HydroBASINS lev08 watershed · #7080777790
Bassin de Old Nueces River Channel
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 2 administrative regions : La Salle, McMullen
Sub-basin area
45,1km²
Upstream area
20 260,2km²
Discharge
14,06m³/s
Mean elev.
90m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nueces River481 km²
- Bassin de Ygnacio Creek382 km²
2 dept-equivalent regions (GADM L2)
- 36.3 km²80.6% of basin
- La Salle8.7 km²19.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
41 distinct species · 92 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Old Nueces River Channel : 20 espèces reliées par 33 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 2 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°
21,8°C
Annual rain
576mm
Moisture idx (CMI)
-0,66
Runoff
22mm/an
PET
1 681mm
AET
486mm
Mean slope
0,2°
Water table
74cm
Forest
82%
Crops
8%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)