HydroBASINS lev08 watershed · #6080931220
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
121,4km²
Upstream area
9 048km²
Discharge
81m³/s
Mean elev.
43m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- 64.8 km²53.3% of basin
- 56.7 km²46.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
145 distinct species · 2 625 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 7.1%, 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°
13,6°C
Annual rain
863mm
Moisture idx (CMI)
-0,23
Runoff
280mm/an
PET
1 125mm
AET
732mm
Mean slope
0,3°
Water table
20cm
Forest
1%
Crops
77%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)