Bois D'arc
IUCN VState Wildlife Management Area
24 km²
County · USA
Hempstead
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
2 055
Observations
46 988
Area
1 920,8km²
Ecological tissue
Sample of 40 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 Hempstead : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
77
Connectance
0.099
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 055 distinct species · 46 988 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
17,5°C
Annual rain
1 391mm
Warmest m°
33,5°C
Coldest m°
2,5°C
Elevation: 105 m on average (min 71 m, max 164 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
17,5°C
Annual rain
1 391mm
Warmest month
33,5°C
Coldest month
2,5°C
Mean alt.
105m
Min
71m
Max
164m
Std. dev.
18m
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
17,8g/kg
Clay
25,2%
Sand
32,5%
Silt
42,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
31,0g/kg
Clay
22,6%
Sand
34,0%
Silt
43,4%
5–15 cm
pH H₂O
5,6
Org. C
14,8g/kg
Clay
23,6%
Sand
33,5%
Silt
42,9%
15–30 cm
pH H₂O
5,6
Org. C
7,5g/kg
Clay
29,3%
Sand
30,0%
Silt
40,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest68.3%
Crops8.8%
Built-up0.3%
Bare soil0.3%
Other (grassland, water…)22.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 6 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
129,9km
Lake surface here
22,20km²
Basins crossed
7
Max stream order
6
Max drainage
137 093km²
Discharge in basins
295,9m³/s
Mean precip.
1 325mm/an
Mean T°
16,7°C
Moisture idx
-0,03
Max snow
1%
Mean runoff
444mm/an
Mean elev. (basins)
123m
Watersheds crossing here
- Bassin de Red Riversub-area1 975,2 km²overlap611.35 km²32%
- Bassin de Little Missouri Riversub-area2 015 km²overlap556.93 km²29%
- Bassin de Little Missouri Riversub-area633,5 km²overlap278.96 km²15%
- Basin #93660sub-area372 km²overlap154.97 km²8%
- Basin #93740sub-area208,9 km²overlap138.36 km²7%
- Bassin de Little Riversub-area220,9 km²overlap135.86 km²7%
- Bassin de Saline Riversub-area1 427,1 km²overlap44.36 km²2%
Lakes (6, top by area)
Rivers / streams (9, ord ≥ 4)
- Little Missouri Riverord 5len here40.58 km2%total1824 km
- Yellow Creekord 7len here23.71 km6%total412 km
- Red Riverord 7len here18.43 km1%total2600 km
- Little Riverord 7len here15.81 km1%total1263 km
- Caruse Creekord 1len here9.01 km100%total9 km
- Vickers Creekord 1len here6.94 km77%total9 km
- Arnold Creekord 4len here6.69 km43%total16 km
- Terre Rouge Creekord 2len here6.32 km100%total6 km
- Little Terre Rouge Creekord 2len here2.46 km83%total3 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
35,0%
Pesticides
5,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas13
IUCN V · 12IUCN Not Assigned · 1
Rick Evans/grandview Prairie
IUCN VState Wildlife Management Area
20 km²
Wetlands Reserve Program (WRP), Little River, AR
IUCN VReserve Program · 1998
18 km²
Hope Upland
IUCN VState Wildlife Management Area
9 km²
Wetlands Reserve Program (WRP), Hempstead, AR
IUCN VReserve Program · 1995
7 km²
Nacatoch Ravines
IUCN Not AssignedNatural Area
7 km²
Complete list13 protected areas
- Bois D'arcState Wildlife Management AreaIUCN V24 km²
- Rick Evans/grandview PrairieState Wildlife Management AreaIUCN V20 km²
- Wetlands Reserve Program (WRP), Little River, ARReserve ProgramIUCN V199818 km²
- Hope UplandState Wildlife Management AreaIUCN V9 km²
- Wetlands Reserve Program (WRP), Hempstead, ARReserve ProgramIUCN V19957 km²
- Nacatoch RavinesNatural AreaIUCN Not Assigned7 km²
- Nacatoch Ravines FeePrivate Conservation LandIUCN V20064 km²
- OzanState Wildlife Management AreaIUCN V2 km²
- Little RiverState Wildlife Management AreaIUCN V2 km²
- Grassland Reserve Program (GRP), Hempstead, ARReserve ProgramIUCN V20132 km²
- Nacatoch Ravines FeePrivate Conservation LandIUCN V20091 km²
- Grandview Blackland PrairiePrivate Conservation LandIUCN V19981 km²
- BlevinsState Wildlife Management AreaIUCN V1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN