Ontologia

HydroBASINS lev08 watershed · #7080429830

Bassin de Mad River

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 3 administrative regions : Dufferin, Grey, Simcoe

Pfafstetter: 72560446

Sub-basin area

479,6km²

Upstream area

479,6km²

Discharge

3,08m³/s

Mean elev.

373m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nottawasaga River2182 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

26 intersecting protected areas

17 more protected areas

  • Farquharson

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.42 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.40 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.40 km² overlap

  • Stephens

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.39 km² overlap

  • Noisy River

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.33 km² overlap

  • Dunedin Ravine

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.32 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.31 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.29 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.27 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.20 km² overlap

  • Harvey

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.16 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.15 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.09 km² overlap

  • Gardner

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.06 km² overlap

  • Robinson

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.03 km² overlap

  • Leys Burn

    IUCN Ia

    NGO/Land Trust/Agency - Fee Simple Property

    0.01 km² overlap

  • DUC Fee Simple Lands

    IUCN IV

    Ownership by Environmental Non-Governmental Organization

    0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 550 distinct species · 151 292 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

151 292 obs · 12 cellules
Obs. / cellule
≥ 103 128
17 929–103 127
5 436–17 928
3 651–5 435
< 3 651

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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 Bassin de Mad River : 26 espèces reliées par 62 interactions GloBI sur 3 types (connectance 10.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
62
Connectance
0.104
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

5,7°C

Annual rain

919mm

Moisture idx (CMI)

0,10

Runoff

209mm/an

PET

825mm

AET

625mm

Mean slope

1,8°

Water table

150cm

Forest

32%

Crops

35%

Urban

0%

Protected

1%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)