45.2% of basin
- 28.4 km²24.7% of basin
- Ath Mansour TaourirtBouira · Algeria21.7 km²18.8% of basin
- 12.9 km²11.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
79 distinct species · 104 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 Oued Sahel : 43 espèces reliées par 59 interactions GloBI sur 5 types (connectance 5.7%, 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°
16,0°C
Annual rain
584mm
Moisture idx (CMI)
-0,51
Runoff
133mm/an
PET
1 184mm
AET
496mm
Mean slope
8,8°
Water table
503cm
Forest
13%
Crops
74%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)