Ontologia

County · USA

Black Hawk

United States

DfaCold, no dry season, hot summer(100 %)

Species observed

1 881

Observations

276 078

Area

1 480km²

Ecological tissue

Sample of 37 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 Black Hawk : 28 espèces reliées par 74 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
74
Connectance
0.111
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

1 881 distinct species · 276 078 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

276 078 obs · 40 cellules
Obs. / cellule
≥ 93 873
25 389–93 872
5 896–25 388
688–5 895
< 688

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

Climate

Mean T°

8,9°C

Annual rain

946mm

Warmest m°

27,9°C

Coldest m°

-11,4°C

Elevation: 280 m on average (min 244 m, max 308 m)

Bioclimatic detailsExpert
Annual mean temp.
8,9°C
Annual rain
946mm
Warmest month
27,9°C
Coldest month
-11,4°C
Mean alt.
280m
Min
244m
Max
308m
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

6,2

Org. C

22,4g/kg

Clay

29,1%

Sand

24,6%

Silt

46,3%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
30,3g/kg
Clay
29,0%
Sand
24,7%
Silt
46,3%
5–15 cm
pH H₂O
6,2
Org. C
23,1g/kg
Clay
29,1%
Sand
24,5%
Silt
46,4%
15–30 cm
pH H₂O
6,1
Org. C
13,9g/kg
Clay
29,2%
Sand
24,5%
Silt
46,2%

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

Land cover

Forest9.1%
Crops67.9%
Built-up1.4%
Bare soil0.7%
Other (grassland, water…)20.9%

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

Hydrology14 basins · 12 lakes · 19 rivers

Hydrology metrics for this exact territory

Stream length here

295,2km

Lake surface here

2,43km²

Basins crossed

14

Max stream order

5

Max drainage

16 044km²

Discharge in basins

446,7m³/s

Mean precip.

869mm/an

Mean T°

8,0°C

Moisture idx

-0,11

Max snow

18%

Mean runoff

270mm/an

Mean elev. (basins)

287m

Rivers / streams (19, ord ≥ 4)

7 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

3,1nW

Built-up

140,7%

Pesticides

7,2kg/km²

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

Protected areas42

IUCN V · 39IUCN Not Assigned · 3
Complete list

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