Ontologia

Municipality · SWE

Hudiksvall

Sweden

DfbCold, no dry season, warm summer(73 %)

Species observed

10 320

Observations

646 039

Area

2 726,1km²

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 Hudiksvall : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 123 interactions GloBI sur 6 types (connectance 15.0%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
123
Connectance
0.150
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

10 320 distinct species · 646 039 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

646 039 obs · 105 cellules
Obs. / cellule
≥ 62 280
9 878–62 279
5 555–9 877
3 785–5 554
< 3 785

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

Climate

Mean T°

4,5°C

Annual rain

766mm

Warmest m°

19,5°C

Coldest m°

-8,1°C

Elevation: 149 m on average (min -34 m, max 433 m)

Bioclimatic detailsExpert
Annual mean temp.
4,5°C
Annual rain
766mm
Warmest month
19,5°C
Coldest month
-8,1°C
Mean alt.
149m
Min
-34m
Max
433m
Std. dev.
110m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(73 %)Cold

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

Soil & lithology

pH H₂O

4,7

Org. C

132,4g/kg

Clay

13,9%

Sand

52,7%

Silt

33,4%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,6
Org. C
195,0g/kg
Clay
13,6%
Sand
52,8%
Silt
33,5%
5–15 cm
pH H₂O
4,6
Org. C
151,1g/kg
Clay
13,3%
Sand
52,6%
Silt
34,2%
15–30 cm
pH H₂O
4,9
Org. C
51,2g/kg
Clay
14,7%
Sand
52,7%
Silt
32,6%

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

Land cover

Forest67.3%
Crops2.1%
Built-up0.1%
Bare soil0.3%
Other (grassland, water…)30.2%

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

Hydrology4 basins · 50 lakes · 27 rivers

Hydrology metrics for this exact territory

Stream length here

224,2km

Lake surface here

209,16km²

Basins crossed

4

Max stream order

4

Max drainage

15 216km²

Discharge in basins

28,0m³/s

Mean precip.

654mm/an

Mean T°

3,2°C

Moisture idx

0,17

Max snow

51%

Mean runoff

294mm/an

Mean elev. (basins)

189m

Watersheds crossing here

Lakes (50, top by area)

41 more lakes

Rivers / streams (27, ord ≥ 4)

15 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

6,3%

Pesticides

3,3kg/km²

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

Protected areas100

IUCN Ia · 52IUCN Not Reported · 22IUCN IV · 13IUCN Not Assigned · 5IUCN Ib · 3IUCN III · 3IUCN V · 1IUCN Not Applicable · 1🌊 Marine · 27📍 Point sites · 3

Agön-Kråkön

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2011

46 km²

Agön-Kråkön

IUCN Not Reported

Special Protection Area (Birds Directive) · 2002

46 km²

Hornslandet

IUCN IV

Nature conservation agreement · 2012

17 km²

Complete list

+ 40 protected areas (top 60 shown)

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