Ontologia

Town · JPN

Atsuma

Japan

DfbCold, no dry season, warm summer(99 %)

Species observed

288

Observations

1 162

Area

408km²

Ecological tissue

Sample of 32 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 Atsuma : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
36
Connectance
0.068
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

288 distinct species · 1 162 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 162 obs · 12 cellules
Obs. / cellule
≥ 696
342–695
22–341
15–21
< 15

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

Climate

Mean T°

7,2°C

Annual rain

1 593mm

Warmest m°

22,2°C

Coldest m°

-9,2°C

Elevation: 136 m on average (min -11 m, max 453 m)

Bioclimatic detailsExpert
Annual mean temp.
7,2°C
Annual rain
1 593mm
Warmest month
22,2°C
Coldest month
-9,2°C
Mean alt.
136m
Min
-11m
Max
453m
Std. dev.
102m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(99 %)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

57,0g/kg

Clay

20,9%

Sand

46,9%

Silt

32,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
81,0g/kg
Clay
21,2%
Sand
46,4%
Silt
32,4%
5–15 cm
pH H₂O
5,4
Org. C
53,3g/kg
Clay
20,8%
Sand
46,9%
Silt
32,3%
15–30 cm
pH H₂O
5,4
Org. C
36,6g/kg
Clay
20,6%
Sand
47,5%
Silt
31,9%

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

Land cover

Forest62.1%
Crops16.3%
Built-up0.3%
Bare soil3.6%
Other (grassland, water…)17.6%

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

Hydrology3 basins · 1 lakes · 25 rivers

Hydrology metrics for this exact territory

Stream length here

146,4km

Lake surface here

0,70km²

Basins crossed

3

Max stream order

3

Max drainage

6 362km²

Discharge in basins

0,9m³/s

Mean precip.

1 244mm/an

Mean T°

7,1°C

Moisture idx

0,43

Max snow

41%

Mean runoff

884mm/an

Mean elev. (basins)

237m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (25, ord ≥ 4)

13 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

33,2%

Pesticides

102,8kg/km²

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

Protected areas6

IUCN V · 4IUCN IV · 2

Azuma damu

IUCN V

Natural Landscape Protection Area(Hokkaido) · 1973

8 km²

Atsuma

IUCN IV

Prefectural Wildlife Protection Area · 2005

8 km²

Mukawa

IUCN IV

Prefectural Wildlife Protection Area · 2022

4 km²

Ueno matsunonuma

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1973

0 km²

Sakuraoka

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1973

0 km²

Nobuto

IUCN V

Environmental Green Space Protection Area(Hokkaido) · 1975

0 km²

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