Ruisseau· 5 segments
抜井川
Crosses 2 administrative regions : Saku, Sakuho
Total length
19km
Max discharge
1,5m³/s
Max Strahler
2
Segments matched
5
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
2 intersecting protected areas
Myogi-Arafune-Sakukogen
IUCN VQuasi National Park
Uetakidaira
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
271 distinct species · 368 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 抜井川 : 15 espèces reliées par 11 interactions GloBI sur 6 types (connectance 10.5%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
19km
Max discharge
1,5m³/s
Max Strahler
2
Segments matched
5
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.