Ruisseau· 10 segments
横川
Crosses 1 administrative regions : Oguni
Total length
160km
Max discharge
8,1m³/s
Max Strahler
3
Segments matched
10
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- OguniYamagata · Japan25.0 kmin this dpt
3 intersecting protected areas
Iidesan Shuhen
IUCN IbForest Ecosystem Reserve
Iidesan
IUCN IVPrefectural Wildlife Protection Area
Oguni
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
393 distinct species · 504 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 横川 : 33 espèces reliées par 38 interactions GloBI sur 5 types (connectance 5.4%, filtre Serrano α=0.2). 5 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
160km
Max discharge
8,1m³/s
Max Strahler
3
Segments matched
10
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.