HydroBASINS lev08 watershed · #1080142990
Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيز
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 across 2 countries : Erg Ferradj, Errachidia
Sub-basin area
128km²
Upstream area
11 549,1km²
Discharge
15,98m³/s
Mean elev.
729m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #10801420901445 km²
- Bassin de Oued Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيز547 km²
2 dept-equivalent regions (GADM L2)
- Errachidia127.8 km²100.0% of basin
- 0.0 km²0.0% of basin
2 intersecting protected areas
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
127.77 km² overlap
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
127.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
119 distinct species · 331 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Ziz ⴰⵙⵉⴼ ⵏ ⵣⵉⵣ وادي زيز : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 5 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°
21,6°C
Annual rain
58mm
Moisture idx (CMI)
-0,97
Runoff
28mm/an
PET
1 756mm
AET
46mm
Mean slope
1,1°
Water table
263cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)