HydroBASINS lev08 watershed · #7080624570
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
346,4km²
Upstream area
138 670,3km²
Discharge
191,65m³/s
Mean elev.
287m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Red Rock Creek1322 km²
- Bassin de Arkansas River261 km²
2 dept-equivalent regions (GADM L2)
- OsageOklahoma · United States200.9 km²58.0% of basin
- PawneeOklahoma · United States145.6 km²42.0% of basin
1 intersecting protected areas
Reserve Program
2.67 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
240 distinct species · 662 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 : 26 espèces reliées par 106 interactions GloBI sur 4 types (connectance 13.6%, filtre Serrano α=0.2). 14 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°
15,0°C
Annual rain
896mm
Moisture idx (CMI)
-0,32
Runoff
183mm/an
PET
1 309mm
AET
759mm
Mean slope
1,5°
Water table
175cm
Forest
1%
Crops
26%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)