Ontologia

City · JPN

Nagano

Japan

DfaCold, no dry season, hot summer(45 %)

Species observed

2 660

Observations

37 071

Area

738,8km²

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 Nagano : 21 espèces reliées par 49 interactions GloBI sur 6 types (connectance 10.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
49
Connectance
0.105
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

2 660 distinct species · 37 071 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

37 071 obs · 19 cellules
Obs. / cellule
≥ 8 110
7 636–8 109
1 808–7 635
1 366–1 807
< 1 366

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

Climate

Mean T°

9,8°C

Annual rain

1 728mm

Warmest m°

26,4°C

Coldest m°

-7,8°C

Elevation: 813 m on average (min 331 m, max 1 943 m)

Bioclimatic detailsExpert
Annual mean temp.
9,8°C
Annual rain
1 728mm
Warmest month
26,4°C
Coldest month
-7,8°C
Mean alt.
813m
Min
331m
Max
1 943m
Std. dev.
372m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(45 %)Cold

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

Soil & lithology

pH H₂O

5,4

Org. C

64,0g/kg

Clay

25,9%

Sand

42,0%

Silt

32,0%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
97,2g/kg
Clay
25,3%
Sand
42,1%
Silt
32,6%
5–15 cm
pH H₂O
5,4
Org. C
61,3g/kg
Clay
25,9%
Sand
41,9%
Silt
32,2%
15–30 cm
pH H₂O
5,4
Org. C
33,6g/kg
Clay
26,6%
Sand
42,1%
Silt
31,2%

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

Land cover

Forest66.9%
Crops5.3%
Built-up4.0%
Bare soil0.3%
Other (grassland, water…)23.6%

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

Hydrology7 basins · 1 lakes · 51 rivers

Hydrology metrics for this exact territory

Stream length here

270,2km

Lake surface here

0,18km²

Basins crossed

7

Max stream order

6

Max drainage

8 214km²

Discharge in basins

197,9m³/s

Mean precip.

1 408mm/an

Mean T°

9,1°C

Moisture idx

0,32

Max snow

38%

Mean runoff

1 353mm/an

Mean elev. (basins)

892m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (51, ord ≥ 4)

39 more river segments

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

Human pressure

Pop. density

3hab/km²

Night light

1,6nW

Built-up

394,7%

Pesticides

91,3kg/km²

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

Protected areas20

IUCN IV · 12IUCN V · 5IUCN II · 2IUCN Not Applicable · 1

Azuma

IUCN IV

Prefectural Wildlife Protection Area · 2017

58 km²

Togakushiyama

IUCN IV

Prefectural Wildlife Protection Area · 2023

47 km²

Okususobana

IUCN IV

Prefectural Wildlife Protection Area · 2014

34 km²

Complete list

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