Saint Francis Sunken Lands
IUCN VState Wildlife Management Area
111 km²
County · USA
Dunklin
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 287
Observations
107 630
Area
1 417km²
Ecological tissue
Sample of 32 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 Dunklin : 22 espèces reliées par 67 interactions GloBI sur 3 types (connectance 13.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
67
Connectance
0.135
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
1 287 distinct species · 107 630 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,6°C
Annual rain
1 261mm
Warmest m°
31,9°C
Coldest m°
-1,0°C
Elevation: 81 m on average (min 71 m, max 123 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
15,6°C
Annual rain
1 261mm
Warmest month
31,9°C
Coldest month
-1,0°C
Mean alt.
81m
Min
71m
Max
123m
Std. dev.
9m
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
6,0
Org. C
15,5g/kg
Clay
23,9%
Sand
35,7%
Silt
40,3%
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
6,0
Org. C
27,1g/kg
Clay
23,1%
Sand
36,4%
Silt
40,4%
5–15 cm
pH H₂O
6,0
Org. C
11,6g/kg
Clay
21,8%
Sand
37,1%
Silt
41,1%
15–30 cm
pH H₂O
6,0
Org. C
7,8g/kg
Clay
26,9%
Sand
33,6%
Silt
39,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest11.2%
Crops69.9%
Built-up0.4%
Bare soil0.9%
Other (grassland, water…)17.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 1 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
233,0km
Lake surface here
0,27km²
Basins crossed
7
Max stream order
5
Max drainage
6 500km²
Discharge in basins
90,9m³/s
Mean precip.
1 235mm/an
Mean T°
14,9°C
Moisture idx
-0,01
Max snow
1%
Mean runoff
641mm/an
Mean elev. (basins)
82m
Watersheds crossing here
- Bassin de West Ditchsub-area1 395,5 km²overlap597.99 km²42%
- Bassin de Saint Francis Riversub-area853,2 km²overlap404.09 km²29%
- Bassin de Iron Mines Creeksub-area530,2 km²overlap249.00 km²18%
- Bassin de Ditch No. 5sub-area744,4 km²overlap103.10 km²7%
- Bassin de Saint Francis Riversub-area687,2 km²overlap62.70 km²4%
- Bassin de Right Hand Chute of Little Riversub-area234,6 km²overlap0.09 km²0%
- Bassin de Big Slough Ditchsub-area716,7 km²overlap0.01 km²0%
Lakes (1, top by area)
Rivers / streams (11, ord ≥ 4)
- West Ditchord 4len here78.35 km86%total91 km
- Saint Francis Riverord 6len here64.03 km8%total830 km
- Honey Cypress Ditch Number 34ord 1len here21.92 km64%total34 km
- Ragland Sloughord 1len here17.76 km100%total18 km
- Ditch Number 27ord 4len here13.09 km100%total13 km
- Iron Mines Creekord 2len here12.72 km18%total71 km
- Kinnemore Sloughord 1len here12.43 km43%total29 km
- Varney River Canalord 1len here7.51 km99%total8 km
- Wilhelmina Cutofford 3len here2.90 km100%total3 km
- Pemiscot Bayouord 3len here2.14 km2%total133 km
- Gate Ditchord 4len here0.17 km2%total10 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
43,0%
Pesticides
34,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas18
IUCN V · 16IUCN IV · 1IUCN III · 1
Big
IUCN VLake
44 km²
Farm Service Agency Interest Of Mo
IUCN IVNational Wildlife Refuge
38 km²
Wetlands Reserve Program (WRP), Dunklin, MO
IUCN VReserve Program · 1997
17 km²
Hornersville Swamp
IUCN VConservation Area
13 km²
Wetlands Reserve Program (WRP), Greene, AR
IUCN VReserve Program · 1996
6 km²
Complete list18 protected areas
- Saint Francis Sunken LandsState Wildlife Management AreaIUCN V111 km²
- BigLakeIUCN V44 km²
- Farm Service Agency Interest Of MoNational Wildlife RefugeIUCN IV38 km²
- Wetlands Reserve Program (WRP), Dunklin, MOReserve ProgramIUCN V199717 km²
- Hornersville SwampConservation AreaIUCN V13 km²
- Wetlands Reserve Program (WRP), Greene, ARReserve ProgramIUCN V19966 km²
- WilhelminaConservation AreaIUCN V19806 km²
- Cash (Ben) MemorialConservation AreaIUCN V5 km²
- Little RiverConservation AreaIUCN V19934 km²
- Cash SwampNatural AreaIUCN V2 km²
- Wetlands Reserve Program (WRP), Dunklin, MOReserve ProgramIUCN V19961 km²
- Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Dunklin, MOWatershed ProtectionIUCN V20101 km²
- MorrisState ParkIUCN III20001 km²
- Frisbee CutoffAccessIUCN V0 km²
- Chalk Bluff TrailAccessIUCN V0 km²
- Warbler WoodsConservation AreaIUCN V0 km²
- Wetlands Reserve Program (WRP), Dunklin, MOReserve ProgramIUCN V20000 km²
- Farm Service Agency Interest Of MoConservation EasementIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN