Ontologia

Ruisseau

新川

Crosses 5 administrative regions : Higashimatsuyama, Namegawa, Ogawa, Ranzan, Yorii

ruisseau

Total length

456km

Max discharge

0,7m³/s

Max Strahler

1

Segments matched

1

River geography5 admin regions · 0 communes

Parent watershed

hybas-4080582840418 km²

5 administrative regions crossed (GADM L2)

  • Namegawa
    Saitama · Japan
    4.4 km
    in this dpt
  • Ogawa
    Saitama · Japan
    4.1 km
    in this dpt
  • Ranzan
    Saitama · Japan
    3.0 km
    in this dpt
  • Yorii
    Saitama · Japan
    0.4 km
    in this dpt
  • Higashimatsuyama
    Saitama · Japan
    0.1 km
    in this dpt

4 intersecting protected areas

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

Species present

605 distinct species · 2 065 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 新川 : 26 espèces reliées par 25 interactions GloBI sur 2 types (connectance 6.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
25
Connectance
0.062
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

456km

Max discharge

0,7m³/s

Max Strahler

1

Segments matched

1

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