HydroBASINS lev08 watershed · #7080642090
Bassin de Grand 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 4 administrative regions : Cherokee, Mayes, Muskogee, Wagoner
Sub-basin area
970,2km²
Upstream area
32 422,8km²
Discharge
284,64m³/s
Mean elev.
229m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Spring Creek465 km²
- Bassin de Chouteau Creek304 km²
4 dept-equivalent regions (GADM L2)
- CherokeeOklahoma · United States595.7 km²61.4% of basin
- WagonerOklahoma · United States273.7 km²28.2% of basin
- MayesOklahoma · United States87.9 km²9.1% of basin
- MuskogeeOklahoma · United States13.1 km²1.3% of basin
2 intersecting protected areas
Refuge
82.98 km² overlap
Reserve Program
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 567 distinct species · 59 507 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Grand River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 9 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°
15,4°C
Annual rain
1 106mm
Moisture idx (CMI)
-0,14
Runoff
266mm/an
PET
1 293mm
AET
935mm
Mean slope
2,2°
Water table
178cm
Forest
56%
Crops
26%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)