Marsh Island
IUCN VWildlife Refuge · 1991
286 km²
Parish · USA
Iberia
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 616
Observations
48 736
Area
1 608,7km²
Ecological tissue
Sample of 42 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 Iberia : 30 espèces reliées par 84 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
42
Interactions affichées
84
Connectance
0.098
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
1 616 distinct species · 48 736 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
20,3°C
Annual rain
1 758mm
Warmest m°
31,4°C
Coldest m°
8,2°C
Elevation: 2 m on average (min -6 m, max 19 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
20,3°C
Annual rain
1 758mm
Warmest month
31,4°C
Coldest month
8,2°C
Mean alt.
2m
Min
-6m
Max
19m
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
6,1
Org. C
61,9g/kg
Clay
38,2%
Sand
5,2%
Silt
56,6%
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
6,0
Org. C
67,2g/kg
Clay
37,4%
Sand
5,4%
Silt
57,3%
5–15 cm
pH H₂O
6,1
Org. C
52,2g/kg
Clay
37,6%
Sand
5,3%
Silt
57,1%
15–30 cm
pH H₂O
6,2
Org. C
66,5g/kg
Clay
39,6%
Sand
4,9%
Silt
55,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest32.5%
Crops14.6%
Built-up1.0%
Bare soil0.3%
Other (grassland, water…)51.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 41 lakes · 24 rivers
Hydrology metrics for this exact territory
Stream length here
232,5km
Lake surface here
78,89km²
Basins crossed
9
Max stream order
4
Max drainage
4 856km²
Discharge in basins
45,2m³/s
Mean precip.
1 529mm/an
Mean T°
19,7°C
Moisture idx
0,10
Mean runoff
735mm/an
Mean elev. (basins)
6m
Watersheds crossing here
- Bassin de Gulf Intracoastal Waterwaysub-area900,2 km²overlap335.02 km²21%
- Bassin de Freshwater Bayou Canalsub-area1 522 km²overlap278.04 km²17%
- Bassin de Delcambre Canalsub-area399,6 km²overlap260.72 km²16%
- Bassin de Bayou Techesub-area2 204,7 km²overlap237.69 km²15%
- Bassin de Grand Bayousub-area1 885 km²overlap236.90 km²15%
- Bassin de Bayou Grosse Tetesub-area2 305,3 km²overlap171.42 km²11%
- Bassin de Atchafalaya Basin Main Channelsub-area332,6 km²overlap49.94 km²3%
- Bassin de Chicot Passsub-area499,5 km²overlap33.01 km²2%
- Bassin de Gulf Intracoastal Waterwaysub-area282,8 km²overlap5.96 km²0%
Lakes (41, top by area)
- Bird Island Chutearea62,9 km²avg depth4.0 m
- Spanish Lakearea4,8 km²avg depth4.4 m
- Lake Peigneurarea4,4 km²avg depth2.9 m
- Oyster Lakearea2,4 km²avg depth0.7 m
- Lake Fermearea1,6 km²avg depth0.6 m
- Lake #14095area1,5 km²avg depth0.5 m
- Lake #14091area1,4 km²avg depth0.8 m
- Lake #14005area1,3 km²avg depth0.5 m
- Lake #13918area1,1 km²avg depth1.6 m
32 more lakes
- Lake #13940area1 km²avg depth1.4 m
- Lac 1066842area0,8 km²avg depth1.6 m
- Lac 1066783area0,7 km²avg depth1.6 m
- Lac 1066857area0,7 km²avg depth1.7 m
- Lac 1066825area0,7 km²avg depth1.5 m
- Lac 1066869area0,7 km²avg depth1.4 m
- Lac 1066828area0,6 km²avg depth1.7 m
- Lac 1066885area0,6 km²avg depth1.3 m
- Lac 1066060area0,5 km²avg depth1.8 m
- Lac 1066829area0,5 km²avg depth1.5 m
- Lac 1066875area0,4 km²avg depth1.3 m
- Lac 1066810area0,4 km²avg depth1.5 m
- Lac 1066806area0,4 km²avg depth1.3 m
- Lac 1066791area0,4 km²avg depth1.4 m
- Lac 1066803area0,3 km²avg depth0.6 m
- Lac 1066000area0,3 km²avg depth1.9 m
- Lac 1066032area0,3 km²avg depth2.5 m
- Lac 1066762area0,3 km²avg depth0.8 m
- Lac 1066105area0,3 km²avg depth1.8 m
- Lac 1066163area0,3 km²avg depth1.3 m
- Lac 1066027area0,2 km²avg depth1.8 m
- Lac 1066867area0,2 km²avg depth1.0 m
- Lac 1066821area0,2 km²avg depth1.0 m
- Lac 1066866area0,2 km²avg depth1.2 m
- Lac 1066056area0,2 km²avg depth2.4 m
- Lac 1066831area0,2 km²avg depth1.3 m
- Lac 1066817area0,2 km²avg depth1.2 m
- Lac 1066084area0,1 km²avg depth2.1 m
- Lac 1066272area0,1 km²avg depth1.7 m
- Lac 1066126area0,1 km²avg depth1.6 m
- Lac 1066010area0,1 km²avg depth1.2 m
- Lac 1066795area0,1 km²avg depth1.3 m
Rivers / streams (24, ord ≥ 4)
- Bayou Techeord 4len here50.84 km29%total174 km
- Delcambre Canalord 3len here36.08 km92%total39 km
- Rodere Canalord 1len here14.83 km100%total15 km
- Chicot Passord 4len here13.17 km44%total30 km
- Grand Bayouord 4len here12.43 km28%total45 km
- Little Bayou Pigeonord 4len here12.29 km88%total14 km
- Bayou Lucienord 2len here12.02 km98%total12 km
- Gulf Intracoastal Waterwayord 2len here9.78 km100%total10 km
- West Branch Oyster Bayouord 1len here9.51 km100%total10 km
- Intracoastal Waterway Alternate Routeord 5len here8.91 km11%total81 km
- Loreauville Canalord 1len here8.05 km100%total8 km
- Chopin Chuteord 4len here7.74 km75%total10 km
12 more river segmentssorted by Strahler order + length
- Gulf Intracoastal Waterwayord 1len here6.38 km97%total7 km
- Bayou Platteord 1len here6.24 km100%total6 km
- East Branch Oyster Bayouord 1len here4.91 km100%total5 km
- Little Goddel Bayouord 2len here4.38 km49%total9 km
- Coulee du Portageord 2len here3.72 km27%total14 km
- Big Bayou Pigeonord 1len here3.16 km100%total3 km
- Old Riverord 3len here2.91 km37%total8 km
- Gulf Intracoastal Waterwayord 3len here1.69 km100%total2 km
- Worm Bayouord 1len here1.56 km84%total2 km
- Worm Bayouord 2len here0.77 km42%total2 km
- Oyster Bayouord 2len here0.61 km101%total1 km
- Gulf Intracoastal Waterwayord 1len here0.56 km94%total1 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,8nW
Built-up
100,7%
Pesticides
9,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2🌊 Marine · 1
Lake Fausse Pointe
IUCN VState Park · 1987
23 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN