Big Sioux River
IUCN VWildlife Management Area
6 km²
County · USA
Lyon
United States
DfaCold, no dry season, hot summer(100 %)
Species observed
1 074
Observations
34 223
Area
1 525,4km²
Ecological tissue
Sample of 40 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Lyon : 30 espèces reliées par 112 interactions GloBI sur 4 types (connectance 14.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
112
Connectance
0.144
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 074 distinct species · 34 223 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,1°C
Annual rain
742mm
Warmest m°
28,2°C
Coldest m°
-12,1°C
Elevation: 430 m on average (min 376 m, max 482 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,1°C
Annual rain
742mm
Warmest month
28,2°C
Coldest month
-12,1°C
Mean alt.
430m
Min
376m
Max
482m
Std. dev.
15m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,4
Org. C
26,5g/kg
Clay
37,6%
Sand
10,1%
Silt
52,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,3
Org. C
34,9g/kg
Clay
37,1%
Sand
10,5%
Silt
52,4%
5–15 cm
pH H₂O
6,4
Org. C
26,6g/kg
Clay
37,7%
Sand
10,1%
Silt
52,2%
15–30 cm
pH H₂O
6,5
Org. C
18,0g/kg
Clay
38,1%
Sand
9,8%
Silt
52,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest3.9%
Crops82.4%
Built-up0.3%
Bare soil0.3%
Other (grassland, water…)13.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 0 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
188,7km
Basins crossed
8
Max stream order
5
Max drainage
14 455km²
Discharge in basins
41,7m³/s
Mean precip.
674mm/an
Mean T°
7,4°C
Moisture idx
-0,32
Max snow
19%
Mean runoff
155mm/an
Mean elev. (basins)
438m
Watersheds crossing here
- Bassin de Otter Creeksub-area1 208,9 km²overlap448.57 km²29%
- Bassin de Big Sioux Riversub-area1 176,8 km²overlap325.87 km²21%
- Bassin de Rock Riversub-area341,5 km²overlap323.66 km²21%
- Bassin de Mud Creeksub-area359,5 km²overlap257.40 km²17%
- Bassin de Rock Riversub-area426 km²overlap98.56 km²6%
- Bassin de Rock Riversub-area480,5 km²overlap37.25 km²2%
- Bassin de Kanaranzi Creeksub-area519 km²overlap29.61 km²2%
- Bassin de Little Rock Riversub-area4,2 km²overlap4.20 km²0%
Rivers / streams (8, ord ≥ 4)
- Rock Riverord 6len here47.21 km6%total776 km
- Little Rock Riverord 5len here47.09 km55%total86 km
- Big Sioux Riverord 6len here36.67 km5%total730 km
- Kanaranzi Creekord 4len here27.10 km34%total80 km
- Otter Creekord 4len here13.99 km1%total1381 km
- Whitney Creekord 1len here7.56 km100%total8 km
- Reo Grande Creekord 3len here7.54 km100%total8 km
- Mud Creekord 6len here1.56 km0%total1406 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
35,3%
Pesticides
7,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas19
IUCN V · 19
Little Rock River
IUCN VWildlife Area
2 km²
Peterson Prairie
IUCN VWildlife Area
1 km²
Emergency Wetlands Reserve Program (EWetlands Reserve Program (WRP)), Lyon, IA
IUCN VReserve Program · 1995
1 km²
Blood Run National Historic Landmark Area Tcf Tract
IUCN VNational Historic Landmark · 2014
1 km²
Boon Ranch
IUCN VWildlife Area
1 km²
Complete list19 protected areas
- Big Sioux RiverWildlife Management AreaIUCN V6 km²
- Little Rock RiverWildlife AreaIUCN V2 km²
- Peterson PrairieWildlife AreaIUCN V1 km²
- Emergency Wetlands Reserve Program (EWetlands Reserve Program (WRP)), Lyon, IAReserve ProgramIUCN V19951 km²
- Blood Run National Historic Landmark Area Tcf TractNational Historic LandmarkIUCN V20141 km²
- Boon RanchWildlife AreaIUCN V1 km²
- Hidden BridgeWildlife AreaIUCN V1 km²
- Ackermen's River WoodsLocal Conservation AreaIUCN V1 km²
- Gitchie ManitouState PreserveIUCN V1 km²
- George Rural Water AreaLocal Conservation AreaIUCN V0 km²
- BlankespoonWildlife AreaIUCN V0 km²
- Big John'sState Wildlife Management AreaIUCN V0 km²
- BoersmaWildlife AreaIUCN V0 km²
- DoonWildlife AreaIUCN V0 km²
- WRPState Conservation AreaIUCN V0 km²
- VenengaWildlife AreaIUCN V0 km²
- Lakewood CornersWildlife AreaIUCN V0 km²
- Blood Run National Historic Landmark Area Tcf TractNational Historic LandmarkIUCN V20140 km²
- Roeman-Stettrichs AreaLocal Conservation AreaIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN