HydroBASINS lev08 watershed · #6080113860
Bassin de Río San Juan
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 5 administrative regions : Andes, Belén de Umbría, Jardín, Mistrató, Pueblo Rico
Sub-basin area
312,1km²
Upstream area
312,2km²
Discharge
20,45m³/s
Mean elev.
1 573m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 284.4 km²91.5% of basin
- 25.6 km²8.2% of basin
- 0.4 km²0.1% of basin
- 0.3 km²0.1% of basin
- 0.0 km²0.0% of basin
7 intersecting protected areas
Cuchilla Del San Juan
IUCN VIIntegrated Management Regional Districts
123.69 km² overlap
Civil Society Nature Reserve
6.57 km² overlap
Arrayanal
IUCN VIIntegrated Management Regional Districts
0.63 km² overlap
Farallones del Citará
IUCN VIRegional Protective Forest Reserves
0.62 km² overlap
Cuchilla Jardin Tamesis
IUCN VIIntegrated Management Regional Districts
0.34 km² overlap
Cuenca Hidrográfica Del Río San Juan
IUCN Not ApplicableWatershed
0.06 km² overlap
Civil Society Nature Reserve
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 487 distinct species · 18 934 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 San Juan : 15 espèces reliées par 13 interactions GloBI sur 3 types (connectance 8.5%, filtre Serrano α=0.2). 3 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°
19,5°C
Annual rain
2 929mm
Moisture idx (CMI)
0,49
Runoff
2 081mm/an
PET
1 460mm
AET
1 457mm
Mean slope
22,9°
Water table
646cm
Forest
38%
Crops
14%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)