HydroBASINS lev08 watershed · #7080359720
Bassin de Rivière de l'Orignal
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 3 administrative regions : Pontiac, Témiscamingue, Vallée-de-l'Or
Sub-basin area
3 522,8km²
Upstream area
3 523km²
Discharge
48,16m³/s
Mean elev.
356m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 2089.6 km²59.2% of basin
- 1222.5 km²34.6% of basin
- 220.3 km²6.2% of basin
30 intersecting protected areas
Proposed aquatic reserve
897.69 km² overlap
Land set aside Rivière-Dumoine
IUCN Not ReportedLand set aside
109.23 km² overlap
08152R086 Biological Refuge
IUCN IVBiological refuge
4.59 km² overlap
08152R103 Biological Refuge
IUCN IVBiological refuge
2.71 km² overlap
08152R076 Biological Refuge
IUCN IVBiological refuge
2.23 km² overlap
08152R094 Biological Refuge
IUCN IVBiological refuge
1.98 km² overlap
08152R050 Biological Refuge
IUCN IVBiological refuge
1.72 km² overlap
08152R095 Biological Refuge
IUCN IVBiological refuge
1.70 km² overlap
07352R010 Biological Refuge
IUCN IVBiological refuge
1.54 km² overlap
21 more protected areassorted by overlap area
08152R074 Biological Refuge
IUCN IVBiological refuge
1.49 km² overlap
08152R100 Biological Refuge
IUCN IVBiological refuge
1.44 km² overlap
08152R082 Biological Refuge
IUCN IVBiological refuge
1.39 km² overlap
07352R021 Biological Refuge
IUCN IVBiological refuge
1.39 km² overlap
07352R005 Biological Refuge
IUCN IVBiological refuge
1.33 km² overlap
07352R007 Biological Refuge
IUCN IVBiological refuge
1.31 km² overlap
07352R024 Biological Refuge
IUCN IVBiological refuge
1.30 km² overlap
08152R092 Biological Refuge
IUCN IVBiological refuge
1.30 km² overlap
07352R006 Biological Refuge
IUCN IVBiological refuge
1.18 km² overlap
08152R089 Biological Refuge
IUCN IVBiological refuge
1.17 km² overlap
08152R007 Biological Refuge
IUCN IVBiological refuge
1.16 km² overlap
08152R090 Biological Refuge
IUCN IVBiological refuge
1.14 km² overlap
07352R016 Biological Refuge
IUCN IVBiological refuge
1.13 km² overlap
07352R019 Biological Refuge
IUCN IVBiological refuge
1.12 km² overlap
08152R077 Biological Refuge
IUCN IVBiological refuge
1.06 km² overlap
07352R018 Biological Refuge
IUCN IVBiological refuge
1.06 km² overlap
08152R097 Biological Refuge
IUCN IVBiological refuge
1.02 km² overlap
07352R004 Biological Refuge
IUCN IVBiological refuge
0.93 km² overlap
07152R036 Biological Refuge
IUCN IVBiological refuge
0.93 km² overlap
07352R030 Biological Refuge
IUCN IVBiological refuge
0.92 km² overlap
08152R099 Biological Refuge
IUCN IVBiological refuge
0.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
228 distinct species · 1 323 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 de l'Orignal : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 5 types (connectance 9.9%, 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°
2,1°C
Annual rain
945mm
Moisture idx (CMI)
0,21
Runoff
447mm/an
PET
747mm
AET
605mm
Mean slope
2,8°
Water table
75cm
Forest
94%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)