Ontologia

City · JPN

Hirakawa

Japan

DfbCold, no dry season, warm summer(52 %)

Species observed

221

Observations

479

Area

344,1km²

Ecological tissue

Sample of 33 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 Hirakawa : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
36
Connectance
0.068
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

221 distinct species · 479 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

479 obs · 10 cellules
Obs. / cellule
≥ 195
195–194
47–194
36–46
< 36

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

Climate

Mean T°

8,2°C

Annual rain

2 280mm

Warmest m°

24,9°C

Coldest m°

-10,2°C

Elevation: 452 m on average (min 22 m, max 1 292 m)

Bioclimatic detailsExpert
Annual mean temp.
8,2°C
Annual rain
2 280mm
Warmest month
24,9°C
Coldest month
-10,2°C
Mean alt.
452m
Min
22m
Max
1 292m
Std. dev.
268m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(52 %)Cold

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

Soil & lithology

pH H₂O

5,0

Org. C

67,8g/kg

Clay

21,0%

Sand

43,7%

Silt

35,3%

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

Dominant lithology: pyGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
94,9g/kg
Clay
21,2%
Sand
42,6%
Silt
36,1%
5–15 cm
pH H₂O
5,0
Org. C
65,4g/kg
Clay
21,5%
Sand
43,1%
Silt
35,4%
15–30 cm
pH H₂O
5,0
Org. C
43,2g/kg
Clay
20,2%
Sand
45,4%
Silt
34,4%

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

Land cover

Forest75.5%
Crops5.2%
Built-up0.9%
Bare soil0.2%
Other (grassland, water…)18.1%

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

Hydrology5 basins · 1 lakes · 24 rivers

Hydrology metrics for this exact territory

Stream length here

122,0km

Lake surface here

0,31km²

Basins crossed

5

Max stream order

3

Max drainage

4 371km²

Discharge in basins

11,7m³/s

Mean precip.

1 385mm/an

Mean T°

9,2°C

Moisture idx

0,41

Max snow

34%

Mean runoff

963mm/an

Mean elev. (basins)

255m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (24, ord ≥ 4)

12 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

90,2%

Pesticides

66,1kg/km²

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

Protected areas13

IUCN IV · 7IUCN V · 4IUCN II · 1IUCN III · 1

Towada

IUCN IV

National Wildlife Protection Area · 2017

375 km²

Complete list

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