HydroBASINS lev08 watershed · #1080149070
Bassin · #1080149070
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
1 678,3km²
Upstream area
1 678,3km²
Discharge
1,33m³/s
Mean elev.
748m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Errachidia1401.3 km²83.6% of basin
- Ouarzazate275.3 km²16.4% of basin
4 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1676.61 km² overlap
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
926.78 km² overlap
Tamagroute
IUCN Not ApplicablePermanent Hunting Reserve
485.02 km² overlap
Alnif
IUCN Not ApplicablePermanent Hunting Reserve
229.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
73 distinct species · 116 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 · #1080149070 : 24 espèces reliées par 24 interactions GloBI sur 5 types (connectance 8.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
22,2°C
Annual rain
50mm
Moisture idx (CMI)
-0,97
Runoff
32mm/an
PET
1 860mm
AET
40mm
Mean slope
2,0°
Water table
463cm
Forest
0%
Crops
0%
Urban
0%
Protected
72%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)