HydroBASINS lev08 watershed · #6080017970
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
419,5km²
Upstream area
10 321km²
Discharge
92,58m³/s
Mean elev.
33m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Arroyo Seco853 km²
- Bassin de Río Quequén Grande121 km²
2 dept-equivalent regions (GADM L2)
- 377.3 km²89.9% of basin
- 42.3 km²10.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
771 distinct species · 40 422 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 Quequén Grande : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 10 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°
13,6°C
Annual rain
868mm
Moisture idx (CMI)
-0,22
Runoff
280mm/an
PET
1 111mm
AET
733mm
Mean slope
0,2°
Water table
25cm
Forest
0%
Crops
78%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)