Delta National Wildlife Refuge
IUCN IVMarine Protected Area · 1935
203 km²
Parish · USA
Plaquemines
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
2 048
Observations
228 579
Area
2 523,7km²
Ecological tissue
Sample of 39 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 Plaquemines : 27 espèces reliées par 67 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
67
Connectance
0.090
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 048 distinct species · 228 579 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
21,4°C
Annual rain
1 585mm
Warmest m°
29,4°C
Coldest m°
11,9°C
Elevation: -1 m on average (min -14 m, max 1 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
21,4°C
Annual rain
1 585mm
Warmest month
29,4°C
Coldest month
11,9°C
Mean alt.
-1m
Min
-14m
Max
1m
Std. dev.
2m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,6
Org. C
106,2g/kg
Clay
43,7%
Sand
17,0%
Silt
39,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: wbGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
88,1g/kg
Clay
43,1%
Sand
17,2%
Silt
39,7%
5–15 cm
pH H₂O
5,6
Org. C
103,3g/kg
Clay
43,3%
Sand
17,1%
Silt
39,6%
15–30 cm
pH H₂O
5,6
Org. C
127,1g/kg
Clay
44,8%
Sand
16,6%
Silt
38,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest11.2%
Crops2.1%
Built-up0.3%
Bare soil0.7%
Other (grassland, water…)85.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology14 basins · 50 lakes · 22 rivers
Hydrology metrics for this exact territory
Stream length here
256,0km
Lake surface here
330,00km²
Basins crossed
14
Max stream order
9
Max drainage
3 179 500km²
Discharge in basins
22 893,1m³/s
Mean precip.
1 524mm/an
Mean T°
20,4°C
Moisture idx
0,17
Max snow
1%
Mean runoff
696mm/an
Mean elev. (basins)
1m
Watersheds crossing here
- Bassin de Pass a Loutresub-area777,3 km²overlap566.27 km²22%
- Bassin de Mississippi Riversub-area486 km²overlap463.03 km²18%
- Basin #47100sub-area587,1 km²overlap402.19 km²16%
- Bassin de Mississippi Riversub-area2 700,1 km²overlap244.12 km²10%
- Basin #47020sub-area235,8 km²overlap229.69 km²9%
- Basin #62470sub-area168,4 km²overlap168.22 km²7%
- Bassin de Outlet W-1sub-area379,7 km²overlap155.23 km²6%
- Basin #47130sub-area175,1 km²overlap106.91 km²4%
- Basin #47000sub-area281,8 km²overlap78.08 km²3%
Lakes (50, top by area)
- Lake Salvadorarea386,5 km²avg depth1.0 m
- Lost Flat Bayarea62,1 km²avg depth1.0 m
- Lake #9577area39,8 km²avg depth1.0 m
- Lake Fivearea36,3 km²avg depth1.0 m
- Lake #9582area33,6 km²avg depth1.0 m
- Lake Leryarea21 km²avg depth1.0 m
- Lake Judge Perezarea11,1 km²avg depth1.0 m
- Lake #9586area10,3 km²avg depth1.0 m
- Lake #14262area9,1 km²avg depth0.7 m
41 more lakes
- Lake #14099area7,6 km²avg depth0.7 m
- Bay Sansboisarea7 km²avg depth0.9 m
- Lake #13999area6,5 km²avg depth2.1 m
- Lake #14215area6 km²avg depth0.5 m
- Bay Joe Wisearea4,9 km²avg depth0.8 m
- Lake #14238area4,8 km²avg depth1.1 m
- Lake #14073area4,7 km²avg depth0.6 m
- Lake #14237area4,6 km²avg depth1.2 m
- Lake #14178area4,3 km²avg depth0.9 m
- Lake #14250area4 km²avg depth0.7 m
- Lake #14081area3,7 km²avg depth0.8 m
- Lake #14274area3,5 km²avg depth0.5 m
- Lake #14146area3,4 km²avg depth0.7 m
- Lake #14221area3,3 km²avg depth0.8 m
- Lake #14079area3 km²avg depth0.9 m
- Lake #14123area2,8 km²avg depth0.6 m
- Lake #14287area2,8 km²avg depth1.0 m
