Ontologia

City · JPN

Iwakuni

Japan

CfaTemperate, no dry season, hot summer(99 %)

Species observed

2 073

Observations

11 805

Area

867km²

Ecological tissue

Sample of 23 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 Iwakuni : 19 espèces reliées par 35 interactions GloBI sur 3 types (connectance 12.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
35
Connectance
0.127
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

2 073 distinct species · 11 805 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 805 obs · 30 cellules
Obs. / cellule
≥ 3 095
2 171–3 094
138–2 170
74–137
< 74

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

2 043mm

Warmest m°

28,1°C

Coldest m°

0,3°C

Elevation: 314 m on average (min -42 m, max 1 154 m)

Bioclimatic detailsExpert
Annual mean temp.
14,9°C
Annual rain
2 043mm
Warmest month
28,1°C
Coldest month
0,3°C
Mean alt.
314m
Min
-42m
Max
1 154m
Std. dev.
206m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(99 %)Temperate

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

Soil & lithology

pH H₂O

5,1

Org. C

45,7g/kg

Clay

31,6%

Sand

34,6%

Silt

33,8%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
72,3g/kg
Clay
30,4%
Sand
35,4%
Silt
34,2%
5–15 cm
pH H₂O
5,1
Org. C
43,7g/kg
Clay
31,4%
Sand
34,5%
Silt
34,1%
15–30 cm
pH H₂O
5,2
Org. C
21,3g/kg
Clay
32,9%
Sand
34,0%
Silt
33,1%

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

Land cover

Forest85.0%
Crops2.3%
Built-up1.4%
Bare soil0.2%
Other (grassland, water…)11.1%

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

Hydrology1 basins · 2 lakes · 43 rivers

Hydrology metrics for this exact territory

Stream length here

268,7km

Lake surface here

1,37km²

Basins crossed

1

Max stream order

4

Max drainage

14 401km²

Discharge in basins

0,4m³/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)

Rivers / streams (43, ord ≥ 4)

31 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,7nW

Built-up

142,0%

Pesticides

71,1kg/km²

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

Protected areas25

IUCN IV · 16IUCN V · 7IUCN VI · 2🌊 Marine · 5

Rakan zan

IUCN V

Prefectural Natural Park · 1995

37 km²

Iwaki san

IUCN V

Prefectural Natural Park · 1991

28 km²

Complete list

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