HydroBASINS lev08 watershed · #6080017980
Bassin de Arroyo La Reserva
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 : Necochea, San Cayetano
Sub-basin area
1 390km²
Upstream area
1 390km²
Discharge
0,15m³/s
Mean elev.
42m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1376.5 km²99.0% of basin
- 1.2 km²0.1% of basin
1 intersecting protected areas
Arroyo Zabala
IUCN VIMultiple Use Nature Reserve
5.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
250 distinct species · 25 259 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Arroyo La Reserva : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 8.7%, 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°
13,7°C
Annual rain
832mm
Moisture idx (CMI)
-0,27
Runoff
276mm/an
PET
1 134mm
AET
707mm
Mean slope
0,2°
Water table
19cm
Forest
0%
Crops
78%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)