HydroBASINS lev08 watershed · #7080325820
Bassin de Rivière Mégiscane
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 : Vallée-de-l'Or
Sub-basin area
1 539km²
Upstream area
7 309,9km²
Discharge
123,3m³/s
Mean elev.
416m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rivière Mégiscane868 km²
- Bassin de Rivière Macho714 km²
1 dept-equivalent regions (GADM L2)
- 1543.7 km²100.0% of basin
13 intersecting protected areas
Proposed biodiversity reserve
82.24 km² overlap
Land reserved for protected area
66.22 km² overlap
08451R032 Biological Refuge
IUCN IVBiological refuge
5.25 km² overlap
08451R012 Biological Refuge
IUCN IVBiological refuge
1.99 km² overlap
08451R027 Biological Refuge
IUCN IVBiological refuge
1.99 km² overlap
08462R009 Biological Refuge
IUCN IVBiological refuge
1.99 km² overlap
08462R008 Biological Refuge
IUCN IVBiological refuge
1.40 km² overlap
08462R007 Biological Refuge
IUCN IVBiological refuge
1.37 km² overlap
08462R023 Biological Refuge
IUCN IVBiological refuge
1.30 km² overlap
4 more protected areassorted by overlap area
08462R010 Biological Refuge
IUCN IVBiological refuge
0.68 km² overlap
08462R011 Biological Refuge
IUCN IVBiological refuge
0.33 km² overlap
Lac Washgamic Heronry
IUCN VIHeronry
0.29 km² overlap
Land reserved for protected area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
149 distinct species · 415 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Mégiscane : 18 espèces reliées par 84 interactions GloBI sur 4 types (connectance 15.9%, filtre Serrano α=0.2). 15 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°
0,7°C
Annual rain
980mm
Moisture idx (CMI)
0,31
Runoff
538mm/an
PET
676mm
AET
583mm
Mean slope
3,2°
Water table
60cm
Forest
87%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)