Ruisseau
板屋沢
Crosses 1 administrative regions : Ōshika
Total length
3km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- ŌshikaNagano · Japan2.5 kmin this dpt
6 intersecting protected areas
Minami alps
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Minami alps
IUCN IINational Park
Minami alps nanbu
IUCN IVPrefectural Wildlife Protection Area
Minamiarupusu（Hijiridaketo）
IUCN IVBiocenosis Protected Forest
Takayama
IUCN IVPrefectural Wildlife Protection Area
Ogawara Inubuna Idenshigen
IUCN IVRare Population Protected Forest
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
437 distinct species · 736 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 板屋沢 : 7 espèces reliées par 8 interactions GloBI sur 3 types (connectance 22.2%, filtre Serrano α=0.2). 2 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
3km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.