Ontologia

HydroBASINS lev08 watershed · #7080398660

Bassin de Rivière du Nord

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 7 administrative regions : Argenteuil, Deux-Montagnes, La Rivière-du-Nord, Les Laurentides, Les Pays-d'en-Haut +2

33% lakePfafstetter: 72541020

Sub-basin area

2 280,7km²

Upstream area

2 280,8km²

Discharge

41,7m³/s

Mean elev.

277m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rivière des Outaouais1098 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

4 071 distinct species · 467 278 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

467 278 obs · 56 cellules
Obs. / cellule
≥ 48 183
22 558–48 182
8 947–22 557
3 098–8 946
< 3 098

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

Ecological tissue

Sample of 36 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 Rivière du Nord : 22 espèces reliées par 99 interactions GloBI sur 4 types (connectance 15.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
99
Connectance
0.157
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°

4,3°C

Annual rain

1 032mm

Moisture idx (CMI)

0,24

Runoff

577mm/an

PET

775mm

AET

638mm

Mean slope

4,3°

Water table

132cm

Forest

85%

Crops

8%

Urban

6%

Protected

0%

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