HydroBASINS lev08 watershed · #1080085360
Bassin de Oued Seguin
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 11 administrative regions : Ain M'Lila, Bir Chouhada, Chelghoum Laid, El Mechira, Oued Athmenia +6
Sub-basin area
663km²
Upstream area
663km²
Discharge
1,7m³/s
Mean elev.
857m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
11 dept-equivalent regions (GADM L2)
- 194.3 km²29.3% of basin
- El MechiraMila · Algeria161.7 km²24.4% of basin
- Ouled HamlaOum el Bouaghi · Algeria151.2 km²22.8% of basin
- Oued SeguenMila · Algeria73.5 km²11.1% of basin
- Souk NaamaneOum el Bouaghi · Algeria42.8 km²6.5% of basin
- Ouled KheloufMila · Algeria12.5 km²1.9% of basin
- Oued AthmeniaMila · Algeria11.1 km²1.7% of basin
- Chelghoum LaidMila · Algeria7.6 km²1.1% of basin
3 moreFull L2 list
- Ouled Rahmoune5.0 km² · 0.8%
- Bir Chouhada3.1 km² · 0.5%
- Ain M'Lila0.4 km² · 0.1%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
134 distinct species · 939 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Seguin : 23 espèces reliées par 52 interactions GloBI sur 5 types (connectance 11.2%, filtre Serrano α=0.2). 8 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°
14,1°C
Annual rain
480mm
Moisture idx (CMI)
-0,60
Runoff
80mm/an
PET
1 203mm
AET
409mm
Mean slope
3,7°
Water table
367cm
Forest
0%
Crops
41%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)