HydroBASINS lev08 watershed · #7080560520
Bassin de Walnut Creek
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 : Ross
Sub-basin area
328,9km²
Upstream area
13 452,1km²
Discharge
159,38m³/s
Mean elev.
248m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Scioto River242 km²
- Bassin de Paint Creek29 km²
1 dept-equivalent regions (GADM L2)
- 329.2 km²100.0% of basin
2 intersecting protected areas
Tar Hollow
IUCN VState Forest
22.03 km² overlap
Ross Lake
IUCN VWildlife Area
4.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
822 distinct species · 22 644 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Walnut Creek : 27 espèces reliées par 69 interactions GloBI sur 3 types (connectance 10.4%, filtre Serrano α=0.2). 10 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°
11,1°C
Annual rain
1 015mm
Moisture idx (CMI)
-0,09
Runoff
339mm/an
PET
1 113mm
AET
833mm
Mean slope
5,0°
Water table
212cm
Forest
83%
Crops
28%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)