Ontologia

Ruisseau· 2 segments

大堀排水路

Crosses 3 administrative regions : Goka, Koga, Kurihashi

ruisseau

Total length

5km

Max discharge

0,5m³/s

Max Strahler

2

Segments matched

2

River geography3 admin regions · 0 communes

Parent watershed

hybas-4080587490585 km²

3 administrative regions crossed (GADM L2)

  • Kurihashi
    Saitama · Japan
    2.3 km
    in this dpt
  • Koga
    Ibaraki · Japan
    0.3 km
    in this dpt
  • Goka
    Ibaraki · Japan
    0.0 km
    in this dpt

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

135 distinct species · 399 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 大堀排水路 : 26 espèces reliées par 66 interactions GloBI sur 5 types (connectance 9.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
66
Connectance
0.094
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

5km

Max discharge

0,5m³/s

Max Strahler

2

Segments matched

2

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