Ruisseau· 6 segments
白雪川
Crosses 2 administrative regions : Nikaho, Yurihonjō
Total length
35km
Max discharge
4,3m³/s
Max Strahler
3
Segments matched
6
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
7 intersecting protected areas
Common fishery right area
Chokai
IUCN VQuasi National Park
Chokaisan
IUCN IVBiocenosis Protected Forest
Haraikawa
IUCN IVPrefectural Wildlife Protection Area
Hokodate
IUCN IVPrefectural Wildlife Protection Area
Nikahokonoura
IUCN IVPrefectural Wildlife Protection Area
Shishigahana Shitsugen
IUCN IVRare Population Protected Forest
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
953 distinct species · 2 062 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 白雪川 : 9 espèces reliées par 15 interactions GloBI sur 3 types (connectance 19.2%, filtre Serrano α=0.2). 4 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
35km
Max discharge
4,3m³/s
Max Strahler
3
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.