HydroBASINS lev08 watershed · #7080048990
Bassin de Santa Gertrudis Creek
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 : Duval, Jim Wells, Kleberg, Nueces
Sub-basin area
2 484,9km²
Upstream area
2 484,9km²
Discharge
2,31m³/s
Mean elev.
90m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- Duval1092.2 km²44.0% of basin
- 649.0 km²26.2% of basin
- 565.9 km²22.8% of basin
- 172.8 km²7.0% of basin
1 intersecting protected areas
Mesquite Brushland Fee
IUCN VPrivate Conservation Land
2.88 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 275 distinct species · 267 496 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 Santa Gertrudis Creek : 23 espèces reliées par 52 interactions GloBI sur 3 types (connectance 10.5%, filtre Serrano α=0.2). 9 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°
22,0°C
Annual rain
652mm
Moisture idx (CMI)
-0,59
Runoff
44mm/an
PET
1 604mm
AET
551mm
Mean slope
0,3°
Water table
61cm
Forest
15%
Crops
25%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)