Ontologia

Rivière· 10 segments

Stjørdalselva

Crosses 2 administrative regions : Meråker, Stjørdal

rivière

Total length

56km

Max discharge

59,4m³/s

Max Strahler

5

Segments matched

10

River geography2 admin regions · 0 communes

Parent watershed

hybas-20800364002103 km²

2 administrative regions crossed (GADM L2)

  • Stjørdal
    Nord-Trøndelag · Norway
    28.5 km
    in this dpt
  • Meråker
    Nord-Trøndelag · Norway
    3.0 km
    in this dpt

7 intersecting protected areas

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

961 distinct species · 14 493 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Stjørdalselva : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 11.9%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
79
Connectance
0.119
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

56km

Max discharge

59,4m³/s

Max Strahler

5

Segments matched

10

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