HydroBASINS lev08 watershed · #7080577460
Bassin de Shoal 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 7 administrative regions : Bond, Christian, Clinton, Macoupin, Madison +2
Sub-basin area
2 346,3km²
Upstream area
2 346,3km²
Discharge
18,4m³/s
Mean elev.
176m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Montgomery1195.5 km²50.9% of basin
- 795.7 km²33.9% of basin
- 325.7 km²13.9% of basin
- Madison23.6 km²1.0% of basin
- 5.1 km²0.2% of basin
- 2.6 km²0.1% of basin
- Washington0.0 km²0.0% of basin
6 intersecting protected areas
Wildlife Area
2.17 km² overlap
H & B Bremer
IUCN VWildlife Sanctuary
0.82 km² overlap
Reserve Program
0.63 km² overlap
Nature
IUCN VPreserve
0.35 km² overlap
Farm Service Agency Interest Of Il
IUCN Not AssignedConservation Easement
0.10 km² overlap
Roberts Cemetery Savanna
IUCN VNature Preserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 666 distinct species · 54 622 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Shoal Creek : 28 espèces reliées par 81 interactions GloBI sur 3 types (connectance 11.5%, 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°
12,2°C
Annual rain
970mm
Moisture idx (CMI)
-0,15
Runoff
255mm/an
PET
1 140mm
AET
818mm
Mean slope
0,5°
Water table
34cm
Forest
12%
Crops
69%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)