Ruisseau· 23 segments
奈半利川
Crosses 4 administrative regions : Kitagawa, Nahari, Tano, Umaji
Total length
53km
Max discharge
16,5m³/s
Max Strahler
3
Segments matched
23
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
5 intersecting protected areas
Shikoku Mountains
IUCN VGreen Corridor
Senbonyama
IUCN IVPrefectural Wildlife Protection Area
Yanase
IUCN VPrefectural Natural Park
Notomo
IUCN IVPrefectural Wildlife Protection Area
Yanase Xxx （Idenshigen）
IUCN IVRare Population Protected Forest
1 page = 1 named river (aggregation of 23 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
98 distinct species · 112 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 奈半利川 : 6 espèces reliées par 5 interactions GloBI sur 1 type (connectance 23.8%, 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
53km
Max discharge
16,5m³/s
Max Strahler
3
Segments matched
23
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.