Ontologia

Rivière· 13 segments

北海幹線用水路

Crosses 11 administrative regions : Akabira, Bibai, Iwamizawa, Kuriyama, Naganuma +6

rivière

Total length

80km

Max discharge

88m³/s

Max Strahler

5

Segments matched

13

River geography11 admin regions · 0 communes

Parent watershed

hybas-40803429001736 km²

11 administrative regions crossed (GADM L2)

  • Iwamizawa
    Hokkaido · Japan
    20.9 km
    in this dpt
  • Bibai
    Hokkaido · Japan
    9.0 km
    in this dpt
  • Sunagawa
    Hokkaido · Japan
    6.4 km
    in this dpt
  • Nanporo
    Hokkaido · Japan
    5.5 km
    in this dpt
  • Akabira
    Hokkaido · Japan
    4.0 km
    in this dpt
  • Naie
    Hokkaido · Japan
    2.2 km
    in this dpt
  • Shintotsukawa
    Hokkaido · Japan
    0.6 km
    in this dpt
  • Naganuma
    Hokkaido · Japan
    0.0 km
    in this dpt
  • Kuriyama
    Hokkaido · Japan
    0.0 km
    in this dpt
  • Takikawa
    Hokkaido · Japan
    0.0 km
    in this dpt
  • Urausu
    Hokkaido · Japan
    0.0 km
    in this dpt

3 intersecting protected areas

  • Iwamizawa jinja

    IUCN V

    Environmental Green Space Protection Area(Hokkaido)

  • Kurisawa jinja

    IUCN V

    Environmental Green Space Protection Area(Hokkaido)

  • Shibun

    IUCN IV

    Academic Nature Protection Area(Hokkaido)

1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

58 distinct species · 188 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 19 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 北海幹線用水路 : 19 espèces reliées par 13 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2).

Espèces affichées
19
Interactions affichées
13
Connectance
0.076
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

80km

Max discharge

88,0m³/s

Max Strahler

5

Segments matched

13

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