HydroBASINS lev08 watershed · #7080751440
Bassin de Pedernales 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 : Blanco, Burnet, Hays, Travis
Sub-basin area
145,7km²
Upstream area
3 297,4km²
Discharge
15,81m³/s
Mean elev.
290m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Flat Creek250 km²
- Bassin de Cypress Creek208 km²
4 dept-equivalent regions (GADM L2)
- 103.9 km²71.4% of basin
- 25.5 km²17.5% of basin
- 10.9 km²7.5% of basin
- 5.3 km²3.7% of basin
2 intersecting protected areas
Hamilton Pool
IUCN VPreserve
0.91 km² overlap
Balcones Canyonlands
IUCN VPreserve
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 867 distinct species · 146 221 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Pedernales River : 22 espèces reliées par 67 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 11 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°
19,1°C
Annual rain
807mm
Moisture idx (CMI)
-0,46
Runoff
164mm/an
PET
1 484mm
AET
683mm
Mean slope
3,3°
Water table
359cm
Forest
62%
Crops
12%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)