HydroBASINS lev08 watershed · #7080486750
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 3 administrative regions : Branch, Calhoun, Hillsdale
Sub-basin area
394,4km²
Upstream area
394,4km²
Discharge
3,61m³/s
Mean elev.
333m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 329.8 km²83.5% of basin
- Calhoun45.0 km²11.4% of basin
- 20.2 km²5.1% of basin
10 intersecting protected areas
Adams Township State
IUCN VGame Area
0.73 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
0.52 km² overlap
Reserve Program
0.30 km² overlap
Reserve Program
0.21 km² overlap
Reserve Program
0.13 km² overlap
Slayton Arboretum
IUCN VArboretum
0.04 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
0.03 km² overlap
Nature Preserve
0.03 km² overlap
87-13-0411
IUCN Not AssignedConservation Easement
0.03 km² overlap
1 more protected areassorted by overlap area
01-30-0058
IUCN Not AssignedConservation Easement
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 117 distinct species · 50 971 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 de St. Joseph River : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 5 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
897mm
Moisture idx (CMI)
-0,08
Runoff
282mm/an
PET
970mm
AET
732mm
Mean slope
1,0°
Water table
66cm
Forest
10%
Crops
56%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)