Ontologia

HydroLAKES lake · #1302

Bolsena

Natural lakeItalyEurope 304 m

Surface area

113,44km²

Avg depth

18,3m

Volume

2 080,83km³

Shoreline

46,9km

Administrative coverage

Parent watershed

hybas-20800157001082 km² · upstream 1082 km²

1 dept-equivalent regions (GADM L2)

  • Viterbo
    Lazio · Italy
    113.63 km²
    100.0% of lake

5 intersecting protected areas

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

Species present

762 distinct species · 5 546 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 546 obs · 3 cellules
Obs. / cellule
≥ 2 911
2 911–2 910
2 911–2 910
1 492–2 910
< 1 492

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

Ecological tissue

Sample of 40 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 Bolsena : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
95
Connectance
0.116
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

113,44km²

Avg depth

18,3m

Volume

2 080,830km³

Watershed

283km²

Shoreline

46,9km

Shore dev. idx

1,24

Residence time

7 643days

Elevation

304m

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