HydroBASINS lev08 watershed · #7080630840
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 1 administrative regions : Mayes
Sub-basin area
120,4km²
Upstream area
29 524km²
Discharge
261,2m³/s
Mean elev.
218m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Spavinaw Creek1057 km²
- Bassin de Grand River221 km²
1 dept-equivalent regions (GADM L2)
- MayesOklahoma · United States120.4 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
381 distinct species · 1 015 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 4 types (connectance 9.9%, 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°
15,2°C
Annual rain
1 084mm
Moisture idx (CMI)
-0,15
Runoff
265mm/an
PET
1 283mm
AET
916mm
Mean slope
1,4°
Water table
148cm
Forest
38%
Crops
38%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)