HydroBASINS lev08 watershed · #1080566500
Bassin · #1080566500
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 : Keur-Macène, Méderdra, Rosso
Sub-basin area
1 385,3km²
Upstream area
8 751,5km²
Discharge
12,09m³/s
Mean elev.
19m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080568190933 km²
- Bassin · #1080567970882 km²
3 dept-equivalent regions (GADM L2)
- 600.3 km²43.5% of basin
- 599.9 km²43.5% of basin
- 180.5 km²13.1% of basin
1 intersecting protected areas
Reserve de Chat TBoul
IUCN IIWetland of International Importance (Ramsar Site)
4.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
243 distinct species · 1 033 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 · #1080566500 : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 2 types (connectance 6.9%, filtre Serrano α=0.2). 4 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°
26,7°C
Annual rain
173mm
Moisture idx (CMI)
-0,91
Runoff
3mm/an
PET
1 957mm
AET
143mm
Mean slope
0,5°
Water table
137cm
Forest
0%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)