Ontologia

Ruisseau

Wold Aa

Crosses 5 administrative regions : De Wolden, Meppel, Staphorst, Steenwijkerland, Westerveld

ruisseau

Total length

12km

Max discharge

6,5m³/s

Max Strahler

3

Segments matched

1

River geography5 admin regions · 0 communes

Parent watershed

hybas-20803607801108 km²

5 administrative regions crossed (GADM L2)

  • Westerveld
    Drenthe · Netherlands
    8.6 km
    in this dpt
  • Meppel
    Drenthe · Netherlands
    5.0 km
    in this dpt
  • De Wolden
    Drenthe · Netherlands
    0.0 km
    in this dpt
  • Staphorst
    Overijssel · Netherlands
    0.0 km
    in this dpt
  • Steenwijkerland
    Overijssel · Netherlands
    0.0 km
    in this dpt

3 intersecting protected areas

  • NNN-DR

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

  • Holtingerveld

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Holtingerveld

    IUCN IV

    Nature Conservation Act

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

Species present

4 065 distinct species · 96 181 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Wold Aa : 28 espèces reliées par 154 interactions GloBI sur 5 types (connectance 17.1%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
154
Connectance
0.171
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

12km

Max discharge

6,5m³/s

Max Strahler

3

Segments matched

1

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