Ontologia

HydroBASINS lev08 watershed · #7080398220

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 7 administrative regions : Brome-Missisquoi, La Haute-Yamaska, Le Haut-Richelieu, Le Val-Saint-François, Les Maskoutains +2

15% lakePfafstetter: 72530426

Sub-basin area

1 655km²

Upstream area

1 655km²

Discharge

39,14m³/s

Mean elev.

159m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rivière Yamaska918 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

3 906 distinct species · 1 142 087 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 142 087 obs · 44 cellules
Obs. / cellule
≥ 363 102
37 681–363 101
17 234–37 680
6 194–17 233
< 6 194

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

Ecological tissue

Sample of 34 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 71 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
71
Connectance
0.127
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°

5,6°C

Annual rain

1 029mm

Moisture idx (CMI)

0,19

Runoff

733mm/an

PET

833mm

AET

682mm

Mean slope

2,4°

Water table

106cm

Forest

79%

Crops

28%

Urban

3%

Protected

2%

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