HydroBASINS lev08 watershed · #7080001620
Bassin de Río Tenorio
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 6 administrative regions : Abangares, Bagaces, Cañas, Guatuso, Tilarán +1
Sub-basin area
2 067,8km²
Upstream area
2 067,9km²
Discharge
83,58m³/s
Mean elev.
296m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- Bagaces924.1 km²44.9% of basin
- Cañas664.1 km²32.2% of basin
- Tilarán279.2 km²13.6% of basin
- 187.1 km²9.1% of basin
- UpalaAlajuela · Costa Rica4.1 km²0.2% of basin
- GuatusoAlajuela · Costa Rica0.8 km²0.0% of basin
13 intersecting protected areas
Agua y Paz
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
176.33 km² overlap
Palo Verde
IUCN Not ReportedWetland of International Importance (Ramsar Site)
56.13 km² overlap
Palo Verde
IUCN IINational Park
47.68 km² overlap
Volcan Tenorio
IUCN IINational Park
23.36 km² overlap
National Park
19.08 km² overlap
Tenorio
IUCN IVProtected Zone
10.27 km² overlap
Lomas de Barbudal
IUCN IaBiological Reserve
7.75 km² overlap
Cuenca Embalse Arenal
IUCN Not ReportedWetland of International Importance (Ramsar Site)
6.73 km² overlap
Area de Conservación Guanacaste
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
5.06 km² overlap
4 more protected areassorted by overlap area
Rincon de la Vieja
IUCN IINational Park
4.89 km² overlap
Cipanci
IUCN VINational Wildlife Refuge
4.03 km² overlap
Taboga
IUCN VIForest Reserve
2.97 km² overlap
Cuenca del Rio Abangares
IUCN IVProtected Zone
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 717 distinct species · 415 272 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Tenorio : 24 espèces reliées par 31 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 7 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°
25,1°C
Annual rain
2 044mm
Moisture idx (CMI)
0,14
Runoff
1 234mm/an
PET
1 674mm
AET
1 218mm
Mean slope
4,9°
Water table
154cm
Forest
33%
Crops
39%
Urban
1%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)