Ontologia

City · JPN

Higashihiroshima

Japan

CfaTemperate, no dry season, hot summer(100 %)

Species observed

677

Observations

4 868

Area

653,2km²

Ecological tissue

Sample of 35 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 Higashihiroshima : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 4 types (connectance 7.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
50
Connectance
0.075
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

677 distinct species · 4 868 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 868 obs · 24 cellules
Obs. / cellule
≥ 2 440
283–2 439
114–282
73–113
< 73

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

Climate

Mean T°

14,9°C

Annual rain

1 601mm

Warmest m°

28,9°C

Coldest m°

-0,3°C

Elevation: 319 m on average (min -32 m, max 684 m)

Bioclimatic detailsExpert
Annual mean temp.
14,9°C
Annual rain
1 601mm
Warmest month
28,9°C
Coldest month
-0,3°C
Mean alt.
319m
Min
-32m
Max
684m
Std. dev.
114m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,3

Org. C

40,7g/kg

Clay

28,9%

Sand

38,8%

Silt

32,3%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
64,6g/kg
Clay
28,0%
Sand
39,2%
Silt
32,7%
5–15 cm
pH H₂O
5,3
Org. C
37,4g/kg
Clay
28,9%
Sand
38,6%
Silt
32,5%
15–30 cm
pH H₂O
5,4
Org. C
20,1g/kg
Clay
29,8%
Sand
38,7%
Silt
31,5%

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

Land cover

Forest65.6%
Crops8.5%
Built-up3.0%
Bare soil0.5%
Other (grassland, water…)22.4%

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

Hydrology2 basins · 3 lakes · 34 rivers

Hydrology metrics for this exact territory

Stream length here

164,2km

Lake surface here

0,90km²

Basins crossed

2

Max stream order

4

Max drainage

14 401km²

Discharge in basins

0,8m³/s

Mean precip.

1 740mm/an

Mean T°

13,5°C

Moisture idx

0,42

Max snow

15%

Mean runoff

884mm/an

Mean elev. (basins)

280m

Watersheds crossing here

Lakes (3, top by area)

Rivers / streams (34, ord ≥ 4)

22 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

1,3nW

Built-up

302,1%

Pesticides

89,1kg/km²

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

Protected areas14

IUCN IV · 7IUCN V · 5IUCN VI · 1IUCN Not Applicable · 1🌊 Marine · 3

Nutagawa

IUCN IV

Prefectural Wildlife Protection Area · 2017

3 km²

Ryuo

IUCN IV

Prefectural Wildlife Protection Area · 2019

1 km²

Chikurinji

IUCN IV

Prefectural Wildlife Protection Area · 2015

1 km²

Complete list

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