Ontologia

Town · JPN

Oketo

Japan

DfbCold, no dry season, warm summer(100 %)

Species observed

661

Observations

1 876

Area

510,2km²

Ecological tissue

Sample of 32 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 Oketo : 24 espèces reliées par 38 interactions GloBI sur 6 types (connectance 7.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
38
Connectance
0.077
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

661 distinct species · 1 876 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 876 obs · 14 cellules
Obs. / cellule
≥ 528
370–527
95–369
66–94
< 66

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

Climate

Mean T°

4,3°C

Annual rain

1 251mm

Warmest m°

22,0°C

Coldest m°

-15,2°C

Elevation: 555 m on average (min 189 m, max 1 195 m)

Bioclimatic detailsExpert
Annual mean temp.
4,3°C
Annual rain
1 251mm
Warmest month
22,0°C
Coldest month
-15,2°C
Mean alt.
555m
Min
189m
Max
1 195m
Std. dev.
207m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

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

Soil & lithology

pH H₂O

5,2

Org. C

67,4g/kg

Clay

18,9%

Sand

46,0%

Silt

35,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
91,9g/kg
Clay
19,0%
Sand
46,0%
Silt
35,0%
5–15 cm
pH H₂O
5,2
Org. C
64,3g/kg
Clay
18,1%
Sand
46,3%
Silt
35,6%
15–30 cm
pH H₂O
5,3
Org. C
46,1g/kg
Clay
19,4%
Sand
45,6%
Silt
35,0%

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

Land cover

Forest84.9%
Crops6.8%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)8.1%

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

Hydrology2 basins · 1 lakes · 18 rivers

Hydrology metrics for this exact territory

Stream length here

141,5km

Lake surface here

1,89km²

Basins crossed

2

Max stream order

4

Max drainage

2 843km²

Discharge in basins

8,6m³/s

Mean precip.

1 062mm/an

Mean T°

4,6°C

Moisture idx

0,33

Max snow

39%

Mean runoff

558mm/an

Mean elev. (basins)

397m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (18, ord ≥ 4)

6 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

14,8%

Pesticides

106,7kg/km²

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

Protected areas7

IUCN IV · 6IUCN V · 1

Oketo katsuyama

IUCN IV

Academic Nature Protection Area(Hokkaido) · 2005

5 km²

Kanokozawa

IUCN IV

Prefectural Wildlife Protection Area · 2022

4 km²

Minamigaoka kouen

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1973

0 km²

Complete list

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