HydroBASINS lev08 watershed · #7080466620
Bassin de Thornapple 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 : Allegan, Barry, Eaton, Ionia, Kent
Sub-basin area
2 142,8km²
Upstream area
2 142,8km²
Discharge
19,99m³/s
Mean elev.
264m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 1017.0 km²47.4% of basin
- 608.9 km²28.4% of basin
- Kent292.9 km²13.6% of basin
- 219.6 km²10.2% of basin
- 7.9 km²0.4% of basin
30 intersecting protected areas
Barry State
IUCN VGame Area
56.13 km² overlap
Middleville State
IUCN VGame Area
17.91 km² overlap
Reserve Program
4.02 km² overlap
Pierce Cedar Creek Institute
IUCN Not AssignedConservation Easement
2.24 km² overlap
Reserve Program
1.14 km² overlap
Tamarack Lake State Game
IUCN VLake
0.97 km² overlap
Heath Rd
IUCN VNature Preserve
0.65 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
0.56 km² overlap
Otis
IUCN VSanctuary
0.51 km² overlap
21 more protected areassorted by overlap area
Dolan
IUCN VNature Sanctuary
0.50 km² overlap
Ronald Warner
IUCN VNature Sanctuary
0.40 km² overlap
97-09-0688
IUCN Not AssignedConservation Easement
0.33 km² overlap
Thornapple
IUCN VLake
0.32 km² overlap
Barry County
IUCN Not AssignedWaterfowl Production Area
0.31 km² overlap
Nature
IUCN VPreserve
0.31 km² overlap
Conservation Easement
0.29 km² overlap
Hidden
IUCN VPond
0.28 km² overlap
Fair
IUCN VLake
0.27 km² overlap
Conservation Easement
0.27 km² overlap
Carter Lake
IUCN VPreserve
0.25 km² overlap
Reserve Program
0.19 km² overlap
Ada Park and Arboretum
IUCN VArboretum
0.16 km² overlap
03-41-0141
IUCN Not AssignedConservation Easement
0.13 km² overlap
Natural Area
0.11 km² overlap
Conservation Easement
0.11 km² overlap
00-00-0018
IUCN Not AssignedConservation Easement
0.10 km² overlap
Gertrude McPharlin Bauer
IUCN VNature Sanctuary
0.08 km² overlap
02-41-0154
IUCN Not AssignedConservation Easement
0.05 km² overlap
02-41-0151
IUCN Not AssignedConservation Easement
0.05 km² overlap
05-41-0047
IUCN Not AssignedConservation Easement
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 362 distinct species · 730 141 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Thornapple River : 29 espèces reliées par 65 interactions GloBI sur 4 types (connectance 9.8%, filtre Serrano α=0.2). 8 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
874mm
Moisture idx (CMI)
-0,10
Runoff
292mm/an
PET
973mm
AET
715mm
Mean slope
1,2°
Water table
81cm
Forest
17%
Crops
46%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)