Tawakoni
IUCN VWildlife Management Area
9 km²
County · USA
Van Zandt
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
2 545
Observations
316 069
Area
2 237,4km²
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 Van Zandt : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
42
Interactions affichées
77
Connectance
0.089
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
2 545 distinct species · 316 069 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
18,7°C
Annual rain
1 134mm
Warmest m°
34,4°C
Coldest m°
4,1°C
Elevation: 145 m on average (min 101 m, max 192 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
18,7°C
Annual rain
1 134mm
Warmest month
34,4°C
Coldest month
4,1°C
Mean alt.
145m
Min
101m
Max
192m
Std. dev.
15m
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
5,8
Org. C
16,8g/kg
Clay
19,3%
Sand
50,2%
Silt
30,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,8
Org. C
32,8g/kg
Clay
18,9%
Sand
50,4%
Silt
30,7%
5–15 cm
pH H₂O
5,7
Org. C
10,1g/kg
Clay
18,1%
Sand
51,1%
Silt
30,8%
15–30 cm
pH H₂O
5,8
Org. C
7,5g/kg
Clay
20,8%
Sand
49,1%
Silt
30,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest40.1%
Crops14.0%
Built-up0.6%
Bare soil0.3%
Other (grassland, water…)44.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 12 lakes · 16 rivers
Hydrology metrics for this exact territory
Stream length here
221,7km
Lake surface here
16,88km²
Basins crossed
12
Max stream order
4
Max drainage
3 752km²
Discharge in basins
49,2m³/s
Mean precip.
1 053mm/an
Mean T°
18,0°C
Moisture idx
-0,26
Mean runoff
313mm/an
Mean elev. (basins)
144m
Watersheds crossing here
- Bassin de Battle Creeksub-area737,7 km²overlap393.82 km²18%
- Bassin de Mill Creeksub-area332,6 km²overlap332.45 km²15%
- Bassin de Cedar Creeksub-area731,4 km²overlap250.16 km²11%
- Bassin de Sabine Riversub-area244 km²overlap243.71 km²11%
- Bassin de Sabine Riversub-area568,2 km²overlap235.66 km²11%
- Bassin de Neches Riversub-area715,6 km²overlap228.39 km²10%
- Bassin de Lacy Forksub-area287,3 km²overlap204.59 km²9%
- Bassin de Cedar Creeksub-area397,3 km²overlap127.57 km²6%
- Bassin de Sabine Riversub-area512,2 km²overlap108.07 km²5%
Lakes (12, top by area)
- Lake Tawakoniarea137,7 km²avg depth14.9 m
- Lake #13644area1,1 km²avg depth2.2 m
- Lac 1064194area0,9 km²avg depth3.6 m
- Lac 1064015area0,9 km²avg depth3.2 m
- Lac 1063976area0,6 km²avg depth3.2 m
- Lac 1063762area0,2 km²avg depth2.4 m
- Lac 1063719area0,2 km²avg depth2.6 m
- Lac 1063740area0,2 km²avg depth2.6 m
- Lac 1063694area0,1 km²avg depth2.1 m
Rivers / streams (16, ord ≥ 4)
- Sabine Riverord 6len here42.20 km4%total1084 km
- Neches Riverord 6len here39.95 km5%total815 km
- Mill Creekord 2len here32.44 km33%total98 km
- McBee Creekord 2len here28.85 km100%total29 km
- Dry Creekord 4len here21.05 km33%total64 km
- Cedar Creekord 6len here13.43 km11%total127 km
- Lacy Forkord 2len here10.45 km34%total31 km
- Caney Creekord 4len here9.74 km14%total68 km
- Allen Creekord 2len here9.36 km85%total11 km
- Wolf Creekord 2len here7.08 km15%total46 km
- Battle Creekord 1len here2.63 km23%total11 km
- North Twin Creekord 2len here1.54 km15%total11 km
4 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,0nW
Built-up
62,4%
Pesticides
23,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2
Wetlands Reserve Program (WRP), Van Zandt, TX
IUCN VReserve Program · 2002
1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN