HydroBASINS lev08 watershed · #6080869560
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 3 administrative regions : Caucete, San Martín, Veinticinco de Mayo
Sub-basin area
1 003,3km²
Upstream area
1 003,3km²
Discharge
0,08m³/s
Mean elev.
1 068m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 961.2 km²95.9% of basin
- 38.5 km²3.8% of basin
- 2.8 km²0.3% of basin
1 intersecting protected areas
Valle Fértil
IUCN VIMultiple Use Reserve
641.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
67 distinct species · 198 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 : 23 espèces reliées par 26 interactions GloBI sur 2 types (connectance 8.7%, 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°
15,8°C
Annual rain
200mm
Moisture idx (CMI)
-0,86
Runoff
2mm/an
PET
1 482mm
AET
169mm
Mean slope
8,1°
Water table
670cm
Forest
0%
Crops
1%
Urban
0%
Protected
77%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)