HydroBASINS lev08 watershed · #1080136700
Bassin de Oued Nfiss ⴰⵙⵉⴼ ⵏⴼⵉⵙ وادي نفيس
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 : Al Haouz
Sub-basin area
643,2km²
Upstream area
1 412,9km²
Discharge
2,13m³/s
Mean elev.
1 658m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Nfiss551 km²
- Bassin de Oued Nfiss219 km²
1 dept-equivalent regions (GADM L2)
- 642.6 km²100.0% of basin
3 intersecting protected areas
Toubkal - Ouirgane
IUCN Not ApplicablePermanent Hunting Reserve
383.82 km² overlap
Parc National de Toubkal
IUCN IINational Park
56.15 km² overlap
Réserve de Biosphère de l'Arganeraie (RBA)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
32.53 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
643 distinct species · 4 741 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Nfiss ⴰⵙⵉⴼ ⵏⴼⵉⵙ وادي نفيس : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 5 types (connectance 9.2%, filtre Serrano α=0.2). 9 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°
12,5°C
Annual rain
527mm
Moisture idx (CMI)
-0,60
Runoff
48mm/an
PET
1 341mm
AET
445mm
Mean slope
19,4°
Water table
823cm
Forest
16%
Crops
27%
Urban
1%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)