Ontologia

HydroLAKES lake · #160

Toba

Natural lakeIndonesiaAsia 900 m

Surface area

1 129,03km²

Avg depth

212,6m

Volume

240 000km³

Shoreline

463,6km

Administrative coverage

Parent watershed

hybas-5080132430844 km² · upstream 1719 km²

8 dept-equivalent regions (GADM L2)

  • Lake Toba
    Sumatera Utara · Indonesia
    1081.89 km²
    96.3% of lake
  • Simalungun
    Sumatera Utara · Indonesia
    20.38 km²
    1.8% of lake
  • Tapanuli Utara
    Sumatera Utara · Indonesia
    9.55 km²
    0.8% of lake
  • Samosir
    Sumatera Utara · Indonesia
    6.85 km²
    0.6% of lake
  • Toba Samosir
    Sumatera Utara · Indonesia
    3.75 km²
    0.3% of lake
  • Humbang Hasundutan
    Sumatera Utara · Indonesia
    1.13 km²
    0.1% of lake

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

Species present

396 distinct species · 2 571 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 571 obs · 24 cellules
Obs. / cellule
≥ 1 368
152–1 367
23–151
14–22
< 14

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

Ecological tissue

Sample of 34 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 Toba : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
35
Connectance
0.062
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

1 129,03km²

Avg depth

212,6m

Volume

240 000,000km³

Watershed

3 725km²

Shoreline

463,6km

Shore dev. idx

3,89

Residence time

20 777days

Elevation

900m

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