Ontologia

HydroBASINS lev08 watershed · #7080402010

Bassin de Fleuve Saint-Laurent

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 1 administrative regions : Communauté-Urbaine-de-Montréal

237% lakePfafstetter: 72530909

Sub-basin area

67,2km²

Upstream area

930 012,4km²

Discharge

9 996,41m³/s

Mean elev.

35m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fleuve Saint-Laurent208 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

1 386 distinct species · 47 482 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 482 obs · 1 cellules
Obs. / cellule
≥ 47 482
47 482–47 481
47 482–47 481
47 482–47 481
< 47 482

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

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 Bassin de Fleuve Saint-Laurent : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 116 interactions GloBI sur 5 types (connectance 13.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
116
Connectance
0.135
Patrimoniales
2
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°

6,3°C

Annual rain

950mm

Moisture idx (CMI)

0,12

Runoff

567mm/an

PET

834mm

AET

645mm

Mean slope

0,5°

Water table

16cm

Forest

2%

Crops

6%

Urban

76%

Protected

23%

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