Ruisseau
Ruisseau Grand Tronc
Crosses 2 administrative regions : Beauharnois-Salaberry, Le Haut-Saint-Laurent
Total length
18km
Max discharge
1,6m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- Beauharnois-SalaberryQuébec · Canada26.7 kmin this dpt
- Le Haut-Saint-LaurentQuébec · Canada0.0 kmin this dpt
2 intersecting protected areas
Îles de la Paix Bird Sanctuary
IUCN IIIMigratory Bird Sanctuary
Water fowl gathering area
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
312 distinct species · 54 292 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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).
Indicateurs du tissu écologique
Tissu écologique de Ruisseau Grand Tronc : 20 espèces reliées par 81 interactions GloBI sur 5 types (connectance 17.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
18km
Max discharge
1,6m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.