Wheeler
IUCN IVNational Wildlife Refuge · 1938
103 km²
County · USA
Madison
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
4 854
Observations
654 802
Area
2 103,5km²
Ecological tissue
Sample of 37 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 Madison : 26 espèces reliées par 79 interactions GloBI sur 4 types (connectance 10.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
79
Connectance
0.107
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
4 854 distinct species · 654 802 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,8°C
Annual rain
1 435mm
Warmest m°
30,9°C
Coldest m°
0,9°C
Elevation: 239 m on average (min 171 m, max 512 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
15,8°C
Annual rain
1 435mm
Warmest month
30,9°C
Coldest month
0,9°C
Mean alt.
239m
Min
171m
Max
512m
Std. dev.
57m
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
5,4
Org. C
21,5g/kg
Clay
26,5%
Sand
19,6%
Silt
53,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,4
Org. C
40,1g/kg
Clay
23,8%
Sand
20,8%
Silt
55,4%
5–15 cm
pH H₂O
5,5
Org. C
16,4g/kg
Clay
25,2%
Sand
20,0%
Silt
54,8%
15–30 cm
pH H₂O
5,4
Org. C
7,9g/kg
Clay
30,5%
Sand
18,0%
Silt
51,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest45.7%
Crops17.3%
Built-up2.9%
Bare soil0.7%
Other (grassland, water…)33.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 9 lakes · 34 rivers
Hydrology metrics for this exact territory
Stream length here
449,7km
Lake surface here
3,49km²
Basins crossed
8
Max stream order
7
Max drainage
67 646km²
Discharge in basins
2 928,7m³/s
Mean precip.
1 431mm/an
Mean T°
15,0°C
Moisture idx
0,09
Mean runoff
647mm/an
Mean elev. (basins)
250m
Watersheds crossing here
- Bassin de Flint Riversub-area1 450,2 km²overlap1134.78 km²54%
- Bassin de Huntsville Spring Branchsub-area415,5 km²overlap415.43 km²20%
- Bassin de Limestone Creeksub-area749,7 km²overlap158.44 km²8%
- Bassin de Tennessee Riversub-area255,3 km²overlap135.40 km²6%
- Bassin de Paint Rock Riversub-area1 191,3 km²overlap127.91 km²6%
- Bassin de Mill Creeksub-area117,3 km²overlap100.68 km²5%
- Bassin de Tennessee Riversub-area136,7 km²overlap20.16 km²1%
- Bassin de Tennessee Riversub-area37,6 km²overlap10.70 km²1%
Lakes (9, top by area)
- Lac 1061476area0,9 km²avg depth3.9 m
- Lac 1061433area0,5 km²avg depth3.0 m
- Lac 1061342area0,4 km²avg depth3.2 m
- Lac 1061343area0,3 km²avg depth2.7 m
- Lac 1061116area0,3 km²avg depth3.5 m
- Lac 1061383area0,3 km²avg depth3.8 m
- Lac 1061384area0,3 km²avg depth3.5 m
- Lac 1061167area0,2 km²avg depth4.5 m
- Lac 1061288area0,1 km²avg depth1.7 m
Rivers / streams (34, ord ≥ 4)
- Flint Riverord 7len here123.61 km60%total205 km
- Brier Fork Flint Riverord 3len here34.52 km99%total35 km
- Mountain Forkord 3len here30.88 km60%total51 km
- Indian Creekord 7len here29.87 km1%total2180 km
- Huntsville Spring Branchord 3len here27.19 km100%total27 km
- Tennessee Riverord 8len here25.96 km2%total1510 km
- Paint Rock Riverord 4len here23.29 km22%total104 km
- Limestone Creekord 4len here20.69 km16%total132 km
- Aldridge Creekord 1len here14.97 km100%total15 km
- Dry Creekord 8len here13.22 km1%total1337 km
- Denton Branchord 1len here12.76 km100%total13 km
- Mill Creekord 7len here9.12 km0%total1839 km
22 more river segmentssorted by Strahler order + length
- McDonald Creekord 2len here7.88 km28%total28 km
- Broglan Branchord 1len here6.88 km100%total7 km
- Betts Spring Branchord 1len here6.19 km100%total6 km
- Tyrone Creekord 1len here5.79 km63%total9 km
- Flint River Tributaireord 4len here5.75 km100%total6 km
- Bradford Creekord 2len here5.32 km100%total5 km
- Sherwood Creekord 1len here4.99 km100%total5 km
- Normal Branchord 2len here4.87 km100%total5 km
- Hurricane Creekord 4len here3.73 km1%total477 km
- Blackwell Runord 7len here3.65 km100%total4 km
- East Fork Pinhook Creekord 2len here3.62 km100%total4 km
- Knox Creekord 5len here3.46 km6%total60 km
- Barren Fork Creekord 1len here3.14 km100%total3 km
- Dallas Branchord 1len here3.13 km100%total3 km
- Love Ditchord 1len here3.02 km98%total3 km
- West Fork Flint Riverord 2len here2.91 km100%total3 km
- Pinhook Creekord 2len here2.72 km68%total4 km
- Leslie Branchord 2len here2.09 km47%total4 km
- West Fork Pinhook Creekord 1len here1.88 km100%total2 km
- Copperrun Branchord 1len here1.19 km29%total4 km
- Hardin Branchord 1len here0.95 km100%total1 km
- Little Limestone Creekord 2len here0.47 km2%total28 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
6,3nW
Built-up
289,0%
Pesticides
16,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas17
IUCN V · 13IUCN III · 2IUCN IV · 1IUCN Not Assigned · 1
Blevins Gap
IUCN VPreserve
4 km²
Wetlands Reserve Program (WRP), Marshall, AL
IUCN VReserve Program · 2003
4 km²
Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Jackson, AL
IUCN VWatershed Protection · 2009
4 km²
J.D. & Annie S. Hays
IUCN IIINature Preserve
2 km²
Monte Sano
IUCN VNature Preserve
2 km²
Complete list17 protected areas
- WheelerNational Wildlife RefugeIUCN IV1938103 km²
- Blevins GapPreserveIUCN V4 km²
- Wetlands Reserve Program (WRP), Marshall, ALReserve ProgramIUCN V20034 km²
- Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Jackson, ALWatershed ProtectionIUCN V20094 km²
- J.D. & Annie S. HaysNature PreserveIUCN III2 km²
- Monte SanoNature PreserveIUCN V2 km²
- Monte SanoPreserveIUCN V2 km²
- Wetlands Reserve Program (WRP), Madison, ALReserve ProgramIUCN V20112 km²
- Goldsmith-SchiffmanWildlife SanctuaryIUCN III2 km²
- Wade MountainPreserveIUCN V1 km²
- Esslinger HollowPrivate Conservation LandIUCN V20021 km²
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Madison, ALConservation EasementIUCN V1 km²
- Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201649A/D201631AConservation EasementIUCN Not Assigned20161 km²
- Harvest SquarePreserveIUCN V0 km²
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Marshall, ALConservation EasementIUCN V0 km²
- Weatherly MountainCity Green SpaceIUCN V0 km²
- Wetlands Reserve Program (WRP), Madison, ALReserve ProgramIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN