Ruisseau· 2 segments
防賀川
Crosses 4 administrative regions : Jōyō, Kumiyama, Kyōtanabe, Yawata
Total length
12km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
1 intersecting protected areas
Kannabiyama
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
151 distinct species · 419 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 防賀川 : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 2 types (connectance 9.1%, filtre Serrano α=0.2). 8 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
12km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.