Ontologia

City · JPN

Iiyama

Japan

DfaCold, no dry season, hot summer(62 %)

Species observed

921

Observations

2 820

Area

199,3km²

Ecological tissue

Sample of 34 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 Iiyama : 25 espèces reliées par 38 interactions GloBI sur 6 types (connectance 6.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
38
Connectance
0.068
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

921 distinct species · 2 820 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 820 obs · 6 cellules
Obs. / cellule
≥ 751
751–750
616–750
565–615
< 565

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

Climate

Mean T°

10,8°C

Annual rain

2 141mm

Warmest m°

27,2°C

Coldest m°

-6,3°C

Elevation: 562 m on average (min 310 m, max 1 473 m)

Bioclimatic detailsExpert
Annual mean temp.
10,8°C
Annual rain
2 141mm
Warmest month
27,2°C
Coldest month
-6,3°C
Mean alt.
562m
Min
310m
Max
1 473m
Std. dev.
208m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(62 %)Cold

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

Soil & lithology

pH H₂O

5,1

Org. C

72,3g/kg

Clay

24,5%

Sand

42,3%

Silt

33,2%

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
108,4g/kg
Clay
24,3%
Sand
42,2%
Silt
33,6%
5–15 cm
pH H₂O
5,1
Org. C
68,9g/kg
Clay
25,2%
Sand
41,8%
Silt
33,0%
15–30 cm
pH H₂O
5,1
Org. C
39,6g/kg
Clay
24,1%
Sand
42,9%
Silt
33,1%

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

Land cover

Forest57.1%
Crops9.0%
Built-up1.1%
Bare soil1.1%
Other (grassland, water…)31.7%

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

Hydrology4 basins · 1 lakes · 16 rivers

Hydrology metrics for this exact territory

Stream length here

81,7km

Lake surface here

0,14km²

Basins crossed

4

Max stream order

6

Max drainage

8 214km²

Discharge in basins

27,0m³/s

Mean precip.

1 671mm/an

Mean T°

9,0°C

Moisture idx

0,45

Max snow

32%

Mean runoff

1 398mm/an

Mean elev. (basins)

848m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,5nW

Built-up

114,6%

Pesticides

100,6kg/km²

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

Protected areas6

IUCN IV · 4IUCN II · 1IUCN V · 1

Nagamine

IUCN IV

Prefectural Wildlife Protection Area · 2021

15 km²

Kosugeyama

IUCN V

Local Environment Conservation Area(Nagano) · 1979

5 km²

Nonomi

IUCN IV

Prefectural Wildlife Protection Area · 2005

4 km²

Hokuryuko

IUCN IV

Prefectural Wildlife Protection Area · 2014

4 km²

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