Rivière· 162 segments
Big Sioux River
Crosses 17 administrative regions : Brookings, Codington, Dakota, Day, Deuel +12
Total length
687km
Max discharge
60,1m³/s
Max Strahler
6
Segments matched
162
River geography17 admin regions · 0 communes
17 administrative regions crossed (GADM L2)
- MinnehahaSouth Dakota · United States93.7 kmin this dpt
- UnionSouth Dakota · United States90.4 kmin this dpt
- MoodySouth Dakota · United States79.5 kmin this dpt
- CodingtonSouth Dakota · United States72.5 kmin this dpt
- BrookingsSouth Dakota · United States71.2 kmin this dpt
- HamlinSouth Dakota · United States71.1 kmin this dpt
- LincolnSouth Dakota · United States67.9 kmin this dpt
- PlymouthIowa · United States41.9 kmin this dpt
- GrantSouth Dakota · United States39.4 kmin this dpt
- LyonIowa · United States36.7 kmin this dpt
- SiouxIowa · United States27.6 kmin this dpt
- DeuelSouth Dakota · United States22.1 kmin this dpt
- WoodburyIowa · United States7.3 kmin this dpt
- RobertsSouth Dakota · United States5.2 kmin this dpt
- RockMinnesota · United States1.9 kmin this dpt
- DaySouth Dakota · United States1.8 kmin this dpt
- DakotaNebraska · United States0.0 kmin this dpt
30 intersecting protected areas
Grant County
IUCN VWaterfowl Production Area
Roberts County
IUCN VWaterfowl Production Area
Codington County
IUCN VWaterfowl Production Area
Roberts County
IUCN VWaterfowl Production Area
Reserve Program
Reserve Program
Private Conservation Land
Moody County
IUCN VWaterfowl Production Area
Sioux Poinsett
IUCN VState Wildlife Management Area
21 more protected areassorted by area
Reserve Program
Reserve Program
Roberts County
IUCN VWaterfowl Production Area
Mickelson Marsh
IUCN VState Wildlife Management Area
Reserve Program
Big Sioux River
IUCN VWildlife Management Area
Reserve Program
Reserve Program
Newton Hills
IUCN VState Recreation Area
Five Ridge Prairie
IUCN VState Preserve
Watershed Protection
State Wildlife Management Area
Cotton Slough
IUCN VState Wildlife Management Area
Reserve Program
State Wildlife Management Area
Reserve Program
Big Sioux
IUCN VState Recreation Area
Watershed Protection
Watershed Protection
Reserve Program
Watershed Protection
1 page = 1 named river (aggregation of 162 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
43 distinct species · 67 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Big Sioux River : 29 espèces reliées par 37 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 2 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
687km
Max discharge
60,1m³/s
Max Strahler
6
Segments matched
162
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.