Ontologia

Subprefecture · JPN

Ōshima

Japan

CfaTemperate, no dry season, hot summer(100 %)

Species observed

707

Observations

2 678

Area

143km²

Ecological tissue

Sample of 39 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 Ōshima : 36 espèces reliées par 31 interactions GloBI sur 4 types (connectance 4.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
31
Connectance
0.042
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

707 distinct species · 2 678 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 678 obs · 3 cellules
Obs. / cellule
≥ 948
948–947
948–947
946–947
< 946

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

Climate

Mean T°

16,4°C

Annual rain

2 892mm

Warmest m°

25,6°C

Coldest m°

6,6°C

Elevation: 184 m on average (min -483 m, max 605 m)

Bioclimatic detailsExpert
Annual mean temp.
16,4°C
Annual rain
2 892mm
Warmest month
25,6°C
Coldest month
6,6°C
Mean alt.
184m
Min
-483m
Max
605m
Std. dev.
173m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Hydrology1 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

1

Max drainage

264km²

Discharge in basins

1,9m³/s

Mean precip.

2 534mm/an

Mean T°

15,6°C

Moisture idx

0,67

Max snow

3%

Mean runoff

1 131mm/an

Mean elev. (basins)

198m

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

Protected areas5

IUCN IV · 3IUCN V · 1IUCN VI · 1🌊 Marine · 5

Niijima

IUCN IV

Prefectural Wildlife Protection Area · 2011

119 km²

Tadanaejima

IUCN IV

National Wildlife Protection Area · 2010

6 km²

Oshima senzu

IUCN IV

Prefectural Wildlife Protection Area · 2005

4 km²

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