Ontologia

Rivière· 47 segments

夕張川

Crosses 11 administrative regions : Abira, Asahikawa, Biei, Chitose, Ebetsu +6

rivière

Total length

131km

Max discharge

38,8m³/s

Max Strahler

4

Segments matched

47

River geography11 admin regions · 0 communes

Parent watershed

hybas-40803432601167 km²

11 administrative regions crossed (GADM L2)

  • Yūbari
    Hokkaido · Japan
    67.1 km
    in this dpt
  • Yuni
    Hokkaido · Japan
    32.6 km
    in this dpt
  • Naganuma
    Hokkaido · Japan
    8.9 km
    in this dpt
  • Ebetsu
    Hokkaido · Japan
    4.3 km
    in this dpt
  • Kuriyama
    Hokkaido · Japan
    3.8 km
    in this dpt
  • Nanporo
    Hokkaido · Japan
    2.5 km
    in this dpt
  • Biei
    Hokkaido · Japan
    1.9 km
    in this dpt
  • Abira
    Hokkaido · Japan
    0.6 km
    in this dpt
  • Chitose
    Hokkaido · Japan
    0.5 km
    in this dpt
  • Iwamizawa
    Hokkaido · Japan
    0.0 km
    in this dpt
  • Asahikawa
    Hokkaido · Japan
    0.0 km
    in this dpt

8 intersecting protected areas

1 page = 1 named river (aggregation of 47 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

274 distinct species · 419 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 29 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 夕張川 : 23 espèces reliées par 26 interactions GloBI sur 5 types (connectance 6.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
26
Connectance
0.064
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

131km

Max discharge

38,8m³/s

Max Strahler

4

Segments matched

47

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