Ruisseau· 2 segments
寛政川
Crosses 2 administrative regions : Ibaraki, Water body
Total length
9km
Max discharge
0,6m³/s
Max Strahler
2
Segments matched
2
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- IbarakiIbaraki · Japan6.5 kmin this dpt
- Water bodyIbaraki · Japan0.0 kmin this dpt
5 intersecting protected areas
Oarai
IUCN VPrefectural Natural Park
Hinuma
IUCN IVNational Wildlife Protection Area
Hinuma
IUCN IVWetland of International Importance (Ramsar Site)
Obata jouato
IUCN VGreen Space Environment Conservation Area(Ibaraki)
Yazure
IUCN VGreen Space Environment Conservation Area(Ibaraki)
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
181 distinct species · 244 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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).
Indicateurs du tissu écologique
Tissu écologique de 寛政川 : 33 espèces reliées par 28 interactions GloBI sur 4 types (connectance 4.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
9km
Max discharge
0,6m³/s
Max Strahler
2
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.