HydroBASINS lev08 watershed · #7080305640
Bassin de Rivière Ouasiemsca
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 1 administrative regions : Maria-Chapdelaine
Sub-basin area
3 462,2km²
Upstream area
3 462,2km²
Discharge
59,51m³/s
Mean elev.
403m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 3473.6 km²100.0% of basin
21 intersecting protected areas
02551R107 Biological Refuge
IUCN IVBiological refuge
10.34 km² overlap
02551R109 Biological Refuge
IUCN IVBiological refuge
7.31 km² overlap
02551R085 Biological Refuge
IUCN IVBiological refuge
6.28 km² overlap
02551R159 Biological Refuge
IUCN IVBiological refuge
5.44 km² overlap
02551R108 Biological Refuge
IUCN IVBiological refuge
5.33 km² overlap
02551R106 Biological Refuge
IUCN IVBiological refuge
4.49 km² overlap
02551R076 Biological Refuge
IUCN IVBiological refuge
4.49 km² overlap
02551R057 Biological Refuge
IUCN IVBiological refuge
4.28 km² overlap
02551R077 Biological Refuge
IUCN IVBiological refuge
3.93 km² overlap
12 more protected areassorted by overlap area
02551R080 Biological Refuge
IUCN IVBiological refuge
3.12 km² overlap
02551R058 Biological Refuge
IUCN IVBiological refuge
3.08 km² overlap
02551R081 Biological Refuge
IUCN IVBiological refuge
2.83 km² overlap
02551R084 Biological Refuge
IUCN IVBiological refuge
2.44 km² overlap
02551R037 Biological Refuge
IUCN IVBiological refuge
1.95 km² overlap
02551R110 Biological Refuge
IUCN IVBiological refuge
1.66 km² overlap
02551R083 Biological Refuge
IUCN IVBiological refuge
1.48 km² overlap
02551R082 Biological Refuge
IUCN IVBiological refuge
1.40 km² overlap
02551R160 Biological Refuge
IUCN IVBiological refuge
1.28 km² overlap
02551R087 Biological Refuge
IUCN IVBiological refuge
1.26 km² overlap
02551R060 Biological Refuge
IUCN IVBiological refuge
1.14 km² overlap
02551R035 Biological Refuge
IUCN IVBiological refuge
0.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
253 distinct species · 3 892 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 Bassin de Rivière Ouasiemsca : 16 espèces reliées par 123 interactions GloBI sur 3 types (connectance 23.3%, filtre Serrano α=0.2). 17 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°
-0,1°C
Annual rain
924mm
Moisture idx (CMI)
0,31
Runoff
544mm/an
PET
639mm
AET
549mm
Mean slope
3,8°
Water table
76cm
Forest
83%
Crops
0%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)