Ontologia

Ruisseau

L'Ysieux

Crosses 2 administrative regions : Oise, Val-d'Oise

ruisseau

Total length

21km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

1

River geography2 admin regions · 16 communes

Parent watershed

hybas-20804551801507 km²

2 administrative regions crossed (GADM L2)

  • Val-d'Oise
    Île-de-France · France
    15.1 km
    in this dpt
  • Oise
    Hauts-de-France · France
    1.2 km
    in this dpt
16 communes (L5)

2 intersecting protected areas

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

Species present

1 691 distinct species · 38 216 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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 L'Ysieux : 25 espèces reliées par 91 interactions GloBI sur 5 types (connectance 16.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
91
Connectance
0.162
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

21km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

1

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