Ontologia

Ruisseau· 5 segments

逆川

Crosses 5 administrative regions : Hitachiōmiya, Ibaraki, Mashiko, Mito, Motegi

ruisseau

Total length

192km

Max discharge

2,3m³/s

Max Strahler

3

Segments matched

5

River geography5 admin regions · 0 communes

Parent watershed

hybas-4080571600804 km²

5 administrative regions crossed (GADM L2)

  • Motegi
    Tochigi · Japan
    18.5 km
    in this dpt
  • Mito
    Ibaraki · Japan
    4.4 km
    in this dpt
  • Ibaraki
    Ibaraki · Japan
    2.3 km
    in this dpt
  • Hitachiōmiya
    Ibaraki · Japan
    0.0 km
    in this dpt
  • Mashiko
    Tochigi · Japan
    0.0 km
    in this dpt

7 intersecting protected areas

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

Species present

49 distinct species · 57 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 6 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 逆川 : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 26.7%, filtre Serrano α=0.2).

Espèces affichées
6
Interactions affichées
4
Connectance
0.267
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

192km

Max discharge

2,3m³/s

Max Strahler

3

Segments matched

5

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