HydroBASINS lev08 watershed · #7080481800
Bassin · #7080481800
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 : Lake St. Clair, Macomb, Wayne
Sub-basin area
205,2km²
Upstream area
585 954,6km²
Discharge
9 218,53m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Johnston Channel265 km²
- Bassin · #708048063090 km²
3 dept-equivalent regions (GADM L2)
- 83.0 km²40.4% of basin
- 68.7 km²33.4% of basin
- Wayne53.8 km²26.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 046 distinct species · 78 821 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 · #7080481800 : 29 espèces reliées par 71 interactions GloBI sur 4 types (connectance 9.6%, 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°
9,5°C
Annual rain
812mm
Moisture idx (CMI)
-0,13
Runoff
172mm/an
PET
937mm
AET
676mm
Mean slope
0,1°
Water table
12cm
Forest
3%
Crops
0%
Urban
62%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)