HydroBASINS lev08 watershed · #1080030860
Bassin de Oued Djemaâ
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 12 administrative regions : Ait Naoual Mezada, Ait-Smail, Ait-Tizi, Amizour, Aokas +7
Sub-basin area
247,3km²
Upstream area
247,3km²
Discharge
1,8m³/s
Mean elev.
661m
Administrative coverage
12 dept-equivalent regions (GADM L2)
- 65.9 km²26.6% of basin
- 42.6 km²17.2% of basin
- 35.0 km²14.1% of basin
- 33.8 km²13.7% of basin
- 25.3 km²10.2% of basin
- 17.3 km²7.0% of basin
- 13.1 km²5.3% of basin
- 9.5 km²3.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 113 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Djemaâ : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 6.6%, 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°
14,8°C
Annual rain
812mm
Moisture idx (CMI)
-0,24
Runoff
217mm/an
PET
1 065mm
AET
631mm
Mean slope
20,4°
Water table
774cm
Forest
99%
Crops
2%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)