Ontologia

Town · JPN

Hakodate

Japan

DfbCold, no dry season, warm summer(90 %)

Species observed

727

Observations

8 762

Area

663,1km²

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 Hakodate : 30 espèces reliées par 51 interactions GloBI sur 5 types (connectance 7.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
51
Connectance
0.072
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

727 distinct species · 8 762 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 762 obs · 20 cellules
Obs. / cellule
≥ 4 832
807–4 831
218–806
166–217
< 166

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

1 652mm

Warmest m°

21,5°C

Coldest m°

-5,7°C

Elevation: 235 m on average (min -42 m, max 983 m)

Bioclimatic detailsExpert
Annual mean temp.
7,1°C
Annual rain
1 652mm
Warmest month
21,5°C
Coldest month
-5,7°C
Mean alt.
235m
Min
-42m
Max
983m
Std. dev.
176m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(90 %)Cold

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

Soil & lithology

pH H₂O

5,0

Org. C

58,5g/kg

Clay

22,2%

Sand

43,1%

Silt

34,7%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
80,4g/kg
Clay
22,8%
Sand
42,2%
Silt
35,0%
5–15 cm
pH H₂O
5,0
Org. C
55,7g/kg
Clay
23,1%
Sand
42,6%
Silt
34,3%
15–30 cm
pH H₂O
5,0
Org. C
39,2g/kg
Clay
20,7%
Sand
44,5%
Silt
34,8%

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

Land cover

Forest69.2%
Crops4.7%
Built-up2.2%
Bare soil1.3%
Other (grassland, water…)22.5%

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

Hydrology1 basins · 1 lakes · 36 rivers

Hydrology metrics for this exact territory

Stream length here

163,7km

Lake surface here

0,20km²

Basins crossed

1

Max stream order

3

Max drainage

6 362km²

Discharge in basins

0,2m³/s

Mean precip.

1 241mm/an

Mean T°

7,2°C

Moisture idx

0,43

Max snow

28%

Mean runoff

878mm/an

Mean elev. (basins)

227m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (36, ord ≥ 4)

24 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

1,8nW

Built-up

224,4%

Pesticides

109,6kg/km²

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

Protected areas11

IUCN IV · 5IUCN V · 4IUCN VI · 2🌊 Marine · 4

Oshima tobu

IUCN VI

Coastline Marine Resource Development Area, designated sea area · 1973

315 km²

Esan

IUCN V

Prefectural Natural Park · 2007

43 km²

Sasanagare

IUCN V

Natural Landscape Protection Area(Hokkaido) · 1973

6 km²

Hakodateyama

IUCN IV

Prefectural Wildlife Protection Area · 2022

4 km²

Complete list

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