Thunder Basin - Cheyenne River (Pca)
IUCN VEasement · 2001
20 km²
County · USA
Weston
United States
BSkArid, steppe, cold(85 %)
Species observed
1 353
Observations
39 211
Area
6 231,3km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Weston : 23 espèces reliées par 66 interactions GloBI sur 3 types (connectance 14.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
31
Interactions affichées
66
Connectance
0.142
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
1 353 distinct species · 39 211 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,7°C
Annual rain
407mm
Warmest m°
30,1°C
Coldest m°
-9,0°C
Elevation: 1 358 m on average (min 1 111 m, max 1 977 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,7°C
Annual rain
407mm
Warmest month
30,1°C
Coldest month
-9,0°C
Mean alt.
1 358m
Min
1 111m
Max
1 977m
Std. dev.
144m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(85 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,2
Org. C
16,1g/kg
Clay
28,9%
Sand
34,9%
Silt
36,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,0
Org. C
23,6g/kg
Clay
26,8%
Sand
36,4%
Silt
36,8%
5–15 cm
pH H₂O
7,2
Org. C
15,1g/kg
Clay
28,3%
Sand
35,3%
Silt
36,4%
15–30 cm
pH H₂O
7,5
Org. C
9,6g/kg
Clay
31,6%
Sand
33,0%
Silt
35,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest6.6%
Crops4.0%
Built-up0.0%
Bare soil3.2%
Other (grassland, water…)86.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 8 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
379,8km
Lake surface here
2,41km²
Basins crossed
21
Max stream order
5
Max drainage
13 878km²
Discharge in basins
38,5m³/s
Mean precip.
379mm/an
Mean T°
7,1°C
Moisture idx
-0,64
Max snow
29%
Mean runoff
52mm/an
Mean elev. (basins)
1 371m
Watersheds crossing here
- Bassin de Beaver Creeksub-area1 147,5 km²overlap1149.81 km²18%
- Bassin de Cheyenne Riversub-area964,8 km²overlap966.71 km²16%
- Bassin de Little Oil Creeksub-area687,5 km²overlap688.55 km²11%
- Bassin de Cheyenne Riversub-area1 456,9 km²overlap622.70 km²10%
- Bassin de Beaver Creeksub-area1 036,8 km²overlap501.07 km²8%
- Bassin de Beaver Creeksub-area390 km²overlap390.74 km²6%
- Bassin de Belle Fourche Riversub-area876,1 km²overlap371.16 km²6%
- Bassin de Belle Fourche Riversub-area324,8 km²overlap289.32 km²5%
- Bassin de Cheyenne Riversub-area599,7 km²overlap250.84 km²4%
12 more basinssorted by overlap
- Bassin de Cheyenne Riversub-area756 km²overlap244.91 km²4%
- Bassin de Beaver Creeksub-area285 km²overlap183.65 km²3%
- Bassin de Inyan Kara Creeksub-area864,9 km²overlap150.55 km²2%
- Bassin de Beaver Creeksub-area130,5 km²overlap130.74 km²2%
- Basin #30880sub-area292,4 km²overlap95.63 km²2%
- Bassin de Cheyenne Riversub-area107,1 km²overlap71.84 km²1%
- Bassin de Beaver Creeksub-area34,7 km²overlap34.75 km²1%
- Bassin de Cheyenne Riversub-area597,4 km²overlap33.33 km²1%
- Bassin de Spearfish Creeksub-area2 397 km²overlap30.41 km²0%
- Bassin de Belle Fourche Riversub-area489,6 km²overlap23.96 km²0%
- Bassin de Beaver Creeksub-area607,2 km²overlap0.56 km²0%
- Bassin de Antelope Creeksub-area876,3 km²overlap0.02 km²0%
Lakes (8, 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
3,2%
Pesticides
1,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN V · 4
Thunder Basin - Cheyenne River (Pca) Fee
IUCN VPrivate Conservation Land · 2001
8 km²
Skull Creek (Pca)
IUCN VEasement · 2000
5 km²
Skull Creek (Pca) Fee
IUCN VPrivate Conservation Land · 2000
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN