Ontologia

Rivière· 51 segments

Mad River

Crosses 9 administrative regions : Addison, Dufferin, Grey, Jefferson, Lewis +4

rivière

Total length

578km

Max discharge

8,6m³/s

Max Strahler

4

Segments matched

51

River geography9 admin regions · 0 communes

Parent watershed

hybas-70804511701015 km²

9 administrative regions crossed (GADM L2)

  • Simcoe
    Ontario · Canada
    52.0 km
    in this dpt
  • Washington
    Vermont · United States
    46.6 km
    in this dpt
  • Oswego
    New York · United States
    28.8 km
    in this dpt
  • Oneida
    New York · United States
    22.2 km
    in this dpt
  • Grey
    Ontario · Canada
    16.0 km
    in this dpt
  • Lewis
    New York · United States
    15.9 km
    in this dpt
  • Jefferson
    New York · United States
    4.1 km
    in this dpt
  • Addison
    Vermont · United States
    1.9 km
    in this dpt
  • Dufferin
    Ontario · Canada
    0.0 km
    in this dpt

29 intersecting protected areas

20 more protected areas

1 page = 1 named river (aggregation of 51 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

30 distinct species · 50 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 14 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 Mad River : 13 espèces reliées par 9 interactions GloBI sur 2 types (connectance 9.9%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
9
Connectance
0.099
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

578km

Max discharge

8,6m³/s

Max Strahler

4

Segments matched

51

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