Ontologia

County · USA

Sweet Grass

United States

DfbCold, no dry season, warm summer(48 %)

Species observed

2 398

Observations

47 261

Area

4 834,6km²

Ecological tissue

Sample of 30 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 Sweet Grass : 21 espèces reliées par 64 interactions GloBI sur 4 types (connectance 14.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
64
Connectance
0.147
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

2 398 distinct species · 47 261 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 261 obs · 132 cellules
Obs. / cellule
≥ 4 084
884–4 083
191–883
48–190
< 48

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

4,6°C

Annual rain

532mm

Warmest m°

25,4°C

Coldest m°

-11,0°C

Elevation: 1 710 m on average (min 1 157 m, max 3 197 m)

Bioclimatic detailsExpert
Annual mean temp.
4,6°C
Annual rain
532mm
Warmest month
25,4°C
Coldest month
-11,0°C
Mean alt.
1 710m
Min
1 157m
Max
3 197m
Std. dev.
456m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(48 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,7

Org. C

28,1g/kg

Clay

26,1%

Sand

37,5%

Silt

36,4%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
42,7g/kg
Clay
25,1%
Sand
37,8%
Silt
37,0%
5–15 cm
pH H₂O
6,7
Org. C
26,3g/kg
Clay
26,2%
Sand
37,4%
Silt
36,5%
15–30 cm
pH H₂O
6,8
Org. C
15,2g/kg
Clay
27,1%
Sand
37,3%
Silt
35,6%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest20.4%
Crops3.7%
Built-up0.0%
Bare soil4.7%
Other (grassland, water…)71.2%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology19 basins · 8 lakes · 89 rivers

Hydrology metrics for this exact territory

Stream length here

1 039,7km

Lake surface here

3,41km²

Basins crossed

19

Max stream order

5

Max drainage

17 544km²

Discharge in basins

433,1m³/s

Mean precip.

493mm/an

Mean T°

4,7°C

Moisture idx

-0,43

Max snow

54%

Mean runoff

204mm/an

Mean elev. (basins)

1 726m

Watersheds crossing here

10 more basins

Lakes (8, top by area)

Rivers / streams (89, ord ≥ 4)

77 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

2,1%

Pesticides

2,3kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas5

IUCN V · 3IUCN Ib · 1IUCN Not Assigned · 1

Us-Mt-158-1

IUCN Not Assigned

Conservation Easement · 1995

50 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN