Ontologia

Ruisseau· 5 segments

入間川

Crosses 7 administrative regions : Hannō, Hidaka, Iruma, Kawagoe, Kawajima +2

ruisseau

Total length

81km

Max discharge

5,3m³/s

Max Strahler

3

Segments matched

5

River geography7 admin regions · 0 communes

Parent watershed

hybas-4080585020315 km²

7 administrative regions crossed (GADM L2)

  • Hannō
    Saitama · Japan
    28.5 km
    in this dpt
  • Sayama
    Saitama · Japan
    8.7 km
    in this dpt
  • Kawagoe
    Saitama · Japan
    8.2 km
    in this dpt
  • Iruma
    Saitama · Japan
    1.3 km
    in this dpt
  • Kawajima
    Saitama · Japan
    0.0 km
    in this dpt
  • Sakado
    Saitama · Japan
    0.0 km
    in this dpt
  • Hidaka
    Saitama · Japan
    0.0 km
    in this dpt

5 intersecting protected areas

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

419 distinct species · 1 199 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 入間川 : 29 espèces reliées par 24 interactions GloBI sur 5 types (connectance 4.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
24
Connectance
0.048
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

81km

Max discharge

5,3m³/s

Max Strahler

3

Segments matched

5

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