HydroBASINS lev08 watershed · #1080109080
Bassin de Oued Tigrigra
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 3 administrative regions : El Hajeb, Ifrane, Khénifra
Sub-basin area
1 115,2km²
Upstream area
1 115,2km²
Discharge
3,93m³/s
Mean elev.
1 383m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1104.1 km²99.0% of basin
- El Hajeb10.2 km²0.9% of basin
- 0.5 km²0.0% of basin
9 intersecting protected areas
Réserve de Biosphère de la Cedraie de l'Atlas (RBCA)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1104.63 km² overlap
Parc National d'Ifrane
IUCN Not ApplicablePermanent Hunting Reserve
379.85 km² overlap
Parc National d'Ifrane
IUCN IINational Park
375.78 km² overlap
Ranch Adarouch
IUCN Not ApplicablePermanent Hunting Reserve
96.24 km² overlap
Boukhadra - Tourtite
IUCN Not ApplicablePermanent Hunting Reserve
29.02 km² overlap
Tabadoute
IUCN Not ApplicablePermanent Hunting Reserve
8.07 km² overlap
Lac Afennourir
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.81 km² overlap
Parc National de Khénifra
IUCN IINational Park
0.26 km² overlap
Plans d'eau Amghass
IUCN Not ApplicableBiological and Ecological Interest Site
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 412 distinct species · 18 837 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Tigrigra : 34 espèces reliées par 76 interactions GloBI sur 5 types (connectance 8.8%, 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°
13,2°C
Annual rain
770mm
Moisture idx (CMI)
-0,41
Runoff
108mm/an
PET
1 320mm
AET
646mm
Mean slope
6,2°
Water table
385cm
Forest
23%
Crops
75%
Urban
1%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)