Rivière· 20 segments
面河川
Crosses 2 administrative regions : Kumakōgen, Niyodogawa
Total length
50km
Max discharge
19,6m³/s
Max Strahler
4
Segments matched
20
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- KumakōgenEhime · Japan49.3 kmin this dpt
- NiyodogawaKochi · Japan0.0 kmin this dpt
7 intersecting protected areas
Shikoku Mountains
IUCN VGreen Corridor
Ishizuchisankei
IUCN IVNational Wildlife Protection Area
Ishizuchi
IUCN VQuasi National Park
Ishizuchi Sankei
IUCN IbForest Ecosystem Reserve
Shikoku Karst (kochi)
IUCN VPrefectural Natural Park
PREFECTURAL FOREST IN EHIME PREFECTURE
IUCN Not ApplicableOECM
Omogo daisan dam
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 20 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
101 distinct species · 119 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 8 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 面河川 : 5 espèces reliées par 7 interactions GloBI sur 3 types (connectance 25.0%, filtre Serrano α=0.2). 3 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
50km
Max discharge
19,6m³/s
Max Strahler
4
Segments matched
20
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.