HydroBASINS lev08 watershed · #7080503090
Bassin de Rock 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 : Henry, Mercer, Rock Island
Sub-basin area
403,8km²
Upstream area
28 284,9km²
Discharge
240,68m³/s
Mean elev.
217m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rock River553 km²
- Bassin de Green River335 km²
3 dept-equivalent regions (GADM L2)
- 330.8 km²81.8% of basin
- Henry48.8 km²12.1% of basin
- 24.8 km²6.1% of basin
8 intersecting protected areas
Rock River - Carr Island
IUCN VConservation Area
2.04 km² overlap
Beling Ecological
IUCN VPreserve
0.43 km² overlap
Black Hawk Forest
IUCN VNature Preserve
0.40 km² overlap
Nature Preserve
0.27 km² overlap
Farm Service Agency Interest Of Il
IUCN Not AssignedConservation Easement
0.19 km² overlap
Black Hawk
IUCN VForest
0.01 km² overlap
Conservation Area
0.01 km² overlap
Reserve Program
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 912 distinct species · 124 598 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Rock River : 31 espèces reliées par 79 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 9 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°
9,8°C
Annual rain
906mm
Moisture idx (CMI)
-0,09
Runoff
266mm/an
PET
1 002mm
AET
765mm
Mean slope
1,2°
Water table
89cm
Forest
5%
Crops
44%
Urban
14%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)