HydroBASINS lev08 watershed · #8080192530
Bassin · #8080192530
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
424,1km²
Upstream area
2 543,5km²
Discharge
12,49m³/s
Mean elev.
430m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #8080192250764 km²
- Bassin · #8080192330182 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith426.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 1 029 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 · #8080192530 : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 3 types (connectance 13.4%, 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°
-11,1°C
Annual rain
264mm
Moisture idx (CMI)
-0,21
Runoff
181mm/an
PET
334mm
AET
233mm
Mean slope
1,5°
Water table
69cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)