- Lake #14278area2,8 km²avg depth0.8 m
- Bay Denessearea2,8 km²avg depth1.1 m
- Raquette Bayarea2,7 km²avg depth0.6 m
- Lake #14055area2,6 km²avg depth0.6 m
- Lake #14088area2,6 km²avg depth0.5 m
- Fleur Pond (historical)area2,5 km²avg depth0.7 m
- Petit Bay Chene Fleurarea2,5 km²avg depth0.8 m
- Lake #14290area2,4 km²avg depth1.0 m
- Lake #14044area2,4 km²avg depth0.8 m
- Lake #14251area2,4 km²avg depth0.7 m
- Lake #14201area2,2 km²avg depth1.2 m
- Lake #14213area2,1 km²avg depth0.5 m
- Lake #14087area2 km²avg depth0.5 m
- Lake #14051area2 km²avg depth0.8 m
- Lake #14243area2 km²avg depth0.5 m
- Lake #14042area1,9 km²avg depth1.0 m
- Lake #14103area1,9 km²avg depth0.6 m
- Lake #14242area1,8 km²avg depth0.6 m
- Lake #14019area1,8 km²avg depth0.8 m
- Lake #14120area1,8 km²avg depth0.7 m
- Spanish Lakearea1,7 km²avg depth0.6 m
- Lake #14052area1,7 km²avg depth0.7 m
- Lake #14210area1,5 km²avg depth0.6 m
- Lake #14020area1,5 km²avg depth0.9 m
Rivers / streams (22, ord ≥ 4)
- Mississippi Riverord 9len here135.21 km3%total5243 km
- Pass a Loutreord 3len here19.48 km100%total19 km
- Southwest Passord 9len here16.95 km89%total19 km
- Main Passord 1len here8.70 km100%total9 km
- Cottam Passord 2len here7.85 km96%total8 km
- Grand Passord 1len here7.46 km56%total13 km
- Main Passord 1len here6.51 km80%total8 km
- Grand Passord 9len here5.57 km100%total6 km
- Main Passord 2len here5.57 km97%total6 km
- Southeast Passord 1len here5.19 km100%total5 km
- Dennis Passord 2len here5.00 km100%total5 km
- Bayou Baratariaord 3len here4.82 km43%total11 km
10 more river segmentssorted by Strahler order + length
- Buoy Passord 2len here4.50 km100%total5 km
- South Passord 1len here4.40 km100%total4 km
- South Passord 1len here4.30 km100%total4 km
- Pass Tante Phineord 1len here3.96 km36%total11 km
- Bayou des Famillesord 3len here3.06 km14%total21 km
- Johnson Passord 1len here2.46 km100%total2 km
- Southeast Passord 2len here2.31 km100%total2 km
- Adolph Clark Passord 1len here1.99 km100%total2 km
- East Forkord 1len here0.58 km95%total1 km
- Outlet W-1ord 1len here0.14 km1%total19 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,5nW
Built-up
27,9%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas7
IUCN IV · 3IUCN V · 2IUCN Ib · 1IUCN III · 1🌊 Marine · 7
Breton National Wildlife Refuge
IUCN IVMarine Protected Area · 1904
113 km²
Jean Lafitte National Historical Park and Pres National Historical Park
IUCN VMarine Protected Area · 1978
88 km²
Jean Lafitte National Hist
IUCN VNational Historical Park · 1978
67 km²
Breton
IUCN IVNational Wildlife Refuge · 1904
49 km²
Breton National Wildlife Refuge.Wilderness Area
IUCN IbNational Wildlife Refuge · 1975
48 km²
Complete list7 protected areas
- Delta National Wildlife RefugeMarine Protected AreaIUCN IV1935203 km²
- Breton National Wildlife RefugeMarine Protected AreaIUCN IV1904113 km²
- Jean Lafitte National Historical Park and Pres National Historical ParkMarine Protected AreaIUCN V197888 km²
- Jean Lafitte National HistNational Historical ParkIUCN V197867 km²
- BretonNational Wildlife RefugeIUCN IV190449 km²
- Breton National Wildlife Refuge.Wilderness AreaNational Wildlife RefugeIUCN Ib197548 km²
- Saint Bernrd State Park District 1State ParkIUCN III19712 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN