Ontologia

HydroLAKES lake · #159285

Björkern

Natural lakeSwedenEurope 100 m

Surface area

5,39km²

Avg depth

16,2m

Volume

87,04km³

Shoreline

23km

Administrative coverage

Parent watershed

hybas-20802556602459 km² · upstream 2459 km²

1 dept-equivalent regions (GADM L2)

  • Kinda
    Östergötland · Sweden
    5.42 km²
    100.0% of lake

4 intersecting protected areas

  • 2005504 Bråtberget

    IUCN Ia

    Nature Reserve

    0.00 km² overlap

  • Tvånget

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

  • Tvånget

    IUCN Ia

    Natura 2000 SCI

    0.00 km² overlap

  • SK 361-2011

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

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

Species present

1 208 distinct species · 6 794 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 794 obs · 1 cellules
Obs. / cellule
≥ 6 794
6 794–6 793
6 794–6 793
6 794–6 793
< 6 794

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

Ecological tissue

Sample of 25 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 Björkern : 13 espèces reliées par 94 interactions GloBI sur 5 types (connectance 23.2%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
94
Connectance
0.232
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

5,39km²

Avg depth

16,2m

Volume

87,040km³

Watershed

69km²

Shoreline

23,0km

Shore dev. idx

2,79

Residence time

3 090days

Elevation

100m

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