Ontologia

City · JPN

Akita

Japan

CfaTemperate, no dry season, hot summer(64 %)

Species observed

3 432

Observations

22 255

Area

970,7km²

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 Akita : 26 espèces reliées par 60 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
60
Connectance
0.101
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

3 432 distinct species · 22 255 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 255 obs · 29 cellules
Obs. / cellule
≥ 5 609
2 104–5 608
723–2 103
289–722
< 289

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

Climate

Mean T°

11,0°C

Annual rain

2 600mm

Warmest m°

26,3°C

Coldest m°

-4,9°C

Elevation: 183 m on average (min -15 m, max 900 m)

Bioclimatic detailsExpert
Annual mean temp.
11,0°C
Annual rain
2 600mm
Warmest month
26,3°C
Coldest month
-4,9°C
Mean alt.
183m
Min
-15m
Max
900m
Std. dev.
225m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(64 %)Temperate

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

Soil & lithology

pH H₂O

5,0

Org. C

66,3g/kg

Clay

30,0%

Sand

32,2%

Silt

37,8%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
93,7g/kg
Clay
30,4%
Sand
31,2%
Silt
38,4%
5–15 cm
pH H₂O
5,0
Org. C
67,7g/kg
Clay
29,8%
Sand
31,9%
Silt
38,4%
15–30 cm
pH H₂O
5,0
Org. C
37,4g/kg
Clay
29,7%
Sand
33,7%
Silt
36,6%

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

Land cover

Forest73.5%
Crops6.8%
Built-up2.5%
Bare soil0.4%
Other (grassland, water…)16.8%

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

Hydrology9 basins · 4 lakes · 56 rivers

Hydrology metrics for this exact territory

Stream length here

379,5km

Lake surface here

1,19km²

Basins crossed

9

Max stream order

5

Max drainage

4 385km²

Discharge in basins

348,8m³/s

Mean precip.

1 676mm/an

Mean T°

10,2°C

Moisture idx

0,50

Max snow

38%

Mean runoff

1 250mm/an

Mean elev. (basins)

178m

Rivers / streams (56, ord ≥ 4)

44 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

1,2nW

Built-up

249,9%

Pesticides

99,8kg/km²

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

Protected areas23

IUCN IV · 18IUCN V · 3IUCN VI · 1IUCN Not Applicable · 1🌊 Marine · 2

Taihe zan

IUCN V

Prefectural Natural Park · 2005

120 km²

Nibetsu

IUCN IV

Prefectural Wildlife Protection Area · 2017

33 km²

Araya

IUCN IV

Prefectural Wildlife Protection Area · 2012

24 km²

Complete list

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