HydroBASINS lev08 watershed · #7080596990
Bassin de Willis 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 : Buckingham, Cumberland, Goochland
Sub-basin area
717,6km²
Upstream area
717,6km²
Discharge
9,5m³/s
Mean elev.
127m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 387.8 km²54.0% of basin
- Cumberland329.8 km²45.9% of basin
- 0.4 km²0.1% of basin
7 intersecting protected areas
Bear Creek Lake
IUCN IIIState Park
1.31 km² overlap
Headwaters
IUCN VNatural Area
0.13 km² overlap
Willis River
IUCN VNatural Area
0.13 km² overlap
Rock Quarry
IUCN VNatural Area
0.13 km² overlap
Turkey Ridge
IUCN VNatural Area
0.08 km² overlap
Red Cedar
IUCN VNatural Area
0.06 km² overlap
Reserve Program
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 360 distinct species · 59 373 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 Willis River : 25 espèces reliées par 74 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 11 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°
13,3°C
Annual rain
1 085mm
Moisture idx (CMI)
-0,11
Runoff
417mm/an
PET
1 222mm
AET
888mm
Mean slope
2,0°
Water table
135cm
Forest
100%
Crops
12%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)