Ruisseau· 12 segments
坂内川
Crosses 2 administrative regions : Ibigawa, Kinomoto
Total length
25km
Max discharge
7,8m³/s
Max Strahler
3
Segments matched
12
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
3 intersecting protected areas
Ibi
IUCN VPrefectural Natural Park
Esumi Mountains
IUCN VGreen Corridor
Kawashiri
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 12 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
100 distinct species · 156 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 坂内川 : 18 espèces reliées par 13 interactions GloBI sur 4 types (connectance 7.6%, filtre Serrano α=0.2). 1 bulle taxonomique (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
25km
Max discharge
7,8m³/s
Max Strahler
3
Segments matched
12
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.