HydroBASINS lev08 watershed · #6080041220
Bassin de Arroyo Pajalta
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 : San Antonio, Valcheta
Sub-basin area
2 285,8km²
Upstream area
2 286,2km²
Discharge
2,61m³/s
Mean elev.
343m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 2233.3 km²97.6% of basin
- 55.5 km²2.4% of basin
1 intersecting protected areas
Meseta de Somuncurá
IUCN VIProtected Nature Area
1060.82 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
238 distinct species · 1 035 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 Arroyo Pajalta : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 7 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
226mm
Moisture idx (CMI)
-0,82
Runoff
24mm/an
PET
1 248mm
AET
196mm
Mean slope
1,4°
Water table
499cm
Forest
1%
Crops
0%
Urban
0%
Protected
61%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)