HydroBASINS lev08 watershed · #6080930130
Bassin de Río Quequén Grande
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 : Lobería, Necochea
Sub-basin area
53km²
Upstream area
8 275,8km²
Discharge
73,9m³/s
Mean elev.
64m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arroyo Quequén Chico1474 km²
- Bassin de Río Quequén Grande1342 km²
2 dept-equivalent regions (GADM L2)
- 35.7 km²67.3% of basin
- 17.3 km²32.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
153 distinct species · 3 697 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 Quequén Grande : 20 espèces reliées par 37 interactions GloBI sur 3 types (connectance 9.1%, 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°
13,7°C
Annual rain
849mm
Moisture idx (CMI)
-0,26
Runoff
279mm/an
PET
1 145mm
AET
722mm
Mean slope
0,4°
Water table
22cm
Forest
0%
Crops
69%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)