HydroBASINS lev08 watershed · #6080748250
Bassin de Río Grande de Tarija
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 3 administrative regions across 2 countries : Arce, General José de San Martín, Gran Chaco
Sub-basin area
510km²
Upstream area
8 257,9km²
Discharge
81,39m³/s
Mean elev.
898m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Pampa Grande1099 km²
- Bassin de Río Chiquiaca934 km²
3 dept-equivalent regions (GADM L2)
- 254.6 km²50.0% of basin
- 254.1 km²49.9% of basin
- 0.0 km²0.0% of basin
2 intersecting protected areas
Tariquía
IUCN Not ReportedNational Flora and Fauna Reserve
233.34 km² overlap
Multiple Use Nature Reserve
0.49 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
232 distinct species · 616 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Río Grande de Tarija : 21 espèces reliées par 41 interactions GloBI sur 6 types (connectance 9.4%, 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°
20,5°C
Annual rain
1 035mm
Moisture idx (CMI)
-0,37
Runoff
373mm/an
PET
1 650mm
AET
875mm
Mean slope
15,5°
Water table
492cm
Forest
100%
Crops
1%
Urban
0%
Protected
46%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)