Ontologia

HydroLAKES lake · #112540

Lake Anna

Natural lakeUnited States of AmericaNorth America 77 m

Surface area

2,24km²

Avg depth

4,6m

Volume

10,34km³

Shoreline

16,3km

Administrative coverage

Parent watershed

hybas-70805943701543 km² · upstream 1543 km²

3 dept-equivalent regions (GADM L2)

  • Louisa
    Virginia · United States
    1.64 km²
    72.9% of lake
  • Spotsylvania
    Virginia · United States
    0.60 km²
    26.7% of lake
  • Orange
    Virginia · United States
    0.01 km²
    0.4% of lake

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

Species present

260 distinct species · 6 172 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 172 obs · 1 cellules
Obs. / cellule
≥ 6 172
6 172–6 171
6 172–6 171
6 172–6 171
< 6 172

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 Lake Anna : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
72
Connectance
0.088
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

2,24km²

Avg depth

4,6m

Volume

10,340km³

Watershed

297km²

Shoreline

16,3km

Shore dev. idx

3,07

Residence time

26days

Elevation

77m

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