Ontologia

Ruisseau· 12 segments

中津川

Crosses 5 administrative regions : Kuni, Sakae, Tsunan, Tōkamachi, Yamanouchi

ruisseau

Total length

315km

Max discharge

11m³/s

Max Strahler

3

Segments matched

12

River geography5 admin regions · 0 communes

Parent watershed

hybas-40805410502351 km²

5 administrative regions crossed (GADM L2)

  • Tsunan
    Niigata · Japan
    19.8 km
    in this dpt
  • Yamanouchi
    Nagano · Japan
    10.4 km
    in this dpt
  • Sakae
    Nagano · Japan
    9.5 km
    in this dpt
  • Kuni
    Gunma · Japan
    1.7 km
    in this dpt
  • Tōkamachi
    Niigata · Japan
    0.0 km
    in this dpt

3 intersecting protected areas

1 page = 1 named river (aggregation of 12 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

239 distinct species · 379 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 16 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de 中津川 : 14 espèces reliées par 11 interactions GloBI sur 4 types (connectance 9.2%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
11
Connectance
0.092
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

315km

Max discharge

11,0m³/s

Max Strahler

3

Segments matched

12

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.