HydroBASINS lev08 watershed · #8080280740
Bassin · #8080280740
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
591,5km²
Upstream area
2 827,3km²
Discharge
7,81m³/s
Mean elev.
552m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #80802830301316 km²
- Bassin · #8080283120920 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith594.8 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
49 distinct species · 140 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 · #8080280740 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 2 types (connectance 11.6%, 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°
-3,8°C
Annual rain
398mm
Moisture idx (CMI)
-0,31
Runoff
99mm/an
PET
578mm
AET
346mm
Mean slope
2,1°
Water table
12cm
Forest
68%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)