Ontologia

City · JPN

Hannan

Japan

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

Species observed

403

Observations

1 566

Area

39,4km²

Ecological tissue

Sample of 28 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 Hannan : 24 espèces reliées par 40 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
40
Connectance
0.086
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

403 distinct species · 1 566 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 566 obs · 3 cellules
Obs. / cellule
≥ 952
952–951
952–951
437–951
< 437

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

Climate

Mean T°

16,2°C

Annual rain

1 568mm

Warmest m°

29,7°C

Coldest m°

2,0°C

Elevation: 120 m on average (min -6 m, max 316 m)

Bioclimatic detailsExpert
Annual mean temp.
16,2°C
Annual rain
1 568mm
Warmest month
29,7°C
Coldest month
2,0°C
Mean alt.
120m
Min
-6m
Max
316m
Std. dev.
94m
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

31,1g/kg

Clay

30,0%

Sand

33,6%

Silt

36,5%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
56,1g/kg
Clay
28,7%
Sand
34,4%
Silt
36,9%
5–15 cm
pH H₂O
5,7
Org. C
23,6g/kg
Clay
29,1%
Sand
34,1%
Silt
36,8%
15–30 cm
pH H₂O
5,7
Org. C
13,4g/kg
Clay
32,1%
Sand
32,1%
Silt
35,8%

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

Land cover

Forest55.9%
Crops2.6%
Built-up8.5%
Bare soil0.2%
Other (grassland, water…)32.8%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

13,8km

Basins crossed

2

Max stream order

2

Max drainage

1 724km²

Discharge in basins

0,1m³/s

Mean precip.

1 636mm/an

Mean T°

15,1°C

Moisture idx

0,38

Max snow

14%

Mean runoff

873mm/an

Mean elev. (basins)

117m

Watersheds crossing here

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

Human pressure

Pop. density

10hab/km²

Night light

4,6nW

Built-up

849,0%

Pesticides

83,7kg/km²

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

Protected areas7

IUCN IV · 3IUCN V · 2IUCN VI · 1IUCN Not Applicable · 1🌊 Marine · 3

Kisen kogen

IUCN IV

Prefectural Wildlife Protection Area · 2020

3 km²

Kisen kogen

IUCN IV

Prefectural Wildlife Protection Area · 2014

3 km²

Ono jinja

IUCN V

Special green space conservation districts · 1989

0 km²

Complete list

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