HydroBASINS lev08 watershed · #7080883160
Bassin de Río Toro
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 9 administrative regions : Alajuela, Grecia, Naranjo, Poás, Río Cuarto +4
Sub-basin area
624,4km²
Upstream area
624,4km²
Discharge
43,33m³/s
Mean elev.
545m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Río CuartoAlajuela · Costa Rica243.9 km²39.2% of basin
- SarapiquíHeredia · Costa Rica182.7 km²29.4% of basin
- SarchíAlajuela · Costa Rica88.6 km²14.3% of basin
- San CarlosAlajuela · Costa Rica87.5 km²14.1% of basin
- ZarceroAlajuela · Costa Rica12.5 km²2.0% of basin
- AlajuelaAlajuela · Costa Rica4.8 km²0.8% of basin
- PoásAlajuela · Costa Rica1.2 km²0.2% of basin
- GreciaAlajuela · Costa Rica0.6 km²0.1% of basin
1 moreFull L2 list
- Naranjo0.0 km² · 0.0%
9 intersecting protected areas
Agua y Paz
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
513.81 km² overlap
Cordillera Volcánica Central
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
137.90 km² overlap
Humedal Maquenque
IUCN Not ReportedWetland of International Importance (Ramsar Site)
60.20 km² overlap
Juan Castro Blanco
IUCN IINational Park
54.65 km² overlap
Rio Toro
IUCN IVProtected Zone
31.62 km² overlap
Volcan Poas
IUCN IINational Park
27.66 km² overlap
Bosque Alegre
IUCN VINational Wildlife Refuge
8.39 km² overlap
Grecia
IUCN VIForest Reserve
0.28 km² overlap
El Chayote
IUCN IVProtected Zone
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 774 distinct species · 193 874 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 Toro : 9 espèces reliées par 10 interactions GloBI sur 2 types (connectance 15.2%, 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°
23,6°C
Annual rain
3 666mm
Moisture idx (CMI)
0,59
Runoff
2 176mm/an
PET
1 503mm
AET
1 474mm
Mean slope
6,2°
Water table
171cm
Forest
61%
Crops
5%
Urban
2%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)