HydroBASINS lev08 watershed · #6080762240
Bassin de Arroyo de Chorcan
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 4 administrative regions : Humahuaca, Iruya, Tilcara, Valle Grande
Sub-basin area
564,1km²
Upstream area
564,1km²
Discharge
2,35m³/s
Mean elev.
4 039m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 558.0 km²99.2% of basin
- 1.8 km²0.3% of basin
- 1.7 km²0.3% of basin
- 1.3 km²0.2% of basin
2 intersecting protected areas
Quebrada de Humahuaca
IUCN VProtected Landscape
551.89 km² overlap
Las Yungas
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
355 distinct species · 4 505 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 Arroyo de Chorcan : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 11 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°
6,7°C
Annual rain
228mm
Moisture idx (CMI)
-0,82
Runoff
175mm/an
PET
1 253mm
AET
197mm
Mean slope
15,9°
Water table
698cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)