Ontologia

Ruisseau

Westerveldse Aa

Crosses 4 administrative regions : Dalfsen, Raalte, Zwartewaterland, Zwolle

ruisseau

Total length

8km

Max discharge

2,9m³/s

Max Strahler

2

Segments matched

1

River geography4 admin regions · 0 communes

Parent watershed

hybas-2080360930490 km²

4 administrative regions crossed (GADM L2)

  • Zwolle
    Overijssel · Netherlands
    12.7 km
    in this dpt
  • Dalfsen
    Overijssel · Netherlands
    6.6 km
    in this dpt
  • Raalte
    Overijssel · Netherlands
    6.0 km
    in this dpt
  • Zwartewaterland
    Overijssel · Netherlands
    2.0 km
    in this dpt

4 intersecting protected areas

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

Species present

2 603 distinct species · 38 419 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 42 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 Westerveldse Aa : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 125 interactions GloBI sur 6 types (connectance 13.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
125
Connectance
0.138
Patrimoniales
1
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

8km

Max discharge

2,9m³/s

Max Strahler

2

Segments matched

1

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