Ontologia

City · JPN

Akaiwa

Japan

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

Species observed

630

Observations

1 136

Area

223,7km²

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 Akaiwa : 25 espèces reliées par 34 interactions GloBI sur 5 types (connectance 6.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
34
Connectance
0.064
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

630 distinct species · 1 136 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 136 obs · 8 cellules
Obs. / cellule
≥ 276
276–275
153–275
148–152
< 148

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

Climate

Mean T°

15,6°C

Annual rain

1 409mm

Warmest m°

30,5°C

Coldest m°

-0,6°C

Elevation: 156 m on average (min 21 m, max 405 m)

Bioclimatic detailsExpert
Annual mean temp.
15,6°C
Annual rain
1 409mm
Warmest month
30,5°C
Coldest month
-0,6°C
Mean alt.
156m
Min
21m
Max
405m
Std. dev.
92m
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

5,7

Org. C

31,8g/kg

Clay

28,8%

Sand

34,4%

Silt

36,8%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
48,7g/kg
Clay
27,3%
Sand
35,3%
Silt
37,3%
5–15 cm
pH H₂O
5,7
Org. C
27,5g/kg
Clay
28,3%
Sand
34,5%
Silt
37,1%
15–30 cm
pH H₂O
5,7
Org. C
19,3g/kg
Clay
30,9%
Sand
33,3%
Silt
35,9%

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

Land cover

Forest64.7%
Crops9.3%
Built-up2.8%
Bare soil0.4%
Other (grassland, water…)22.9%

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

Hydrology4 basins · 0 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

61,0km

Basins crossed

4

Max stream order

5

Max drainage

2 984km²

Discharge in basins

5,1m³/s

Mean precip.

1 591mm/an

Mean T°

12,9°C

Moisture idx

0,34

Max snow

14%

Mean runoff

851mm/an

Mean elev. (basins)

337m

Watersheds crossing here

Rivers / streams (17, ord ≥ 4)

5 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,8nW

Built-up

279,3%

Pesticides

88,3kg/km²

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

Protected areas6

IUCN V · 4IUCN IV · 2

Mitani yama

IUCN IV

Prefectural Wildlife Protection Area · 2015

11 km²

Ootakisan

IUCN V

Local Nature Protection Area(Okayama) · 1973

3 km²

Futsumi

IUCN V

Local Nature Protection Area(Okayama) · 1975

0 km²

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