Costa Rica Species
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Subalpine Paramo
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Subalpine Paramo

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Anonymous Curator

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Under Review

Last modified by

Julia Trouin

Detailed Description

The subalpine paramo is a unique and fragile ecosystem that crowns the highest peaks of the Talamanca Mountain Range and some central volcanoes. It is characterized by low-stature vegetation adapted to extreme conditions of ultraviolet radiation, strong winds, and drastic temperature fluctuations that can range from nightly freezing to intense midday heat. Dominated by leathery shrubs, grasses, and the iconic dwarf bamboo (Chusquea subtessellata), the paramo acts as a vital water sponge for the lowlands. It is a center of evolutionary endemism where flora and fauna species have developed unique morphological adaptations to survive in these biological islands isolated by altitude.

Climate Metrics

Altitude (m)Elevation above sea level in metres. Higher altitude means lower temperatures and pressure, shaping which species can survive.3,000 – 3,820 m
Precipitation (mm/year)Total annual rainfall in millimetres. A key driver of vegetation type — tropical rainforests typically exceed 2 000 mm/year.1,500 – 3,000 mm
Temperature (°C)Average annual temperature range in degrees Celsius. Together with precipitation, it defines the Holdridge life zone and resident species.-2 – 12 °C

Basic Identification

Habitat TypeBroad ecological classification: Terrestrial (land-based), Aquatic (water-based), or Mixed (both).Terrestrial
Holdridge Life ZoneHoldridge Life Zone System — classifies world climates into discrete zones based on biotemperature, annual precipitation, and humidity. Developed by Leslie Holdridge in 1947.Subalpine Rain Páramo

Locations in Costa RicaGeographic regions of Costa Rica where this habitat or species has been documented.

Talamanca Highlands (Chirripó)Central Volcanic Highlands

Best Season to VisitBest times of year to visit or observe this area at its most biodiverse.

December – March

Climate & EnvironmentTypical weather patterns, temperature ranges, and seasonal rainfall affecting this location.

Tropical alpine climate. Characterized by high daily thermal oscillation ('summer every day, winter every night'). Temperatures can drop to -2°C or -4°C on clear early mornings, with presence of frost. Solar radiation is extremely high.

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