Lacassine
IUCN IVNational Wildlife Refuge
135 km²
Parish · USA
Jefferson Davis
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 149
Observations
193 901
Area
1 708,2km²
Ecological tissue
Sample of 26 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 Jefferson Davis : 11 espèces reliées par 86 interactions GloBI sur 3 types (connectance 19.8%, filtre Serrano α=0.2). 19 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
86
Connectance
0.198
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
1 149 distinct species · 193 901 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,9°C
Annual rain
1 725mm
Warmest m°
32,4°C
Coldest m°
7,0°C
Elevation: 6 m on average (min -0 m, max 17 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,9°C
Annual rain
1 725mm
Warmest month
32,4°C
Coldest month
7,0°C
Mean alt.
6m
Min
-0m
Max
17m
Std. dev.
4m
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
25,9g/kg
Clay
21,6%
Sand
20,7%
Silt
57,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
44,6g/kg
Clay
20,6%
Sand
21,1%
Silt
58,4%
5–15 cm
pH H₂O
5,6
Org. C
18,8g/kg
Clay
21,0%
Sand
20,9%
Silt
58,2%
15–30 cm
pH H₂O
5,6
Org. C
14,3g/kg
Clay
23,1%
Sand
20,1%
Silt
56,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest32.8%
Crops31.6%
Built-up0.5%
Bare soil1.3%
Other (grassland, water…)33.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 11 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
274,3km
Lake surface here
11,63km²
Basins crossed
6
Max stream order
5
Max drainage
5 938km²
Discharge in basins
125,1m³/s
Mean precip.
1 493mm/an
Mean T°
19,6°C
Moisture idx
0,07
Mean runoff
705mm/an
Mean elev. (basins)
11m
Watersheds crossing here
- Bassin de Bell City Drainage Canalsub-area1 480,7 km²overlap970.65 km²57%
- Bassin de Bayou Serpentsub-area1 445,4 km²overlap424.51 km²25%
- Bassin de Bayou Nezpiquesub-area627,1 km²overlap202.23 km²12%
- Bassin de Mermentau Riversub-area338,6 km²overlap81.73 km²5%
- Bassin de Mermentau Riversub-area67,8 km²overlap29.00 km²2%
- Bassin de Bayou Queue de Tortuesub-area1 073,3 km²overlap0.09 km²0%
Lakes (11, top by area)
- Lake Arthurarea16,4 km²avg depth1.0 m
- Lake #13916area1,2 km²avg depth0.7 m
- Lac 1065698area0,9 km²avg depth3.8 m
- Lac 1065977area0,8 km²avg depth1.8 m
- Lac 1065878area0,8 km²avg depth1.9 m
- Lac 1065687area0,7 km²avg depth3.9 m
- Lac 1066003area0,4 km²avg depth0.7 m
- Lac 1065976area0,4 km²avg depth1.1 m
- Lac 1065721area0,2 km²avg depth0.7 m
Rivers / streams (20, ord ≥ 4)
- Bayou Serpentord 3len here37.21 km59%total63 km
- Bayou Nezpiqueord 4len here34.65 km25%total139 km
- East Bayou Lacassineord 2len here23.79 km100%total24 km
- Bayou Cheneord 3len here22.16 km100%total22 km
- Bell City Drainage Canalord 3len here21.89 km34%total65 km
- West Bayou Lacassineord 3len here20.94 km98%total21 km
- Little Bayouord 3len here20.39 km100%total20 km
- Mermentau Riverord 5len here17.42 km15%total120 km
- Bayou Lacassineord 5len here16.40 km37%total45 km
- Bayou Grand Maraisord 3len here10.85 km100%total11 km
- Calcasieu Riverord 6len here9.79 km4%total271 km
- Keystone Ditchord 5len here9.16 km96%total10 km
8 more river segmentssorted by Strahler order + length
- Bayou Arceneauxord 3len here8.65 km48%total18 km
- Marsh Bayouord 5len here6.82 km65%total10 km
- Little Bayouord 1len here3.98 km100%total4 km
- Bayou Alligatorord 1len here3.85 km78%total5 km
- Hickory Gullyord 1len here3.61 km100%total4 km
- Barnes Creekord 2len here1.72 km3%total53 km
- Little Marsh Bayouord 1len here1.03 km14%total8 km
- Bayou Plaqueminesord 4len here≈ tangenttotal32 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,0nW
Built-up
47,3%
Pesticides
13,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas7
IUCN V · 5IUCN IV · 1IUCN Not Assigned · 1
Calcasieu River
IUCN VState Wild or Scenic River
37 km²
Lacassane Coastal Prairie
IUCN Not AssignedMitigation Bank · 2005
3 km²
Wetlands Reserve Program (WRP), Jefferson Davis, LA
IUCN VReserve Program · 2012
3 km²
Farm Service Agency Interest Of La
IUCN VConservation Easement
3 km²
Cc Road Savannas Fee
IUCN VPrivate Conservation Land · 1999
2 km²
Complete list7 protected areas
- LacassineNational Wildlife RefugeIUCN IV135 km²
- Calcasieu RiverState Wild or Scenic RiverIUCN V37 km²
- Lacassane Coastal PrairieMitigation BankIUCN Not Assigned20053 km²
- Wetlands Reserve Program (WRP), Jefferson Davis, LAReserve ProgramIUCN V20123 km²
- Farm Service Agency Interest Of LaConservation EasementIUCN V3 km²
- Cc Road Savannas FeePrivate Conservation LandIUCN V19992 km²
- AbiliPrivate ConservationIUCN V20180 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN