Ontologia

City · JPN

Nagaoka

Japan

CfaTemperate, no dry season, hot summer(86 %)

Species observed

795

Observations

2 538

Area

860,6km²

Ecological tissue

Sample of 33 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 Nagaoka : 29 espèces reliées par 48 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
48
Connectance
0.076
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

795 distinct species · 2 538 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 538 obs · 28 cellules
Obs. / cellule
≥ 362
220–361
119–219
76–118
< 76

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

Climate

Mean T°

12,9°C

Annual rain

2 456mm

Warmest m°

29,4°C

Coldest m°

-3,4°C

Elevation: 159 m on average (min -7 m, max 1 208 m)

Bioclimatic detailsExpert
Annual mean temp.
12,9°C
Annual rain
2 456mm
Warmest month
29,4°C
Coldest month
-3,4°C
Mean alt.
159m
Min
-7m
Max
1 208m
Std. dev.
160m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(86 %)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

69,0g/kg

Clay

26,9%

Sand

35,4%

Silt

37,7%

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
101,2g/kg
Clay
26,7%
Sand
35,3%
Silt
38,0%
5–15 cm
pH H₂O
5,2
Org. C
64,6g/kg
Clay
27,5%
Sand
34,8%
Silt
37,7%
15–30 cm
pH H₂O
5,2
Org. C
41,3g/kg
Clay
26,6%
Sand
36,1%
Silt
37,2%

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

Land cover

Forest58.5%
Crops11.4%
Built-up2.7%
Bare soil1.1%
Other (grassland, water…)26.3%

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

Hydrology7 basins · 0 lakes · 74 rivers

Hydrology metrics for this exact territory

Stream length here

354,5km

Basins crossed

7

Max stream order

6

Max drainage

10 579km²

Discharge in basins

616,6m³/s

Mean precip.

2 112mm/an

Mean T°

12,1°C

Moisture idx

0,56

Max snow

37%

Mean runoff

1 622mm/an

Mean elev. (basins)

166m

Watersheds crossing here

Rivers / streams (74, ord ≥ 4)

62 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

1,1nW

Built-up

266,0%

Pesticides

71,3kg/km²

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

Protected areas20

IUCN IV · 11IUCN V · 5IUCN Not Applicable · 2IUCN VI · 1IUCN II · 1🌊 Marine · 3

Sumon

IUCN IV

Prefectural Wildlife Protection Area · 2010

42 km²

Complete list

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