Ontologia

Ruisseau· 3 segments

Aa

Crosses 3 administrative regions : Bielefeld, Herford, Höxter

ruisseau

Total length

178km

Max discharge

3,4m³/s

Max Strahler

3

Segments matched

3

River geography3 admin regions · 0 communes

Parent watershed

hybas-20803719301440 km²

3 administrative regions crossed (GADM L2)

  • Herford
    Nordrhein-Westfalen · Germany
    7.0 km
    in this dpt
  • Höxter
    Nordrhein-Westfalen · Germany
    2.2 km
    in this dpt
  • Bielefeld
    Nordrhein-Westfalen · Germany
    1.1 km
    in this dpt

22 intersecting protected areas

13 more protected areas

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

788 distinct species · 2 228 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 30 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 Aa : 18 espèces reliées par 113 interactions GloBI sur 6 types (connectance 24.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
113
Connectance
0.243
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

178km

Max discharge

3,4m³/s

Max Strahler

3

Segments matched

3

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