HydroBASINS lev08 watershed · #7080883290

Bassin de Río Peñas Blancas

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 8 administrative regions : Montes de Oro, Naranjo, Puntarenas, San Carlos, San Ramón +3

Pfafstetter: 75380404

Sub-basin area

1 508,5km²

Upstream area

1 508,6km²

Discharge

83,22m³/s

Mean elev.

710m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río San Carlos302 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

8 dept-equivalent regions (GADM L2)

San Carlos
Alajuela · Costa Rica
762.9 km²
50.8% of basin
San Ramón
Alajuela · Costa Rica
570.9 km²
38.0% of basin
Zarcero
Alajuela · Costa Rica
144.0 km²
9.6% of basin
Naranjo
Alajuela · Costa Rica
20.3 km²
1.4% of basin
Montes de Oro
Puntarenas · Costa Rica
2.2 km²
0.1% of basin
Puntarenas
Puntarenas · Costa Rica
1.2 km²
0.1% of basin
Sarchí
Alajuela · Costa Rica
0.5 km²
0.0% of basin
Tilarán
Guanacaste · Costa Rica
0.4 km²
0.0% of basin

9 intersecting protected areas

Agua y Paz
IUCN Not Applicable
UNESCO-MAB Biosphere Reserve
1183.64 km² overlap
Cordillera Volcánica Central
IUCN Not Applicable
UNESCO-MAB Biosphere Reserve
357.39 km² overlap
Arenal Monteverde
IUCN IV
Protected Zone
191.37 km² overlap
Juan Castro Blanco
IUCN II
National Park
60.35 km² overlap
Monteverde Cloud Forest Preserve
IUCN VI
Protected areas with sustainable use of natural resources
27.55 km² overlap
Arenal
IUCN II
National Park
13.14 km² overlap
El Chayote
IUCN IV
Protected Zone
4.41 km² overlap
Cuenca Embalse Arenal
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
2.62 km² overlap
Rio Toro
IUCN IV
Protected Zone
0.41 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

10 677 distinct species · 1 592 913 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Río Peñas Blancas : 8 espèces reliées par 10 interactions GloBI sur 2 types (connectance 15.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.151

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

22,8°C

Annual rain

3 252mm

Moisture idx (CMI)

0,52

Runoff

1 725mm/an

PET

1 517mm

AET

1 395mm

Mean slope

8,9°

Water table

220cm

Forest

72%

Crops

11%

Urban

Protected

18%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)