HydroBASINS lev08 watershed · #1080134070
Bassin de Oued Todgha ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ واد تدغة
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 : Errachidia, Ouarzazate
Sub-basin area
993,6km²
Upstream area
993,8km²
Discharge
7,73m³/s
Mean elev.
2 042m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Ouarzazate564.8 km²56.9% of basin
- Errachidia428.0 km²43.1% of basin
4 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
992.81 km² overlap
Assoul
IUCN Not ApplicablePermanent Hunting Reserve
342.63 km² overlap
Alnif
IUCN Not ApplicablePermanent Hunting Reserve
43.11 km² overlap
Oued Todra
IUCN Not ApplicableBiological and Ecological Interest Site
10.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
513 distinct species · 11 662 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Todgha ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ واد تدغة : 19 espèces reliées par 51 interactions GloBI sur 5 types (connectance 14.5%, 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°
12,2°C
Annual rain
299mm
Moisture idx (CMI)
-0,78
Runoff
151mm/an
PET
1 401mm
AET
253mm
Mean slope
12,7°
Water table
690cm
Forest
0%
Crops
0%
Urban
3%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)