HydroBASINS lev08 watershed · #7080652360
Bassin de Arkansas River
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 : Haskell, Le Flore, Sequoyah
Sub-basin area
468,4km²
Upstream area
375 929,9km²
Discharge
1 011,94m³/s
Mean elev.
156m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sallisaw Creek739 km²
- Bassin de Arkansas River15 km²
3 dept-equivalent regions (GADM L2)
- Le FloreOklahoma · United States258.7 km²55.2% of basin
- SequoyahOklahoma · United States146.4 km²31.3% of basin
- HaskellOklahoma · United States63.2 km²13.5% of basin
1 intersecting protected areas
Reserve Program
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
512 distinct species · 5 917 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 de Arkansas River : 25 espèces reliées par 84 interactions GloBI sur 3 types (connectance 12.6%, filtre Serrano α=0.2). 12 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°
16,2°C
Annual rain
1 147mm
Moisture idx (CMI)
-0,16
Runoff
294mm/an
PET
1 367mm
AET
970mm
Mean slope
1,3°
Water table
96cm
Forest
10%
Crops
36%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)