South Fork
IUCN VWildlife Area
4 km²
County · USA
Cheyenne
United States
BSkArid, steppe, cold(96 %)
Species observed
1 058
Observations
25 640
Area
2 639,4km²
Ecological tissue
Sample of 33 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 Cheyenne : 23 espèces reliées par 91 interactions GloBI sur 3 types (connectance 17.2%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
33
Interactions affichées
91
Connectance
0.172
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
1 058 distinct species · 25 640 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,9°C
Annual rain
510mm
Warmest m°
31,9°C
Coldest m°
-5,7°C
Elevation: 1 054 m on average (min 918 m, max 1 152 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,9°C
Annual rain
510mm
Warmest month
31,9°C
Coldest month
-5,7°C
Mean alt.
1 054m
Min
918m
Max
1 152m
Std. dev.
44m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(96 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,1
Org. C
13,0g/kg
Clay
28,2%
Sand
30,2%
Silt
41,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,9
Org. C
17,5g/kg
Clay
27,4%
Sand
30,6%
Silt
42,0%
5–15 cm
pH H₂O
7,0
Org. C
12,4g/kg
Clay
27,8%
Sand
30,5%
Silt
41,7%
15–30 cm
pH H₂O
7,3
Org. C
9,2g/kg
Clay
29,4%
Sand
29,6%
Silt
41,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.4%
Crops61.2%
Built-up0.0%
Bare soil1.9%
Other (grassland, water…)36.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 1 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
191,3km
Lake surface here
0,39km²
Basins crossed
8
Max stream order
4
Max drainage
21 849km²
Discharge in basins
4,3m³/s
Mean precip.
462mm/an
Mean T°
10,3°C
Moisture idx
-0,62
Max snow
7%
Mean runoff
16mm/an
Mean elev. (basins)
1 087m
Watersheds crossing here
- Bassin de South Fork Republican Riversub-area2 662,4 km²overlap1746.76 km²66%
- Bassin de Little Beaver Creeksub-area1 614,7 km²overlap580.87 km²22%
- Bassin de North Fork Republican Riversub-area656,6 km²overlap86.71 km²3%
- Bassin de Arikaree Riversub-area376,5 km²overlap73.08 km²3%
- Bassin de Beaver Creeksub-area763,6 km²overlap64.74 km²2%
- Bassin de Republican Riversub-area254,5 km²overlap49.24 km²2%
- Bassin de Republican Riversub-area1 415,7 km²overlap20.93 km²1%
- Bassin de North Fork Republican Riversub-area612,4 km²overlap16.97 km²1%
Lakes (1, top by area)
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
4,1%
Pesticides
27,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN V · 4
St. Francis
IUCN VWildlife Area
2 km²
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Cheyenne, KS
IUCN VConservation Easement · 2019
1 km²
Wetlands Reserve Program (WRP), Cheyenne, KS
IUCN VReserve Program · 1998
1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN