HydroBASINS lev08 watershed · #7080883190
Bassin de Río Tres Amigos
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 Carlos, Sarapiquí
Sub-basin area
459,2km²
Upstream area
459,2km²
Discharge
29,32m³/s
Mean elev.
223m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- San CarlosAlajuela · Costa Rica457.2 km²100.0% of basin
- SarapiquíHeredia · Costa Rica0.1 km²0.0% of basin
3 intersecting protected areas
Agua y Paz
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
456.48 km² overlap
Humedal Maquenque
IUCN Not ReportedWetland of International Importance (Ramsar Site)
44.29 km² overlap
Juan Castro Blanco
IUCN IINational Park
27.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 389 distinct species · 37 080 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Tres Amigos : 20 espèces reliées par 28 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 6 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°
25,3°C
Annual rain
3 456mm
Moisture idx (CMI)
0,54
Runoff
2 008mm/an
PET
1 573mm
AET
1 505mm
Mean slope
4,1°
Water table
98cm
Forest
73%
Crops
6%
Urban
6%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)