Ontologia

HydroBASINS lev08 watershed · #7080385160

Bassin de Rivière Yamaska

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 5 administrative regions : Acton, Drummond, La Vallée-du-Richelieu, Le Bas-Richelieu, Les Maskoutains

Pfafstetter: 72530425

Sub-basin area

918km²

Upstream area

4 335,5km²

Discharge

98,08m³/s

Mean elev.

40m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rivière Yamaska63 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 975 distinct species · 367 145 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

367 145 obs · 22 cellules
Obs. / cellule
≥ 160 388
38 051–160 387
9 483–38 050
3 284–9 482
< 3 284

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 Yamaska : 24 espèces reliées par 83 interactions GloBI sur 4 types (connectance 13.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
83
Connectance
0.132
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

991mm

Moisture idx (CMI)

0,16

Runoff

652mm/an

PET

833mm

AET

660mm

Mean slope

0,3°

Water table

14cm

Forest

27%

Crops

73%

Urban

4%

Protected

0%

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