Ontologia

HydroLAKES lake · #172237

Ō Numa

Natural lakeJapanAsia 128 m

Surface area

9,14km²

Avg depth

11,5m

Volume

105,09km³

Shoreline

27,1km

Administrative coverage

Parent watershed

hybas-40800388406362 km² · upstream 6362 km²

2 dept-equivalent regions (GADM L2)

  • Nanae
    Hokkaido · Japan
    8.99 km²
    98.2% of lake
  • Mori
    Hokkaido · Japan
    0.16 km²
    1.8% of lake

3 intersecting protected areas

  • Onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    9.15 km² overlap

  • Onuma

    IUCN V

    Quasi National Park

    9.15 km² overlap

  • Onuma

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    9.12 km² overlap

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

316 distinct species · 2 216 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 216 obs · 1 cellules
Obs. / cellule
≥ 2 216
2 216–2 215
2 216–2 215
2 216–2 215
< 2 216

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

Ecological tissue

Sample of 35 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 Ō Numa : 26 espèces reliées par 66 interactions GloBI sur 5 types (connectance 11.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
66
Connectance
0.111
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

9,14km²

Avg depth

11,5m

Volume

105,090km³

Watershed

168km²

Shoreline

27,1km

Shore dev. idx

2,53

Residence time

270days

Elevation

128m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.