HydroBASINS lev08 watershed · #7080472020
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 5 administrative regions : Calhoun, Eaton, Ingham, Jackson, Washtenaw
Sub-basin area
2 023,6km²
Upstream area
2 023,6km²
Discharge
17,84m³/s
Mean elev.
290m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Jackson1236.1 km²61.0% of basin
- 462.8 km²22.8% of basin
- 288.5 km²14.2% of basin
- 34.4 km²1.7% of basin
- Calhoun5.0 km²0.2% of basin
30 intersecting protected areas
Waterloo
IUCN VState Wildlife Area
22.87 km² overlap
Dansville State
IUCN VGame Area
14.36 km² overlap
Sharonville State
IUCN VGame Area
7.88 km² overlap
Reserve Program
7.51 km² overlap
Phyllis Haehnle
IUCN VSanctuary
3.96 km² overlap
Reserve Program
3.61 km² overlap
Reserve Program
2.79 km² overlap
Windsor Township State
IUCN VGame Area
1.44 km² overlap
Jackson County
IUCN VIWaterfowl Production Area
1.20 km² overlap
21 more protected areassorted by overlap area
Reserve Program
1.03 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
1.03 km² overlap
Lefglen
IUCN VNature Preserve
0.79 km² overlap
Grass Lake State Game
IUCN VLake
0.53 km² overlap
Game Area
0.53 km² overlap
Lake Interstate State
IUCN VGame Area
0.50 km² overlap
Waterloo
IUCN VState Wildlife Area
0.49 km² overlap
02-38-0068
IUCN Not AssignedConservation Easement
0.34 km² overlap
06-38-0060
IUCN Not AssignedConservation Easement
0.18 km² overlap
Kate Palmer
IUCN VSanctuary
0.14 km² overlap
Conservation Easement
0.13 km² overlap
MNRTF Parcel 28
IUCN VConservation Area
0.11 km² overlap
Natural Area
0.10 km² overlap
03-38-0008
IUCN Not AssignedConservation Easement
0.04 km² overlap
03-23-0006
IUCN Not AssignedConservation Easement
0.03 km² overlap
02-38-0089
IUCN Not AssignedConservation Easement
0.02 km² overlap
01-23-0003
IUCN Not AssignedConservation Easement
0.01 km² overlap
05-38-0046
IUCN Not AssignedConservation Easement
0.01 km² overlap
02-23-0034
IUCN Not AssignedConservation Easement
0.01 km² overlap
00-00-0044
IUCN Not AssignedConservation Easement
0.00 km² overlap
01-38-0015
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 537 distinct species · 748 148 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 25 espèces reliées par 70 interactions GloBI sur 3 types (connectance 12.5%, 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°
8,4°C
Annual rain
813mm
Moisture idx (CMI)
-0,15
Runoff
271mm/an
PET
959mm
AET
686mm
Mean slope
0,9°
Water table
48cm
Forest
23%
Crops
34%
Urban
7%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)