Ontologia

Ruisseau· 10 segments

折戸川

Crosses 3 administrative regions : Mori, Nanae, Shikabe

ruisseau

Total length

49km

Max discharge

6,9m³/s

Max Strahler

3

Segments matched

10

River geography3 admin regions · 0 communes

Parent watershed

hybas-40800388406362 km²

3 administrative regions crossed (GADM L2)

  • Nanae
    Hokkaido · Japan
    10.3 km
    in this dpt
  • Shikabe
    Hokkaido · Japan
    6.6 km
    in this dpt
  • Mori
    Hokkaido · Japan
    3.7 km
    in this dpt

5 intersecting protected areas

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

114 distinct species · 473 observations

Source: GBIF Occurrence snapshot 2026-05-01.

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 折戸川 : 27 espèces reliées par 39 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
39
Connectance
0.074
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydrology (HydroRIVERS v10)

Total length

49km

Max discharge

6,9m³/s

Max Strahler

3

Segments matched

10

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.