Ontologia

City · JPN

Ryūgasaki

Japan

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

Species observed

421

Observations

1 425

Area

75,9km²

Ecological tissue

Sample of 39 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 Ryūgasaki : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
71
Connectance
0.087
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

421 distinct species · 1 425 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 425 obs · 3 cellules
Obs. / cellule
≥ 1 101
1 101–1 100
1 101–1 100
179–1 100
< 179

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

Climate

Mean T°

15,4°C

Annual rain

1 345mm

Warmest m°

30,0°C

Coldest m°

-0,4°C

Elevation: 9 m on average (min 1 m, max 25 m)

Bioclimatic detailsExpert
Annual mean temp.
15,4°C
Annual rain
1 345mm
Warmest month
30,0°C
Coldest month
-0,4°C
Mean alt.
9m
Min
1m
Max
25m
Std. dev.
7m
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

41,8g/kg

Clay

20,2%

Sand

46,8%

Silt

33,0%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
60,6g/kg
Clay
19,7%
Sand
46,4%
Silt
34,0%
5–15 cm
pH H₂O
5,9
Org. C
39,5g/kg
Clay
19,9%
Sand
46,5%
Silt
33,6%
15–30 cm
pH H₂O
5,9
Org. C
25,4g/kg
Clay
21,0%
Sand
47,4%
Silt
31,6%

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

Land cover

Forest15.3%
Crops21.1%
Built-up8.8%
Bare soil1.5%
Other (grassland, water…)53.4%

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

Hydrology3 basins · 1 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

16,0km

Lake surface here

1,29km²

Basins crossed

3

Max stream order

2

Max drainage

13 790km²

Discharge in basins

11,5m³/s

Mean precip.

1 396mm/an

Mean T°

14,6°C

Moisture idx

0,29

Max snow

2%

Mean runoff

589mm/an

Mean elev. (basins)

22m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

7hab/km²

Night light

5,0nW

Built-up

879,5%

Pesticides

88,0kg/km²

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

Protected areas6

IUCN IV · 3IUCN V · 3

Ryugasaki

IUCN IV

Prefectural Wildlife Protection Area · 2023

14 km²

Ushikunuma

IUCN IV

Prefectural Wildlife Protection Area · 2017

13 km²

Kami nemoto

IUCN V

Green Space Environment Conservation Area(Ibaraki) · 1994

0 km²

Nakanuma

IUCN V

Prefectural Nature Conservation Area · 1974

0 km²

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