Ontologia

City · JPN

Jōetsu

Japan

CfaTemperate, no dry season, hot summer(80 %)

Species observed

1 112

Observations

4 597

Area

993,1km²

Ecological tissue

Sample of 29 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 Jōetsu : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 2 types (connectance 13.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
62
Connectance
0.133
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

1 112 distinct species · 4 597 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 597 obs · 32 cellules
Obs. / cellule
≥ 833
410–832
151–409
93–150
< 93

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

Climate

Mean T°

12,6°C

Annual rain

2 594mm

Warmest m°

28,5°C

Coldest m°

-3,1°C

Elevation: 246 m on average (min -15 m, max 1 202 m)

Bioclimatic detailsExpert
Annual mean temp.
12,6°C
Annual rain
2 594mm
Warmest month
28,5°C
Coldest month
-3,1°C
Mean alt.
246m
Min
-15m
Max
1 202m
Std. dev.
252m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(80 %)Temperate

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

Soil & lithology

pH H₂O

5,2

Org. C

73,8g/kg

Clay

28,3%

Sand

34,0%

Silt

37,6%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
107,9g/kg
Clay
27,6%
Sand
34,3%
Silt
38,1%
5–15 cm
pH H₂O
5,2
Org. C
69,5g/kg
Clay
28,6%
Sand
33,7%
Silt
37,7%
15–30 cm
pH H₂O
5,2
Org. C
44,0g/kg
Clay
28,8%
Sand
34,1%
Silt
37,1%

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

Land cover

Forest62.6%
Crops10.2%
Built-up2.0%
Bare soil1.0%
Other (grassland, water…)24.3%

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

Hydrology5 basins · 7 lakes · 68 rivers

Hydrology metrics for this exact territory

Stream length here

426,9km

Lake surface here

2,08km²

Basins crossed

5

Max stream order

4

Max drainage

8 214km²

Discharge in basins

21,5m³/s

Mean precip.

2 022mm/an

Mean T°

11,2°C

Moisture idx

0,53

Max snow

32%

Mean runoff

1 748mm/an

Mean elev. (basins)

416m

Watersheds crossing here

Lakes (7, top by area)

Rivers / streams (68, ord ≥ 4)

56 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,9nW

Built-up

196,0%

Pesticides

93,3kg/km²

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

Protected areas15

IUCN IV · 9IUCN V · 5IUCN VI · 1🌊 Marine · 5

Kubiki

IUCN V

Prefectural Natural Park · 1959

80 km²

Hanareyama

IUCN IV

Prefectural Wildlife Protection Area · 2017

27 km²

Yoneyama

IUCN IV

Prefectural Wildlife Protection Area · 2022

26 km²

Complete list

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