HydroBASINS lev08 watershed · #7080410270

Bassin de Lower South Branch Thunder Bay 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 : Alcona, Alpena, Montmorency, Oscoda

38% lakePfafstetter: 72570404

Sub-basin area

1 157,2km²

Upstream area

1 157,3km²

Discharge

6,48m³/s

Mean elev.

255m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Thunder Bay River264 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

Alcona
Michigan · United States
698.1 km²
60.2% of basin
Alpena
Michigan · United States
450.8 km²
38.9% of basin
Oscoda
Michigan · United States
10.7 km²
0.9% of basin
Montmorency
Michigan · United States
0.2 km²
0.0% of basin

16 intersecting protected areas

Atlanta State Forest Area
IUCN V
State Forest
45.11 km² overlap
Hubbard Lake State Game
IUCN V
Lake
1.86 km² overlap
Elser
IUCN Not Assigned
Easement
0.97 km² overlap
Farm Service Agency Interest Of Mi
IUCN Not Assigned
Conservation Easement
0.41 km² overlap
Begick
IUCN Not Assigned
Easement
0.36 km² overlap
MNRTF Parcel 57
IUCN V
Conservation Area
0.19 km² overlap
Gaylord State Forest Area
IUCN V
State Forest
0.18 km² overlap
Wetlands Reserve Program (WRP), Alpena, MI
IUCN V
Reserve Program
0.09 km² overlap
Werth
IUCN Not Assigned
Easement
0.08 km² overlap

7 more protected areassorted by overlap area

MNRTF Parcel 13
IUCN V
Conservation Area
0.08 km² overlap
02-04-0001
IUCN Not Assigned
Conservation Easement
0.07 km² overlap
03-01-0003
IUCN Not Assigned
Conservation Easement
0.03 km² overlap
Colby
IUCN V
Nature Sanctuary
0.03 km² overlap
Farm Service Agency Interest Of Mi
IUCN V
Conservation Easement
0.02 km² overlap
07-01-0027
IUCN Not Assigned
Conservation Easement
0.00 km² overlap
86-05-0428
IUCN Not Assigned
Conservation Easement
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

949 distinct species · 22 040 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 39 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Lower South Branch Thunder Bay River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.104

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,1°C

Annual rain

730mm

Moisture idx (CMI)

-0,16

Runoff

177mm/an

PET

869mm

AET

615mm

Mean slope

1,7°

Water table

183cm

Forest

85%

Crops

10%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)