HydroBASINS lev08 watershed · #1080172870
Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة
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 2 administrative regions : Ouarzazate, Tata
Sub-basin area
3 971,3km²
Upstream area
3 971,3km²
Discharge
5,5m³/s
Mean elev.
642m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Ouarzazate2490.7 km²62.8% of basin
- Tata1476.1 km²37.2% of basin
5 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
2734.47 km² overlap
Iriqui
IUCN Not ApplicablePermanent Hunting Reserve
2730.39 km² overlap
Oued Draa
IUCN Not ApplicablePermanent Hunting Reserve
1227.11 km² overlap
Parc National d'Iriqui
IUCN IINational Park
1197.46 km² overlap
Tamagroute
IUCN Not ApplicablePermanent Hunting Reserve
9.19 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
233 distinct species · 1 681 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة : 25 espèces reliées par 49 interactions GloBI sur 5 types (connectance 8.2%, filtre Serrano α=0.2). 10 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°
23,1°C
Annual rain
64mm
Moisture idx (CMI)
-0,97
Runoff
43mm/an
PET
1 935mm
AET
50mm
Mean slope
3,3°
Water table
506cm
Forest
0%
Crops
0%
Urban
0%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)