HydroBASINS lev08 watershed · #7080369300
Bassin de Rivière Coulonge
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 : Pontiac
Sub-basin area
927,1km²
Upstream area
2 372,3km²
Discharge
32,36m³/s
Mean elev.
370m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
17 intersecting protected areas
Land set aside Rivières-Noire-et-Coulonge
IUCN Not ReportedLand set aside
195.48 km² overlap
07152R038 Biological Refuge
IUCN IVBiological refuge
1.66 km² overlap
07352R054 Biological Refuge
IUCN IVBiological refuge
1.47 km² overlap
07152R034 Biological Refuge
IUCN IVBiological refuge
1.43 km² overlap
07152R037 Biological Refuge
IUCN IVBiological refuge
1.40 km² overlap
07152R081 Biological Refuge
IUCN IVBiological refuge
1.29 km² overlap
07152R042 Biological Refuge
IUCN IVBiological refuge
1.28 km² overlap
07152R050 Biological Refuge
IUCN IVBiological refuge
1.25 km² overlap
07152R039 Biological Refuge
IUCN IVBiological refuge
1.24 km² overlap
8 more protected areassorted by overlap area
07152R041 Biological Refuge
IUCN IVBiological refuge
1.13 km² overlap
07152R090 Biological Refuge
IUCN IVBiological refuge
0.93 km² overlap
07152R044 Biological Refuge
IUCN IVBiological refuge
0.83 km² overlap
07352R055 Biological Refuge
IUCN IVBiological refuge
0.78 km² overlap
07352R053 Biological Refuge
IUCN IVBiological refuge
0.73 km² overlap
07152R045 Biological Refuge
IUCN IVBiological refuge
0.68 km² overlap
07352R052 Biological Refuge
IUCN IVBiological refuge
0.65 km² overlap
07152R040 Biological Refuge
IUCN IVBiological refuge
0.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
102 distinct species · 1 139 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Coulonge : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 3 types (connectance 11.6%, filtre Serrano α=0.2). 9 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°
2,6°C
Annual rain
937mm
Moisture idx (CMI)
0,20
Runoff
409mm/an
PET
751mm
AET
604mm
Mean slope
3,8°
Water table
128cm
Forest
99%
Crops
0%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)