HydroBASINS lev08 watershed · #1080093980
Bassin de وادي العونية
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 8 administrative regions across 2 countries : Beni Boussaid, Beni Snous, Bouhlou, Hammam Boughrara, Jerada +3
Sub-basin area
588,2km²
Upstream area
588,3km²
Discharge
0,5m³/s
Mean elev.
719m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- Beni BoussaidTlemcen · Algeria246.2 km²41.9% of basin
- 148.9 km²25.3% of basin
- 118.0 km²20.1% of basin
- 57.0 km²9.7% of basin
- Sidi MedjahedTlemcen · Algeria9.3 km²1.6% of basin
- Beni SnousTlemcen · Algeria8.0 km²1.4% of basin
- Hammam BoughraraTlemcen · Algeria0.7 km²0.1% of basin
- 0.0 km²0.0% of basin
4 intersecting protected areas
Touissit et Ras Asfour
IUCN Not ApplicablePermanent Hunting Reserve
43.63 km² overlap
Frontière avec l'Algerie
IUCN Not ApplicablePermanent Hunting Reserve
34.31 km² overlap
Tlemcen
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
3.14 km² overlap
Oujda - Sidi Maafa - Jbel Hamra
IUCN Not ApplicablePermanent Hunting Reserve
2.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
167 distinct species · 345 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 وادي العونية : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 5 types (connectance 9.8%, filtre Serrano α=0.2). 13 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°
15,9°C
Annual rain
389mm
Moisture idx (CMI)
-0,70
Runoff
23mm/an
PET
1 295mm
AET
332mm
Mean slope
5,9°
Water table
517cm
Forest
1%
Crops
25%
Urban
4%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)