HydroBASINS lev08 watershed · #1080143230
Bassin de Oued Dades
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 1 administrative regions : Ouarzazate
Sub-basin area
525,9km²
Upstream area
7 054,9km²
Discharge
46,07m³/s
Mean elev.
1 296m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Dades1957 km²
- Bassin de Oued El Hajaj967 km²
1 dept-equivalent regions (GADM L2)
- Ouarzazate525.4 km²100.0% of basin
4 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
525.39 km² overlap
Mansour Eddahbi
IUCN Not ApplicablePermanent Hunting Reserve
109.61 km² overlap
Barrage Al Mansour Ad-Dahbi
IUCN Not ApplicableBiological and Ecological Interest Site
12.02 km² overlap
Ighernan
IUCN Not ApplicablePermanent Hunting Reserve
8.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
336 distinct species · 9 340 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Dades : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 2 types (connectance 13.0%, filtre Serrano α=0.2). 4 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°
17,5°C
Annual rain
209mm
Moisture idx (CMI)
-0,87
Runoff
98mm/an
PET
1 672mm
AET
175mm
Mean slope
2,5°
Water table
460cm
Forest
0%
Crops
2%
Urban
0%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)