Ontologia

City · JPN

Onomichi

Japan

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

Species observed

318

Observations

3 792

Area

293,4km²

Ecological tissue

Sample of 43 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 Onomichi : 35 espèces reliées par 62 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
62
Connectance
0.069
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

318 distinct species · 3 792 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 792 obs · 5 cellules
Obs. / cellule
≥ 3 366
3 366–3 365
319–3 365
64–318
< 64

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

Climate

Mean T°

16,3°C

Annual rain

1 360mm

Warmest m°

30,1°C

Coldest m°

1,7°C

Elevation: 130 m on average (min -19 m, max 537 m)

Bioclimatic detailsExpert
Annual mean temp.
16,3°C
Annual rain
1 360mm
Warmest month
30,1°C
Coldest month
1,7°C
Mean alt.
130m
Min
-19m
Max
537m
Std. dev.
102m
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

5,6

Org. C

31,2g/kg

Clay

26,8%

Sand

34,5%

Silt

38,7%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
52,0g/kg
Clay
25,8%
Sand
35,3%
Silt
38,9%
5–15 cm
pH H₂O
5,6
Org. C
25,0g/kg
Clay
26,3%
Sand
34,7%
Silt
39,1%
15–30 cm
pH H₂O
5,6
Org. C
16,7g/kg
Clay
28,3%
Sand
33,6%
Silt
38,0%

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

Land cover

Forest62.3%
Crops6.3%
Built-up4.6%
Bare soil0.3%
Other (grassland, water…)26.5%

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

Hydrology1 basins · 2 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

44,9km

Lake surface here

0,26km²

Basins crossed

1

Max stream order

3

Max drainage

14 401km²

Discharge in basins

0,1m³/s

Mean precip.

1 742mm/an

Mean T°

13,6°C

Moisture idx

0,42

Max snow

11%

Mean runoff

886mm/an

Mean elev. (basins)

273m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

3hab/km²

Night light

1,4nW

Built-up

463,2%

Pesticides

92,0kg/km²

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

Protected areas15

IUCN V · 9IUCN IV · 4IUCN VI · 2🌊 Marine · 12

Matsunagawan

IUCN IV

Prefectural Wildlife Protection Area · 2018

16 km²

Ohamazaki

IUCN IV

Prefectural Wildlife Protection Area · 2017

0 km²

Complete list

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