HydroBASINS lev08 watershed · #6080125450
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 3 administrative regions : Bajo Baudó, Istmina, Medio San Juan
Sub-basin area
305km²
Upstream area
9 447,5km²
Discharge
1 132,29m³/s
Mean elev.
53m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río San Juan537 km²
- Bassin de Río Sipí8 km²
3 dept-equivalent regions (GADM L2)
- 168.9 km²55.6% of basin
- 132.9 km²43.8% of basin
- 1.9 km²0.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
380 distinct species · 1 012 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 2 types (connectance 10.8%, filtre Serrano α=0.2). 4 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°
26,1°C
Annual rain
6 437mm
Moisture idx (CMI)
0,77
Runoff
5 591mm/an
PET
1 475mm
AET
1 475mm
Mean slope
2,9°
Water table
82cm
Forest
60%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)