HydroBASINS lev08 watershed · #7080243930
Bassin de Valley River
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 : Division No. 16, Division No. 17, Division No. 20
Sub-basin area
1 515,3km²
Upstream area
3 071km²
Discharge
5,51m³/s
Mean elev.
436m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Valley River1224 km²
- Bassin de Pleasant Valley Creek332 km²
3 dept-equivalent regions (GADM L2)
- 1385.3 km²91.1% of basin
- 133.5 km²8.8% of basin
- 2.1 km²0.1% of basin
2 intersecting protected areas
National Park
1.77 km² overlap
NE-20-23-24 W
IUCN IVPrivate Land
0.67 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
639 distinct species · 2 776 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Valley River : 27 espèces reliées par 102 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 14 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
490mm
Moisture idx (CMI)
-0,32
Runoff
48mm/an
PET
725mm
AET
422mm
Mean slope
0,7°
Water table
8cm
Forest
54%
Crops
53%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)