Ontologia

Town · JPN

Karuizawa

Japan

DfaCold, no dry season, hot summer(52 %)

Species observed

1 320

Observations

35 421

Area

144,4km²

Ecological tissue

Sample of 36 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 Karuizawa : 27 espèces reliées par 65 interactions GloBI sur 3 types (connectance 8.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
65
Connectance
0.083
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

1 320 distinct species · 35 421 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

35 421 obs · 3 cellules
Obs. / cellule
≥ 17 431
17 431–17 430
17 431–17 430
12 243–17 430
< 12 243

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

Climate

Mean T°

8,6°C

Annual rain

1 435mm

Warmest m°

24,3°C

Coldest m°

-9,4°C

Elevation: 1 131 m on average (min 863 m, max 2 299 m)

Bioclimatic detailsExpert
Annual mean temp.
8,6°C
Annual rain
1 435mm
Warmest month
24,3°C
Coldest month
-9,4°C
Mean alt.
1 131m
Min
863m
Max
2 299m
Std. dev.
234m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(52 %)Cold

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

55,7g/kg

Clay

28,4%

Sand

36,5%

Silt

35,1%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
85,2g/kg
Clay
28,3%
Sand
36,5%
Silt
35,2%
5–15 cm
pH H₂O
5,5
Org. C
52,0g/kg
Clay
28,4%
Sand
36,0%
Silt
35,7%
15–30 cm
pH H₂O
5,5
Org. C
29,8g/kg
Clay
28,5%
Sand
36,9%
Silt
34,6%

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

Land cover

Forest66.0%
Crops7.5%
Built-up1.9%
Bare soil0.4%
Other (grassland, water…)24.1%

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

Hydrology3 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

38,8km

Basins crossed

3

Max stream order

3

Max drainage

1 784km²

Discharge in basins

3,6m³/s

Mean precip.

1 454mm/an

Mean T°

7,9°C

Moisture idx

0,35

Max snow

14%

Mean runoff

849mm/an

Mean elev. (basins)

1 141m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,1nW

Built-up

188,5%

Pesticides

99,5kg/km²

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

Protected areas5

IUCN IV · 3IUCN II · 1IUCN V · 1

Asama

IUCN IV

National Wildlife Protection Area · 2021

286 km²

Asamayama

IUCN IV

Biocenosis Protected Forest · 2018

19 km²

Usuiko

IUCN IV

Prefectural Wildlife Protection Area · 2023

15 km²

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