HydroBASINS lev08 watershed · #7080740350
Bassin de Angelina 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 : Angelina, Jasper, Nacogdoches, San Augustine
Sub-basin area
516,8km²
Upstream area
7 815,8km²
Discharge
75,97m³/s
Mean elev.
68m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Angelina River2468 km²
- Bassin de Attoyac Bayou1740 km²
4 dept-equivalent regions (GADM L2)
- 248.2 km²48.1% of basin
- 238.0 km²46.1% of basin
- Jasper27.7 km²5.4% of basin
- 2.4 km²0.5% of basin
1 intersecting protected areas
Turkey Hill
IUCN IbWilderness
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 222 distinct species · 25 840 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Angelina River : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 12 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°
18,5°C
Annual rain
1 259mm
Moisture idx (CMI)
-0,15
Runoff
346mm/an
PET
1 475mm
AET
1 045mm
Mean slope
1,1°
Water table
94cm
Forest
60%
Crops
0%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)