Ontologia

City · JPN

Chikusei

Japan

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

Species observed

666

Observations

1 524

Area

199,9km²

Ecological tissue

Sample of 34 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 Chikusei : 27 espèces reliées par 55 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
55
Connectance
0.083
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

666 distinct species · 1 524 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 524 obs · 7 cellules
Obs. / cellule
≥ 331
331–330
287–330
237–286
< 237

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

Climate

Mean T°

14,7°C

Annual rain

1 298mm

Warmest m°

29,9°C

Coldest m°

-2,0°C

Elevation: 34 m on average (min 18 m, max 118 m)

Bioclimatic detailsExpert
Annual mean temp.
14,7°C
Annual rain
1 298mm
Warmest month
29,9°C
Coldest month
-2,0°C
Mean alt.
34m
Min
18m
Max
118m
Std. dev.
9m
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

5,9

Org. C

40,9g/kg

Clay

18,8%

Sand

49,0%

Silt

32,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
59,0g/kg
Clay
19,4%
Sand
47,8%
Silt
32,9%
5–15 cm
pH H₂O
5,9
Org. C
36,5g/kg
Clay
19,1%
Sand
48,8%
Silt
32,0%
15–30 cm
pH H₂O
6,0
Org. C
27,1g/kg
Clay
17,8%
Sand
50,5%
Silt
31,7%

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

Land cover

Forest11.5%
Crops23.5%
Built-up7.9%
Bare soil1.3%
Other (grassland, water…)55.8%

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

Hydrology5 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

65,1km

Basins crossed

5

Max stream order

4

Max drainage

1 999km²

Discharge in basins

5,3m³/s

Mean precip.

1 373mm/an

Mean T°

13,7°C

Moisture idx

0,26

Max snow

2%

Mean runoff

599mm/an

Mean elev. (basins)

77m

Watersheds crossing here

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

Human pressure

Pop. density

4hab/km²

Night light

2,9nW

Built-up

785,9%

Pesticides

90,0kg/km²

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

Protected areas5

IUCN IV · 4IUCN V · 1

Shimotsuma

IUCN IV

Prefectural Wildlife Protection Area · 2021

28 km²

Uenonuma

IUCN IV

Prefectural Wildlife Protection Area · 2021

21 km²

Oguri

IUCN IV

Prefectural Wildlife Protection Area · 2021

2 km²

Miyayama

IUCN IV

Prefectural Wildlife Protection Area · 2015

0 km²

Yomogida

IUCN V

Prefectural Nature Conservation Area · 1978

0 km²

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