Fleuve· 243 segments
Illinois River
Crosses 28 administrative regions : Adair, Benton, Brown, Bureau, Calhoun +23
Total length
828km
Max discharge
3 612,9m³/s
Max Strahler
8
Segments matched
243
River geography28 admin regions · 0 communes
28 administrative regions crossed (GADM L2)
- CherokeeOklahoma · United States144.8 kmin this dpt
- La SalleIllinois · United States72.8 kmin this dpt
- GreeneIllinois · United States62.4 kmin this dpt
- FultonIllinois · United States61.0 kmin this dpt
- PikeIllinois · United States60.0 kmin this dpt
- CalhounIllinois · United States60.0 kmin this dpt
- MasonIllinois · United States54.5 kmin this dpt
- ScottIllinois · United States51.2 kmin this dpt
- PutnamIllinois · United States42.9 kmin this dpt
- GrundyIllinois · United States42.5 kmin this dpt
- AdairOklahoma · United States42.1 kmin this dpt
- CassIllinois · United States40.2 kmin this dpt
- SequoyahOklahoma · United States37.7 kmin this dpt
- WashingtonArkansas · United States32.4 kmin this dpt
- MarshallIllinois · United States32.3 kmin this dpt
- BureauIllinois · United States29.6 kmin this dpt
- TazewellIllinois · United States29.2 kmin this dpt
- BentonArkansas · United States28.5 kmin this dpt
- PeoriaIllinois · United States27.2 kmin this dpt
- BrownIllinois · United States23.7 kmin this dpt
- JerseyIllinois · United States20.9 kmin this dpt
- SchuylerIllinois · United States11.3 kmin this dpt
- MorganIllinois · United States11.2 kmin this dpt
- Saint CharlesMissouri · United States7.4 kmin this dpt
- JacksonColorado · United States5.9 kmin this dpt
- DelawareOklahoma · United States2.6 kmin this dpt
- WoodfordIllinois · United States2.5 kmin this dpt
- MuskogeeOklahoma · United States0.2 kmin this dpt
30 intersecting protected areas
Arapaho
IUCN IVNational Wildlife Refuge
Cookson Hills Fee
IUCN VPrivate Conservation Land
State Wildlife Management Area
Cookson
IUCN VWildlife Management Area
Sanganois State Fish and
IUCN VWildlife Area
McClellan Kerr
IUCN VWildlife Management Area
Emiquon
IUCN IVNational Wildlife Refuge
Sand Ridge
IUCN VState Forest
The Emiquon Complex
IUCN Not ReportedWetland of International Importance (Ramsar Site)
21 more protected areassorted by area
Rice Lake State Fish and
IUCN VWildlife Area
Chautauqua
IUCN IVNational Wildlife Refuge
Marshall State Fish and
IUCN VWildlife Area
Reserve Program
Wildlife Area
Meredosia
IUCN IVNational Wildlife Refuge
Starved Rock Nature
IUCN VNature Preserve
Tenkiller
IUCN VWildlife Management Area
Wildlife Area
Wildlife Area
Wildlife Area
Wildlife Area
Wildlife Area
Wildlife Area
Pekin Lake
IUCN VConservation Area
Wildlife Management Area
Wildlife Area
Us-Mo-42-8
IUCN Not AssignedConservation Easement
Meredosia Refuge Fee
IUCN VRefuge
Nature Preserve
Senachwine Lake Fee
IUCN VLake
1 page = 1 named river (aggregation of 243 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
55 distinct species · 143 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Illinois River : 21 espèces reliées par 36 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
828km
Max discharge
3 612,9m³/s
Max Strahler
8
Segments matched
243
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.