HydroBASINS lev08 watershed · #7080034150
Bassin de Rivière Laval
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 : La Haute-Côte-Nord
Sub-basin area
641,6km²
Upstream area
641,6km²
Discharge
12,98m³/s
Mean elev.
257m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 643.6 km²100.0% of basin
9 intersecting protected areas
09751R162 Biological Refuge
IUCN IVBiological refuge
2.29 km² overlap
09751R164 Biological Refuge
IUCN IVBiological refuge
1.46 km² overlap
09751R163 Biological Refuge
IUCN IVBiological refuge
1.39 km² overlap
09751R158 Biological Refuge
IUCN IVBiological refuge
1.00 km² overlap
09751R161 Biological Refuge
IUCN IVBiological refuge
0.94 km² overlap
09751R048 Biological Refuge
IUCN IVBiological refuge
0.57 km² overlap
Rare forest ecosystem
0.33 km² overlap
Land reserved for protected area
0.03 km² overlap
Water fowl gathering area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
320 distinct species · 2 222 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Laval : 29 espèces reliées par 89 interactions GloBI sur 3 types (connectance 12.7%, 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°
1,3°C
Annual rain
962mm
Moisture idx (CMI)
0,31
Runoff
638mm/an
PET
660mm
AET
563mm
Mean slope
7,9°
Water table
155cm
Forest
100%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)