Ruisseau· 10 segments
Upper South Branch Thunder Bay River
Crosses 3 administrative regions : Alpena, Montmorency, Oscoda
Total length
59km
Max discharge
2,6m³/s
Max Strahler
3
Segments matched
10
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- OscodaMichigan · United States26.7 kmin this dpt
- AlpenaMichigan · United States16.4 kmin this dpt
- MontmorencyMichigan · United States10.1 kmin this dpt
4 intersecting protected areas
State Forest
State Forest
Private Conservation Land
MNRTF Parcel 13
IUCN VConservation Area
1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
98 distinct species · 247 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 Upper South Branch Thunder Bay River : 25 espèces reliées par 62 interactions GloBI sur 3 types (connectance 10.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
59km
Max discharge
2,6m³/s
Max Strahler
3
Segments matched
10
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.