Ontologia

County · USA

Del Norte

United States

CsbTemperate, dry summer, warm summer(99 %)

Species observed

5 642

Observations

450 642

Area

2 630,6km²

Ecological tissue

Sample of 35 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 Del Norte : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 3 types (connectance 13.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
78
Connectance
0.131
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

5 642 distinct species · 450 642 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

450 642 obs · 75 cellules
Obs. / cellule
≥ 93 436
22 153–93 435
1 902–22 152
998–1 901
< 998

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

Climate

Mean T°

10,4°C

Annual rain

2 570mm

Warmest m°

23,5°C

Coldest m°

1,6°C

Elevation: 649 m on average (min -18 m, max 1 725 m)

Bioclimatic detailsExpert
Annual mean temp.
10,4°C
Annual rain
2 570mm
Warmest month
23,5°C
Coldest month
1,6°C
Mean alt.
649m
Min
-18m
Max
1 725m
Std. dev.
403m
Köppen-Geiger (dominant)
CsbTemperate, dry summer, warm summer(99 %)Temperate

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

Soil & lithology

pH H₂O

5,5

Org. C

79,6g/kg

Clay

28,5%

Sand

34,1%

Silt

37,4%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
144,8g/kg
Clay
27,6%
Sand
34,3%
Silt
38,1%
5–15 cm
pH H₂O
5,5
Org. C
59,1g/kg
Clay
28,1%
Sand
34,4%
Silt
37,6%
15–30 cm
pH H₂O
5,5
Org. C
34,8g/kg
Clay
29,9%
Sand
33,5%
Silt
36,6%

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

Land cover

Forest84.0%
Crops0.7%
Built-up0.1%
Bare soil1.1%
Other (grassland, water…)14.0%

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

Hydrology9 basins · 3 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

900,9km

Lake surface here

9,83km²

Basins crossed

9

Max stream order

7

Max drainage

31 130km²

Discharge in basins

260,8m³/s

Mean precip.

1 680mm/an

Mean T°

9,7°C

Moisture idx

0,39

Max snow

28%

Mean runoff

1 472mm/an

Mean elev. (basins)

640m

Watersheds crossing here

Lakes (3, top by area)

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

0hab/km²

Night light

0,1nW

Built-up

14,5%

Pesticides

0,3kg/km²

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

Protected areas23

IUCN V · 14IUCN Ia · 4IUCN Ib · 2IUCN Not Applicable · 1IUCN II · 1IUCN IV · 1🌊 Marine · 9

Siskiyou

IUCN Ib

Wilderness · 1984

728 km²

Redwood

IUCN II

National Park · 1968

316 km²

Complete list

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