Ontologia

HydroLAKES lake · #156896

Bornan

Natural lakeSwedenEurope 18 m

Surface area

2,66km²

Avg depth

3,9m

Volume

10,28km³

Shoreline

13,6km

Administrative coverage

Parent watershed

hybas-20800316302528 km² · upstream 2528 km²

1 dept-equivalent regions (GADM L2)

  • Norrtälje
    Stockholm · Sweden
    2.68 km²
    100.0% of lake

8 intersecting protected areas

  • 2064682 Långnäset

    IUCN IV

    Nature Reserve

    0.19 km² overlap

  • Björnviken-Mörtviken

    IUCN Not Assigned

    Natura 2000 SCI

    0.04 km² overlap

  • Björnviken-Mörtviken

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.04 km² overlap

  • Balet

    IUCN Not Assigned

    Natura 2000 SCI

    0.01 km² overlap

  • Balet

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.01 km² overlap

  • SK 740-2006

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.01 km² overlap

  • 2045419 Klovsten

    IUCN Ia

    Nature Reserve

    0.00 km² overlap

  • SK 426-2011

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.00 km² overlap

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

Species present

1 452 distinct species · 6 600 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 600 obs · 1 cellules
Obs. / cellule
≥ 6 600
6 600–6 599
6 600–6 599
6 600–6 599
< 6 600

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

Ecological tissue

Sample of 36 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 Bornan : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 6 types (connectance 11.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
81
Connectance
0.115
Patrimoniales
1
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

2,66km²

Avg depth

3,9m

Volume

10,280km³

Watershed

43km²

Shoreline

13,6km

Shore dev. idx

2,35

Residence time

329days

Elevation

18m

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