Ontologia

County · USA

Seward

United States

BSkArid, steppe, cold(100 %)

Species observed

828

Observations

22 640

Area

1 663,2km²

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 Seward : 27 espèces reliées par 69 interactions GloBI sur 4 types (connectance 13.1%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
69
Connectance
0.131
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

828 distinct species · 22 640 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 640 obs · 43 cellules
Obs. / cellule
≥ 10 550
651–10 549
193–650
79–192
< 79

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

Climate

Mean T°

13,4°C

Annual rain

511mm

Warmest m°

33,4°C

Coldest m°

-3,5°C

Elevation: 856 m on average (min 752 m, max 906 m)

Bioclimatic detailsExpert
Annual mean temp.
13,4°C
Annual rain
511mm
Warmest month
33,4°C
Coldest month
-3,5°C
Mean alt.
856m
Min
752m
Max
906m
Std. dev.
28m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(100 %)Arid

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

Soil & lithology

pH H₂O

7,4

Org. C

9,3g/kg

Clay

24,0%

Sand

45,6%

Silt

30,4%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,2
Org. C
12,0g/kg
Clay
23,2%
Sand
46,3%
Silt
30,4%
5–15 cm
pH H₂O
7,4
Org. C
9,2g/kg
Clay
23,7%
Sand
45,5%
Silt
30,7%
15–30 cm
pH H₂O
7,6
Org. C
6,6g/kg
Clay
25,2%
Sand
44,9%
Silt
29,9%

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

Land cover

Forest1.6%
Crops55.6%
Built-up0.2%
Bare soil1.0%
Other (grassland, water…)41.5%

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

Hydrology11 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

125,1km

Lake surface here

1,03km²

Basins crossed

11

Max stream order

5

Max drainage

16 517km²

Discharge in basins

4,5m³/s

Mean precip.

491mm/an

Mean T°

13,3°C

Moisture idx

-0,64

Max snow

3%

Mean runoff

13mm/an

Mean elev. (basins)

873m

Watersheds crossing here

2 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

24,1%

Pesticides

15,6kg/km²

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