Ontologia

County · USA

Snohomish

United States

CsbTemperate, dry summer, warm summer(49 %)

Species observed

7 581

Observations

2 653 473

Area

5 455,9km²

Ecological tissue

Sample of 29 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 Snohomish : 22 espèces + 7 bulles famille, 45 interactions GloBI documentées sur 3 types (connectance 11.1%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
29
Interactions affichées
45
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

7 581 distinct species · 2 653 473 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 653 473 obs · 212 cellules
Obs. / cellule
≥ 128 029
37 099–128 028
4 539–37 098
695–4 538
< 695

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

Climate

Mean T°

7,1°C

Annual rain

2 356mm

Warmest m°

21,9°C

Coldest m°

-3,1°C

Elevation: 653 m on average (min -162 m, max 2 842 m)

Bioclimatic detailsExpert
Annual mean temp.
7,1°C
Annual rain
2 356mm
Warmest month
21,9°C
Coldest month
-3,1°C
Mean alt.
653m
Min
-162m
Max
2 842m
Std. dev.
556m
Köppen-Geiger (dominant)
CsbTemperate, dry summer, warm summer(49 %)Temperate

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

Soil & lithology

pH H₂O

5,1

Org. C

66,9g/kg

Clay

11,3%

Sand

51,3%

Silt

37,5%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
98,0g/kg
Clay
11,3%
Sand
50,9%
Silt
37,8%
5–15 cm
pH H₂O
5,2
Org. C
64,1g/kg
Clay
11,4%
Sand
50,9%
Silt
37,8%
15–30 cm
pH H₂O
5,3
Org. C
38,6g/kg
Clay
11,1%
Sand
52,0%
Silt
36,8%

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

Land cover

Forest69.2%
Crops1.6%
Built-up1.1%
Bare soil3.4%
Other (grassland, water…)24.8%

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

Hydrology15 basins · 37 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

1 568,1km

Lake surface here

21,71km²

Basins crossed

15

Max stream order

5

Max drainage

4 532km²

Discharge in basins

687,2m³/s

Mean precip.

1 700mm/an

Mean T°

6,8°C

Moisture idx

0,52

Max snow

48%

Mean runoff

1 401mm/an

Mean elev. (basins)

692m

Watersheds crossing here

6 more basins

Lakes (37, top by area)

28 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

2,1nW

Built-up

109,5%

Pesticides

7,8kg/km²

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

Protected areas81

IUCN V · 50IUCN Not Assigned · 22IUCN Ia · 5IUCN Ib · 4🌊 Marine · 6

Wild Sky

IUCN Ib

Wilderness · 2008

433 km²

Morning Star

IUCN V

Natural Resources Conservation Area

136 km²

Complete list

+ 21 protected areas (top 60 shown)

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