Ruisseau· 3 segments
園部川
Crosses 4 administrative regions : Ishioka, Namegata, Omitama, Water body
Total length
46km
Max discharge
1,6m³/s
Max Strahler
2
Segments matched
3
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- OmitamaIbaraki · Japan12.0 kmin this dpt
- IshiokaIbaraki · Japan7.0 kmin this dpt
- Water bodyIbaraki · Japan1.3 kmin this dpt
- NamegataIbaraki · Japan0.0 kmin this dpt
3 intersecting protected areas
Suigo-Tsukuba
IUCN VQuasi National Park
Atagoyama
IUCN IVPrefectural Wildlife Protection Area
Ibaraki Plant, The Yokohama Rubber Co., Ltd.
IUCN Not ApplicableOECM
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
87 distinct species · 191 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 園部川 : 15 espèces reliées par 27 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 6 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
46km
Max discharge
1,6m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.