Rivière· 3 segments
金原川
Crosses 2 administrative regions : Tōmi, Ueda
Total length
11km
Max discharge
40,8m³/s
Max Strahler
4
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
2 intersecting protected areas
Asama
IUCN IVNational Wildlife Protection Area
Washibasan
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
552 distinct species · 878 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 金原川 : 19 espèces reliées par 32 interactions GloBI sur 5 types (connectance 10.7%, 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
11km
Max discharge
40,8m³/s
Max Strahler
4
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.