HydroBASINS lev08 watershed · #7080471180
Bassin de Middle Branch Black 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 4 administrative regions : Allegan, Lake Michigan, Van Buren
Sub-basin area
1 940,4km²
Upstream area
1 940,4km²
Discharge
13,8m³/s
Mean elev.
189m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Lake Michigan1082.2 km²55.7% of basin
- Van Buren419.1 km²21.6% of basin
- 413.4 km²21.3% of basin
- Lake Michigan28.9 km²1.5% of basin
30 intersecting protected areas
Marine Protected Area
170.57 km² overlap
Allegan State
IUCN VGame Area
46.65 km² overlap
Lake
2.22 km² overlap
Wau-Ke-Na
IUCN VNature Preserve
0.97 km² overlap
Conservation Easement
0.59 km² overlap
Eastman Creek
IUCN VNature Preserve
0.56 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not AssignedConservation Easement
0.54 km² overlap
Black River
IUCN VNature Preserve
0.49 km² overlap
Reserve Program
0.48 km² overlap
21 more protected areassorted by overlap area
Fuller Woods State
IUCN VGame Area
0.34 km² overlap
Game Area
0.32 km² overlap
Jeptha Lake Fen
IUCN VLake
0.14 km² overlap
07-80-0032-v
IUCN Not AssignedConservation Easement
0.13 km² overlap
Hultmark
IUCN VNature Preserve
0.12 km² overlap
Wintergreen Woods
IUCN VNature Preserve
0.12 km² overlap
07-80-0039
IUCN Not AssignedConservation Easement
0.09 km² overlap
Swan Creek
IUCN VPreserve
0.08 km² overlap
Natural Area Little Tom
IUCN VLake
0.07 km² overlap
Conservation Easement
0.07 km² overlap
Winterberry Woods
IUCN VNature Preserve
0.06 km² overlap
89-12-0107
IUCN Not AssignedConservation Easement
0.04 km² overlap
10-80-0005-v
IUCN Not AssignedConservation Easement
0.03 km² overlap
10-80-0052
IUCN Not AssignedConservation Easement
0.02 km² overlap
07-80-0026
IUCN Not AssignedConservation Easement
0.02 km² overlap
08-80-0011
IUCN Not AssignedConservation Easement
0.02 km² overlap
03-80-0014
IUCN Not AssignedConservation Easement
0.01 km² overlap
08-80-0057
IUCN Not AssignedConservation Easement
0.01 km² overlap
08-80-0003
IUCN Not AssignedConservation Easement
0.01 km² overlap
11-80-0042
IUCN Not AssignedConservation Easement
0.01 km² overlap
96-12-0520
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 652 distinct species · 174 262 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Middle Branch Black River : 23 espèces reliées par 69 interactions GloBI sur 3 types (connectance 12.3%, filtre Serrano α=0.2). 11 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°
9,0°C
Annual rain
908mm
Moisture idx (CMI)
0,01
Runoff
262mm/an
PET
899mm
AET
703mm
Mean slope
0,4°
Water table
21cm
Forest
27%
Crops
26%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)