Ontologia

Rivière· 6 segments

Lower South Branch Thunder Bay River

Crosses 2 administrative regions : Alcona, Alpena

rivière

Total length

53km

Max discharge

6,5m³/s

Max Strahler

4

Segments matched

6

River geography2 admin regions · 0 communes

Parent watershed

hybas-70804102701157 km²

2 administrative regions crossed (GADM L2)

  • Alpena
    Michigan · United States
    45.4 km
    in this dpt
  • Alcona
    Michigan · United States
    15.2 km
    in this dpt

9 intersecting protected areas

1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

129 distinct species · 363 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Lower South Branch Thunder Bay River : 29 espèces reliées par 75 interactions GloBI sur 4 types (connectance 11.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
75
Connectance
0.113
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydrology (HydroRIVERS v10)

Total length

53km

Max discharge

6,5m³/s

Max Strahler

4

Segments matched

6

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.