HydroBASINS lev08 watershed · #7080394180
Bassin de South Fork 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 2 administrative regions : Harding, Perkins
Sub-basin area
667,3km²
Upstream area
2 607,9km²
Discharge
5,34m³/s
Mean elev.
859m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bull Creek463 km²
- Bassin · #708039474011 km²
2 dept-equivalent regions (GADM L2)
- Harding510.7 km²76.3% of basin
- Perkins158.2 km²23.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
239 distinct species · 783 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 South Fork Grand River : 23 espèces reliées par 133 interactions GloBI sur 4 types (connectance 17.1%, filtre Serrano α=0.2). 17 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°
6,4°C
Annual rain
407mm
Moisture idx (CMI)
-0,60
Runoff
71mm/an
PET
1 017mm
AET
353mm
Mean slope
2,6°
Water table
392cm
Forest
0%
Crops
16%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)