Ontologia

City · JPN

Iwamizawa

Japan

DfbCold, no dry season, warm summer(100 %)

Species observed

283

Observations

1 395

Area

483,1km²

Ecological tissue

Sample of 38 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 Iwamizawa : 32 espèces reliées par 68 interactions GloBI sur 6 types (connectance 7.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
68
Connectance
0.079
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

283 distinct species · 1 395 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 395 obs · 14 cellules
Obs. / cellule
≥ 362
335–361
117–334
30–116
< 30

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

Climate

Mean T°

7,5°C

Annual rain

1 692mm

Warmest m°

24,2°C

Coldest m°

-11,7°C

Elevation: 112 m on average (min 7 m, max 690 m)

Bioclimatic detailsExpert
Annual mean temp.
7,5°C
Annual rain
1 692mm
Warmest month
24,2°C
Coldest month
-11,7°C
Mean alt.
112m
Min
7m
Max
690m
Std. dev.
151m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

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

Soil & lithology

pH H₂O

5,3

Org. C

64,3g/kg

Clay

25,3%

Sand

39,9%

Silt

34,8%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
86,6g/kg
Clay
26,0%
Sand
39,2%
Silt
34,8%
5–15 cm
pH H₂O
5,3
Org. C
62,0g/kg
Clay
25,1%
Sand
39,9%
Silt
35,0%
15–30 cm
pH H₂O
5,3
Org. C
44,2g/kg
Clay
24,8%
Sand
40,6%
Silt
34,7%

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

Land cover

Forest46.0%
Crops32.7%
Built-up1.6%
Bare soil0.5%
Other (grassland, water…)19.1%

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

Hydrology2 basins · 3 lakes · 29 rivers

Hydrology metrics for this exact territory

Stream length here

176,2km

Lake surface here

1,05km²

Basins crossed

2

Max stream order

6

Max drainage

10 374km²

Discharge in basins

99,5m³/s

Mean precip.

1 211mm/an

Mean T°

6,7°C

Moisture idx

0,36

Max snow

41%

Mean runoff

1 124mm/an

Mean elev. (basins)

167m

Watersheds crossing here

Lakes (3, top by area)

Rivers / streams (29, ord ≥ 4)

17 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

1,5nW

Built-up

162,9%

Pesticides

89,8kg/km²

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

Protected areas9

IUCN IV · 4IUCN V · 4IUCN Not Reported · 1

Tonebetsu

IUCN IV

Prefectural Wildlife Protection Area · 2004

4 km²

Miyajimanuma

IUCN IV

National Wildlife Protection Area · 2022

0 km²

Miyajima-numa

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2002

0 km²

Toyosato

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1974

0 km²

Iwamizawa jinja

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1974

0 km²

Kurisawa jinja

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1975

0 km²

Complete list

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