HydroBASINS lev08 watershed · #6080705580
Bassin de Río Negro
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 : Fuerte Olimpo, Mayor Pablo Lagerenza
Sub-basin area
4 099,8km²
Upstream area
4 100,1km²
Discharge
10,32m³/s
Mean elev.
144m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 3152.3 km²77.1% of basin
- 935.5 km²22.9% of basin
5 intersecting protected areas
Reserva de la Biosfera del Chaco
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
3558.65 km² overlap
Reserva de la Biosfera del Chaco
IUCN Not ReportedBiosphere Reserve-National & UNESCO-MAB
3558.65 km² overlap
Defensores del Chaco
IUCN IINational Park
707.48 km² overlap
Rio Negro
IUCN Not ReportedWetland of International Importance (Ramsar Site)
24.33 km² overlap
Rio Negro
IUCN IINational Park Reservations
24.33 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
543 distinct species · 4 517 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Negro : 26 espèces + 1 bulle famille, 19 interactions GloBI documentées sur 3 types (connectance 5.4%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
25,0°C
Annual rain
790mm
Moisture idx (CMI)
-0,57
Runoff
26mm/an
PET
1 829mm
AET
667mm
Mean slope
0,0°
Water table
9cm
Forest
72%
Crops
2%
Urban
0%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)