HydroBASINS lev08 watershed · #7080001220
Bassin de Río Grande de Térraba
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 : Buenos Aires, Golfito, Osa
Sub-basin area
619,5km²
Upstream area
5 014,6km²
Discharge
360,43m³/s
Mean elev.
379m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Río Limón256 km²
- Bassin de Río Grande de Térraba14 km²
3 dept-equivalent regions (GADM L2)
- OsaPuntarenas · Costa Rica361.4 km²58.6% of basin
- Buenos AiresPuntarenas · Costa Rica255.6 km²41.4% of basin
- GolfitoPuntarenas · Costa Rica0.0 km²0.0% of basin
3 intersecting protected areas
La Amistad
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
99.92 km² overlap
Terraba-Sierpe
IUCN Not ReportedWetland of International Importance (Ramsar Site)
36.71 km² overlap
Terraba-Sierpe
IUCN IIWetland
32.96 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 290 distinct species · 37 556 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 Grande de Térraba : 19 espèces reliées par 32 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 8 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°
24,7°C
Annual rain
3 099mm
Moisture idx (CMI)
0,43
Runoff
2 313mm/an
PET
1 717mm
AET
1 450mm
Mean slope
11,5°
Water table
370cm
Forest
61%
Crops
8%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)