Ontologia

Rivière· 20 segments

Drammenselva

Crosses 4 administrative regions : Drammen, Modum, Nedre Eiker, Øvre Eiker

rivière

Total length

42km

Max discharge

318,6m³/s

Max Strahler

6

Segments matched

20

River geography4 admin regions · 0 communes

Parent watershed

hybas-2080033670997 km²

4 administrative regions crossed (GADM L2)

  • Modum
    Buskerud · Norway
    17.8 km
    in this dpt
  • Nedre Eiker
    Buskerud · Norway
    15.4 km
    in this dpt
  • Øvre Eiker
    Buskerud · Norway
    13.6 km
    in this dpt
  • Drammen
    Buskerud · Norway
    5.5 km
    in this dpt

10 intersecting protected areas

1 more protected areas

  • Austad

    IUCN Not Reported

    Natural Monument

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

Species present

652 distinct species · 7 161 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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 Drammenselva : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 7 types (connectance 14.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
81
Connectance
0.144
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

42km

Max discharge

318,6m³/s

Max Strahler

6

Segments matched

20

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