Ontologia

HydroBASINS lev08 watershed · #7080400780

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

917% lakePfafstetter: 72530905

Sub-basin area

6,9km²

Upstream area

932 803,3km²

Discharge

10 046,07m³/s

Mean elev.

6m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fleuve Saint-Laurent235 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

877 distinct species · 44 102 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

44 102 obs · 1 cellules
Obs. / cellule
≥ 44 102
44 102–44 101
44 102–44 101
44 102–44 101
< 44 102

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

Ecological tissue

Sample of 40 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 : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 4 types (connectance 9.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
76
Connectance
0.097
Patrimoniales
1
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°

6,6°C

Annual rain

962mm

Moisture idx (CMI)

0,12

Runoff

578mm/an

PET

850mm

AET

654mm

Mean slope

0,1°

Water table

6cm

Forest

0%

Crops

17%

Urban

31%

Protected

83%

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