HydroBASINS lev08 watershed · #7080395550
Bassin de Willow Creek
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 : Delta, Lake Michigan
Sub-basin area
152,8km²
Upstream area
4 084,2km²
Discharge
42,9m³/s
Mean elev.
184m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rapid River1515 km²
- Bassin de Escanaba River687 km²
2 dept-equivalent regions (GADM L2)
- Lake Michigan83.1 km²54.3% of basin
- 70.1 km²45.7% of basin
12 intersecting protected areas
Portage Marsh
IUCN VState Wildlife Management Area
0.73 km² overlap
08-21-0002
IUCN Not AssignedConservation Easement
0.46 km² overlap
Portage Mars
IUCN VWildlife Habitat Management Area
0.32 km² overlap
State Forest
0.29 km² overlap
06-21-0002
IUCN Not AssignedConservation Easement
0.05 km² overlap
05-21-0047
IUCN Not AssignedConservation Easement
0.03 km² overlap
14-21-0027
IUCN Not AssignedConservation Easement
0.02 km² overlap
01-21-0003
IUCN Not AssignedConservation Easement
0.01 km² overlap
01-21-0018
IUCN Not AssignedConservation Easement
0.01 km² overlap
3 more protected areassorted by overlap area
Township
IUCN VNatural Area
0.01 km² overlap
05-21-0046
IUCN Not AssignedConservation Easement
0.00 km² overlap
02-21-0043
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
865 distinct species · 51 416 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Willow Creek : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 4 types (connectance 13.3%, 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°
5,6°C
Annual rain
751mm
Moisture idx (CMI)
-0,02
Runoff
215mm/an
PET
764mm
AET
605mm
Mean slope
0,2°
Water table
18cm
Forest
25%
Crops
21%
Urban
8%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)