HydroBASINS lev08 watershed · #7080548680
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 5 administrative regions : Fairfield, Franklin, Licking, Perry, Pickaway
Sub-basin area
753km²
Upstream area
753km²
Discharge
8,67m³/s
Mean elev.
264m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 479.0 km²63.5% of basin
- 163.1 km²21.6% of basin
- Franklin84.4 km²11.2% of basin
- 17.0 km²2.3% of basin
- Perry10.3 km²1.4% of basin
9 intersecting protected areas
Walnut Woods 7
IUCN Not AssignedConservation Area
1.52 km² overlap
Reserve Program
1.50 km² overlap
Conservation Area
0.22 km² overlap
James H. Kelly
IUCN VPreserve
0.18 km² overlap
Schirm Farms Parkland
IUCN VParkland
0.16 km² overlap
Reserve Program
0.09 km² overlap
White Ash Parkland
IUCN VParkland
0.05 km² overlap
Blacklick
IUCN VNature Preserve
0.04 km² overlap
Parkland
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 963 distinct species · 133 536 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 Walnut Creek : 32 espèces reliées par 80 interactions GloBI sur 4 types (connectance 10.3%, filtre Serrano α=0.2). 8 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°
10,7°C
Annual rain
978mm
Moisture idx (CMI)
-0,09
Runoff
363mm/an
PET
1 077mm
AET
808mm
Mean slope
0,9°
Water table
64cm
Forest
7%
Crops
62%
Urban
8%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)