HydroBASINS lev08 watershed · #7080414840
Bassin de South Branch Devils 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 : Alcona, Alpena, Lake Hurron
Sub-basin area
347,1km²
Upstream area
347,1km²
Discharge
1,93m³/s
Mean elev.
196m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 214.7 km²61.7% of basin
- 117.1 km²33.7% of basin
- 16.1 km²4.6% of basin
13 intersecting protected areas
Marine Protected Area
119.92 km² overlap
Marine Protected Area
114.23 km² overlap
State Forest
54.28 km² overlap
State Wildlife Management Area
3.69 km² overlap
Squaw Bay Fee
IUCN VPrivate Conservation Land
1.24 km² overlap
MNRTF Parcel 57
IUCN VConservation Area
0.19 km² overlap
MNRTF Parcel
IUCN VConservation Area
0.16 km² overlap
09-04-0011
IUCN Not AssignedConservation Easement
0.09 km² overlap
Tiffany
IUCN Not AssignedEasement
0.04 km² overlap
4 more protected areassorted by overlap area
07-04-0023
IUCN Not AssignedConservation Easement
0.02 km² overlap
Michigan Islands
IUCN IVNational Wildlife Refuge
0.02 km² overlap
Marine Protected Area
0.02 km² overlap
National Wildlife Refuge
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
906 distinct species · 15 955 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 South Branch Devils River : 23 espèces reliées par 83 interactions GloBI sur 4 types (connectance 13.9%, filtre Serrano α=0.2). 12 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°
6,3°C
Annual rain
726mm
Moisture idx (CMI)
-0,13
Runoff
176mm/an
PET
833mm
AET
610mm
Mean slope
0,6°
Water table
62cm
Forest
41%
Crops
9%
Urban
2%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)