Ontologia

Rivière· 2 segments

女沼川

Crosses 3 administrative regions : Goka, Koga, Sakai

rivière

Total length

11km

Max discharge

131m³/s

Max Strahler

6

Segments matched

2

River geography3 admin regions · 0 communes

Parent watershed

hybas-4080587490585 km²

3 administrative regions crossed (GADM L2)

  • Koga
    Ibaraki · Japan
    5.5 km
    in this dpt
  • Goka
    Ibaraki · Japan
    2.7 km
    in this dpt
  • Sakai
    Ibaraki · Japan
    0.0 km
    in this dpt

1 intersecting protected areas

  • Sowa

    IUCN IV

    Prefectural Wildlife Protection Area

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

135 distinct species · 399 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 女沼川 : 26 espèces reliées par 66 interactions GloBI sur 5 types (connectance 9.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
66
Connectance
0.094
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

11km

Max discharge

131,0m³/s

Max Strahler

6

Segments matched

2

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