HydroBASINS lev08 watershed · #7080492280
Bassin de St. Joseph 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 6 administrative regions : Branch, Calhoun, Hillsdale, Kalamazoo, Saint Joseph +1
Sub-basin area
2 150,4km²
Upstream area
2 150,6km²
Discharge
18,18m³/s
Mean elev.
291m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 1070.5 km²49.7% of basin
- Calhoun539.8 km²25.1% of basin
- Saint Joseph288.6 km²13.4% of basin
- 129.0 km²6.0% of basin
- 125.2 km²5.8% of basin
- 0.7 km²0.0% of basin
12 intersecting protected areas
Fulton State
IUCN VGame Area
2.75 km² overlap
Reserve Program
0.96 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
0.75 km² overlap
Reserve Program
0.67 km² overlap
Leidy Lake State Game
IUCN VLake
0.44 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Calhoun, MI
IUCN Not AssignedConservation Easement
0.15 km² overlap
Conservation Easement
0.15 km² overlap
Conservation Easement
0.11 km² overlap
Coldwater Fen
IUCN VNature Preserve
0.06 km² overlap
3 more protected areassorted by overlap area
03-39-0039
IUCN Not AssignedConservation Easement
0.04 km² overlap
Flowering Dogwood
IUCN VNature Sanctuary
0.04 km² overlap
97-13-0120
IUCN Not AssignedConservation Easement
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 076 distinct species · 142 618 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 St. Joseph River : 28 espèces reliées par 64 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 6 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°
8,7°C
Annual rain
899mm
Moisture idx (CMI)
-0,08
Runoff
264mm/an
PET
976mm
AET
738mm
Mean slope
0,8°
Water table
38cm
Forest
14%
Crops
57%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)