Ontologia

Rivière· 15 segments

丹生川

Crosses 2 administrative regions : Obanazawa, Ōishida

rivière

Total length

163km

Max discharge

123,5m³/s

Max Strahler

5

Segments matched

15

River geography2 admin regions · 0 communes

Parent watershed

hybas-40804982701058 km²

2 administrative regions crossed (GADM L2)

  • Obanazawa
    Yamagata · Japan
    30.1 km
    in this dpt
  • Ōishida
    Yamagata · Japan
    5.7 km
    in this dpt

6 intersecting protected areas

1 page = 1 named river (aggregation of 15 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

72 distinct species · 81 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 丹生川 : 24 espèces reliées par 41 interactions GloBI sur 5 types (connectance 8.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
41
Connectance
0.088
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

163km

Max discharge

123,5m³/s

Max Strahler

5

Segments matched

15

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