HydroBASINS lev08 watershed · #1080133240
Bassin de Oued Toudra ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ وادي 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
1 070,2km²
Upstream area
1 070,2km²
Discharge
2,48m³/s
Mean elev.
1 475m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Errachidia986.2 km²92.2% of basin
- Ouarzazate83.1 km²7.8% of basin
3 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1069.34 km² overlap
Assoul
IUCN Not ApplicablePermanent Hunting Reserve
121.25 km² overlap
Alnif
IUCN Not ApplicablePermanent Hunting Reserve
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
126 distinct species · 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Toudra ⴰⵙⵉⴼ ⵏ ⵜⵓⴷⵖⴰ وادي تدغة : 28 espèces reliées par 42 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 3 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°
15,7°C
Annual rain
201mm
Moisture idx (CMI)
-0,87
Runoff
76mm/an
PET
1 538mm
AET
169mm
Mean slope
8,1°
Water table
608cm
Forest
0%
Crops
0%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)