Ontologia

HydroLAKES lake · #68

Pontchartrain

Natural lakeUnited States of AmericaNorth America 0 m

Surface area

1 645,24km²

Avg depth

3,8m

Volume

6 334km³

Shoreline

205,2km

Administrative coverage

Parent watershed

hybas-70807551101022 km² · upstream 12406 km²

6 dept-equivalent regions (GADM L2)

  • Saint Tammany
    Louisiana · United States
    610.01 km²
    37.1% of lake
  • Orleans
    Louisiana · United States
    358.85 km²
    21.8% of lake
  • Jefferson
    Louisiana · United States
    323.81 km²
    19.7% of lake
  • Saint John the Baptist
    Louisiana · United States
    159.34 km²
    9.7% of lake
  • Saint Charles
    Louisiana · United States
    135.10 km²
    8.2% of lake
  • Tangipahoa
    Louisiana · United States
    56.34 km²
    3.4% of lake

8 intersecting protected areas

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

Species present

2 104 distinct species · 195 789 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

195 789 obs · 43 cellules
Obs. / cellule
≥ 64 683
7 144–64 682
1 088–7 143
284–1 087
< 284

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

Ecological tissue

Sample of 35 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 Pontchartrain : 24 espèces reliées par 78 interactions GloBI sur 3 types (connectance 12.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
78
Connectance
0.124
Patrimoniales
0
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

1 645,24km²

Avg depth

3,8m

Volume

6 334,000km³

Watershed

13 746km²

Shoreline

205,2km

Shore dev. idx

1,43

Residence time

254days

Elevation

0m

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