HydroBASINS lev08 watershed · #7080401260
Bassin de Rivière à la Tortue
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 2 administrative regions : Les Jardins-de-Napierville, Roussillon
Sub-basin area
109,7km²
Upstream area
109,9km²
Discharge
2m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 68.7 km²62.5% of basin
- 39.5 km²35.9% of basin
2 intersecting protected areas
Water fowl gathering area
2.20 km² overlap
Water fowl gathering area
0.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 115 distinct species · 79 942 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Bassin de Rivière à la Tortue : 18 espèces reliées par 79 interactions GloBI sur 4 types (connectance 18.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
6,5°C
Annual rain
948mm
Moisture idx (CMI)
0,11
Runoff
573mm/an
PET
848mm
AET
655mm
Mean slope
0,4°
Water table
10cm
Forest
3%
Crops
63%
Urban
27%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)