Rivière· 2 segments
井谷川
Crosses 1 administrative regions : Takahashi
Total length
26km
Max discharge
16,9m³/s
Max Strahler
4
Segments matched
2
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- TakahashiOkayama · Japan5.2 kmin this dpt
1 intersecting protected areas
Takahashi gawa Joryu
IUCN VPrefectural Natural Park
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
281 distinct species · 459 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 井谷川 : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 8.8%, 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
26km
Max discharge
16,9m³/s
Max Strahler
4
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.