Ontologia

HydroLAKES lake · #157741

Hajeren

Natural lakeNorwayEurope 413 m

Surface area

2,07km²

Avg depth

11,4m

Volume

23,57km³

Shoreline

18,2km

Administrative coverage

Parent watershed

hybas-20800337305730 km² · upstream 5730 km²

2 dept-equivalent regions (GADM L2)

  • Kongsberg
    Buskerud · Norway
    1.44 km²
    69.3% of lake
  • Hof
    Vestfold · Norway
    0.64 km²
    30.7% of lake

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

336 distinct species · 1 015 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 015 obs · 1 cellules
Obs. / cellule
≥ 1 015
1 015–1 014
1 015–1 014
1 015–1 014
< 1 015

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 41 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 Hajeren : 29 espèces reliées par 81 interactions GloBI sur 7 types (connectance 9.9%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
81
Connectance
0.099
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

2,07km²

Avg depth

11,4m

Volume

23,570km³

Watershed

17km²

Shoreline

18,2km

Shore dev. idx

3,57

Residence time

768days

Elevation

413m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.