Ontologia

Rivière· 20 segments

Audna

Crosses 4 administrative regions : Audnedal, Hægebostad, Lindesnes, Marnardal

rivière

Total length

46km

Max discharge

19,8m³/s

Max Strahler

4

Segments matched

20

River geography4 admin regions · 0 communes

Parent watershed

hybas-20800339401876 km²

4 administrative regions crossed (GADM L2)

  • Audnedal
    Vest-Agder · Norway
    30.7 km
    in this dpt
  • Lindesnes
    Vest-Agder · Norway
    20.6 km
    in this dpt
  • Hægebostad
    Vest-Agder · Norway
    0.1 km
    in this dpt
  • Marnardal
    Vest-Agder · Norway
    0.0 km
    in this dpt

5 intersecting protected areas

1 page = 1 named river (aggregation of 20 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

985 distinct species · 3 495 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 Audna : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) 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
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

46km

Max discharge

19,8m³/s

Max Strahler

4

Segments matched

20

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