HydroBASINS lev08 watershed · #7080551480
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 3 administrative regions : Carroll, Chariton, Livingston
Sub-basin area
93,3km²
Upstream area
18 032,8km²
Discharge
134,12m³/s
Mean elev.
219m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Medicine Creek1884 km²
- Bassin de Locust Creek1728 km²
3 dept-equivalent regions (GADM L2)
- Livingston45.4 km²48.6% of basin
- 27.3 km²29.2% of basin
- Carroll20.7 km²22.2% of basin
10 intersecting protected areas
Reserve Program
6.42 km² overlap
Fountain Grove
IUCN VConservation Area
1.02 km² overlap
Reserve Program
0.44 km² overlap
Reserve Program
0.31 km² overlap
Reserve Program
0.13 km² overlap
Watershed Protection
0.11 km² overlap
National Wildlife Refuge
0.06 km² overlap
Watershed Protection
0.02 km² overlap
Sumner
IUCN VAccess
0.01 km² overlap
1 more protected areassorted by overlap area
Swan Lake
IUCN IVNational Wildlife Refuge
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
195 distinct species · 1 185 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 Grand River : 26 espèces reliées par 133 interactions GloBI sur 4 types (connectance 16.2%, filtre Serrano α=0.2). 15 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°
11,8°C
Annual rain
965mm
Moisture idx (CMI)
-0,14
Runoff
233mm/an
PET
1 127mm
AET
816mm
Mean slope
1,0°
Water table
62cm
Forest
21%
Crops
62%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)