HydroBASINS lev08 watershed · #7080590340
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 5 administrative regions : Finney, Grant, Greeley, Hamilton, Kearny
Sub-basin area
1 941,6km²
Upstream area
71 786,5km²
Discharge
19,25m³/s
Mean elev.
985m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arkansas River2554 km²
- Bassin de Bear Creek572 km²
5 dept-equivalent regions (GADM L2)
- 1059.9 km²54.6% of basin
- Hamilton404.7 km²20.8% of basin
- 384.5 km²19.8% of basin
- 92.6 km²4.8% of basin
- Grant1.1 km²0.1% of basin
1 intersecting protected areas
Finney
IUCN VGame Refuge
14.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 100 distinct species · 49 521 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 24 espèces reliées par 81 interactions GloBI sur 3 types (connectance 16.3%, filtre Serrano α=0.2). 8 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°
11,7°C
Annual rain
436mm
Moisture idx (CMI)
-0,67
Runoff
6mm/an
PET
1 305mm
AET
372mm
Mean slope
0,3°
Water table
237cm
Forest
2%
Crops
85%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)