HydroBASINS lev08 watershed · #8080148990
Bassin · #8080148990
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 : Fort Smith
Sub-basin area
306km²
Upstream area
2 954,4km²
Discharge
17,25m³/s
Mean elev.
223m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tilchuse River847 km²
- Bassin · #808015345080 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith308.1 km²100.0% of basin
1 intersecting protected areas
Sentinel Islands
IUCN Not ApplicableConservation zone in regional land use plan
7.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
50 distinct species · 75 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 · #8080148990 : 10 espèces reliées par 8 interactions GloBI sur 4 types (connectance 14.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
-7,4°C
Annual rain
234mm
Moisture idx (CMI)
-0,36
Runoff
199mm/an
PET
367mm
AET
217mm
Mean slope
5,0°
Water table
129cm
Forest
2%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)