HydroBASINS lev08 watershed · #7080724780
Bassin de Trinity River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Anderson, Freestone, Henderson, Navarro
Sub-basin area
449,2km²
Upstream area
25 582,1km²
Discharge
135,98m³/s
Mean elev.
103m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Trinity River1863 km²
- Bassin de Walnut Creek157 km²
4 dept-equivalent regions (GADM L2)
- Henderson185.9 km²41.4% of basin
- Anderson140.8 km²31.4% of basin
- 87.1 km²19.4% of basin
- 35.0 km²7.8% of basin
3 intersecting protected areas
Richland Creek
IUCN VWildlife Management Area
34.37 km² overlap
Reserve Program
2.01 km² overlap
Gus Engeling
IUCN VWildlife Management Area
0.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 739 distinct species · 100 726 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Trinity River : 27 espèces reliées par 53 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
18,9°C
Annual rain
1 008mm
Moisture idx (CMI)
-0,31
Runoff
259mm/an
PET
1 472mm
AET
852mm
Mean slope
0,8°
Water table
67cm
Forest
24%
Crops
28%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)