Ontologia

Rivière· 23 segments

Leira

Crosses 10 administrative regions : Fet, Gjerdrum, Lom, Lunner, Luster +5

rivière

Total length

148km

Max discharge

20m³/s

Max Strahler

4

Segments matched

23

River geography10 admin regions · 0 communes

Parent watershed

hybas-20802362201202 km²

10 administrative regions crossed (GADM L2)

  • Lom
    Oppland · Norway
    26.3 km
    in this dpt
  • Nannestad
    Akershus · Norway
    20.9 km
    in this dpt
  • Ullensaker
    Akershus · Norway
    8.5 km
    in this dpt
  • Gjerdrum
    Akershus · Norway
    5.4 km
    in this dpt
  • Sørum
    Akershus · Norway
    5.4 km
    in this dpt
  • Fet
    Akershus · Norway
    4.0 km
    in this dpt
  • Lunner
    Oppland · Norway
    3.3 km
    in this dpt
  • Skedsmo
    Akershus · Norway
    3.0 km
    in this dpt
  • Rælingen
    Akershus · Norway
    0.0 km
    in this dpt
  • Luster
    Sogn og Fjordane · Norway
    0.0 km
    in this dpt

14 intersecting protected areas

5 more protected areas

1 page = 1 named river (aggregation of 23 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

14 distinct species · 21 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 8 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 Leira : 7 espèces reliées par 8 interactions GloBI sur 1 type (connectance 28.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
8
Interactions affichées
8
Connectance
0.286
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

148km

Max discharge

20,0m³/s

Max Strahler

4

Segments matched

23

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