HydroBASINS lev08 watershed · #7080540800
Bassin de West Fork Big 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 4 administrative regions : Daviess, Decatur, Harrison, Ringgold
Sub-basin area
996,8km²
Upstream area
996,8km²
Discharge
7,43m³/s
Mean elev.
311m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Harrison745.0 km²74.7% of basin
- RinggoldIowa · United States106.2 km²10.6% of basin
- DecaturIowa · United States97.1 km²9.7% of basin
- Daviess49.6 km²5.0% of basin
10 intersecting protected areas
Private Conservation Land
12.89 km² overlap
Grand Trace
IUCN VConservation Area
6.15 km² overlap
Conservation Easement
2.90 km² overlap
Wildlife Management Area
2.23 km² overlap
Grand River Grasslands
IUCN VEasement
1.58 km² overlap
National Wildlife Refuge
0.96 km² overlap
Reserve Program
0.24 km² overlap
Reserve Program
0.21 km² overlap
Ringgold
IUCN VWildlife Management Area
0.09 km² overlap
1 more protected areassorted by overlap area
Conservation Easement
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
823 distinct species · 38 954 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 West Fork Big Creek : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 4 types (connectance 11.4%, 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°
10,3°C
Annual rain
903mm
Moisture idx (CMI)
-0,16
Runoff
235mm/an
PET
1 077mm
AET
764mm
Mean slope
1,7°
Water table
123cm
Forest
3%
Crops
58%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)