HydroBASINS lev08 watershed · #7080626900
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 2 administrative regions : Osage, Pawnee
Sub-basin area
131,5km²
Upstream area
139 694,1km²
Discharge
198,26m³/s
Mean elev.
276m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arkansas River119 km²
- Bassin de Arkansas River38 km²
2 dept-equivalent regions (GADM L2)
- PawneeOklahoma · United States91.0 km²69.2% of basin
- OsageOklahoma · United States40.6 km²30.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
105 distinct species · 168 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 30 espèces reliées par 62 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2). 10 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°
15,1°C
Annual rain
910mm
Moisture idx (CMI)
-0,31
Runoff
184mm/an
PET
1 320mm
AET
770mm
Mean slope
1,6°
Water table
174cm
Forest
2%
Crops
22%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)