HydroBASINS lev08 watershed · #8080271000
Bassin · #8080271000
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
1 100,3km²
Upstream area
893 106,8km²
Discharge
4 178,31m³/s
Mean elev.
154m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 1 basins
- Bassin · #80804386001150 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith1106.7 km²100.0% of basin
1 intersecting protected areas
Whooping Crane Summer Range
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.76 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
51 distinct species · 60 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 · #8080271000 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 3 types (connectance 8.2%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-4,0°C
Annual rain
313mm
Moisture idx (CMI)
-0,36
Runoff
40mm/an
PET
491mm
AET
277mm
Mean slope
0,1°
Water table
1cm
Forest
5%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)