Ontologia

Rivière· 35 segments

Portage River

Crosses 11 administrative regions : Houghton, Jackson, Kalamazoo, Lake Erie, Lake Superior +6

rivière

Total length

269km

Max discharge

56,7m³/s

Max Strahler

5

Segments matched

35

River geography11 admin regions · 0 communes

Parent watershed

hybas-70804720202024 km²

11 administrative regions crossed (GADM L2)

  • Wood
    Ohio · United States
    50.4 km
    in this dpt
  • Ottawa
    Ohio · United States
    45.7 km
    in this dpt
  • Kalamazoo
    Michigan · United States
    39.4 km
    in this dpt
  • Jackson
    Michigan · United States
    32.2 km
    in this dpt
  • Sandusky
    Ohio · United States
    23.4 km
    in this dpt
  • Saint Joseph
    Michigan · United States
    22.5 km
    in this dpt
  • Lake Superior
    Michigan · United States
    8.0 km
    in this dpt
  • Livingston
    Michigan · United States
    6.8 km
    in this dpt
  • Washtenaw
    Michigan · United States
    6.2 km
    in this dpt
  • Lake Erie
    Ohio · United States
    5.9 km
    in this dpt
  • Houghton
    Michigan · United States
    0.0 km
    in this dpt

23 intersecting protected areas

14 more protected areas

1 page = 1 named river (aggregation of 35 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

121 distinct species · 527 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Portage River : 34 espèces reliées par 66 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
66
Connectance
0.081
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

269km

Max discharge

56,7m³/s

Max Strahler

5

Segments matched

35

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