Ontologia

Rivière· 202 segments

Grand River

Crosses 27 administrative regions : Ashtabula, Brant, Clinton, Columbia, Dodge +21

rivière

Total length

1 986km

Max discharge

135,9m³/s

Max Strahler

5

Segments matched

202

River geography27 admin regions · 0 communes

Parent watershed

hybas-70804720202024 km²

27 administrative regions crossed (GADM L2)

  • Ionia
    Michigan · United States
    94.1 km
    in this dpt
  • Dufferin
    Ontario · Canada
    72.0 km
    in this dpt
  • Kent
    Michigan · United States
    67.7 km
    in this dpt
  • Brant
    Ontario · Canada
    67.4 km
    in this dpt
  • Jackson
    Michigan · United States
    64.9 km
    in this dpt
  • Haldimand-Norfolk
    Ontario · Canada
    62.2 km
    in this dpt
  • Green Lake
    Wisconsin · United States
    57.7 km
    in this dpt
  • Waterloo
    Ontario · Canada
    52.4 km
    in this dpt
  • Eaton
    Michigan · United States
    51.9 km
    in this dpt
  • Ottawa
    Michigan · United States
    51.2 km
    in this dpt
  • Wellington
    Ontario · Canada
    42.7 km
    in this dpt
  • Lake
    Ohio · United States
    42.1 km
    in this dpt
  • Ingham
    Michigan · United States
    41.2 km
    in this dpt
  • Ashtabula
    Ohio · United States
    35.9 km
    in this dpt
  • Trumbull
    Ohio · United States
    22.4 km
    in this dpt
  • Geauga
    Ohio · United States
    13.3 km
    in this dpt
  • Clinton
    Michigan · United States
    11.6 km
    in this dpt
  • Fond du Lac
    Wisconsin · United States
    9.9 km
    in this dpt
  • Lake Erie
    Ohio · United States
    9.3 km
    in this dpt
  • Marquette
    Wisconsin · United States
    7.8 km
    in this dpt
  • Hillsdale
    Michigan · United States
    4.0 km
    in this dpt
  • Grey
    Ontario · Canada
    3.9 km
    in this dpt
  • Lake Erie
    Ontario · Canada
    2.1 km
    in this dpt
  • Lake Michigan
    Michigan · United States
    1.9 km
    in this dpt
  • Columbia
    Wisconsin · United States
    0.2 km
    in this dpt
  • Dodge
    Wisconsin · United States
    0.0 km
    in this dpt
  • Portage
    Ohio · United States
    0.0 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 202 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

553 distinct species · 78 625 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Grand River : 24 espèces reliées par 79 interactions GloBI sur 4 types (connectance 12.5%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
79
Connectance
0.125
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

1 986km

Max discharge

135,9m³/s

Max Strahler

5

Segments matched

202

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