Ontologia

HydroLAKES lake · #9265

Lake Anna

ReservoirUnited States of AmericaNorth America 76 m

Surface area

44,63km²

Avg depth

8,4m

Volume

376,2km³

Shoreline

208,8km

Administrative coverage

Parent watershed

hybas-70805943701543 km² · upstream 1543 km²

3 dept-equivalent regions (GADM L2)

  • Louisa
    Virginia · United States
    26.70 km²
    59.8% of lake
  • Spotsylvania
    Virginia · United States
    17.93 km²
    40.1% of lake
  • Orange
    Virginia · United States
    0.04 km²
    0.1% of lake

1 intersecting protected areas

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

Species present

252 distinct species · 2 065 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 065 obs · 1 cellules
Obs. / cellule
≥ 2 065
2 065–2 064
2 065–2 064
2 065–2 064
< 2 065

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

Ecological tissue

Sample of 44 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 : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 90 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
90
Connectance
0.095
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

44,63km²

Avg depth

8,4m

Volume

376,200km³

Watershed

888km²

Shoreline

208,8km

Shore dev. idx

8,81

Residence time

331days

Elevation

76m

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