HydroBASINS lev08 watershed · #1080121910
Bassin de Oued Outerbat
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 : Errachidia
Sub-basin area
460,2km²
Upstream area
460,2km²
Discharge
1,2m³/s
Mean elev.
2 237m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- Errachidia459.9 km²100.0% of basin
5 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
452.63 km² overlap
Parc National du Haut Atlas Oriental
IUCN Not ApplicablePermanent Hunting Reserve
110.23 km² overlap
National Park
108.98 km² overlap
Réserve de Biosphère de la Cedraie de l'Atlas (RBCA)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
7.24 km² overlap
Assoul
IUCN Not ApplicablePermanent Hunting Reserve
2.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
23 distinct species · 25 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 Outerbat : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 50.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,8°C
Annual rain
420mm
Moisture idx (CMI)
-0,67
Runoff
88mm/an
PET
1 301mm
AET
358mm
Mean slope
14,2°
Water table
736cm
Forest
0%
Crops
0%
Urban
0%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)