Imagine yourself perched on the high plateaus of the Andes, discovering Colombia’s paramos, an ecosystem as mysterious as it is vital. At these altitudes, between 3,000 and 5,000 meters, a unique world unfolds, playing a key role in the ecological balance. The paramos are much more than a simple expanse of landscape; they are natural reservoirs of water, essential for the surrounding rivers and ecosystems.
In this article, we delve into the secrets of these highlands, exploring the exceptional biodiversity hidden there, and more. Unique plants, rare birds and intriguing microclimates, the paramos are a nugget of diversity.
Paramos: a world apart
Paramos are heathland ecosystems found at high altitude in the Andes. Found only in Peru, Ecuador, Colombia and Venezuela, Colombia is home to around 50% of these paramos.
These unique environments lie between the treeline and the eternal snowline, at altitudes ranging from 3,000 to 5,000 metres above sea level. Despite their proximity to the equator, they boast cold climates more akin to the Scottish Highlands than the tropics, due to their significant elevation. This high altitude also gives them an austere, lunar character.
Described by the Spanish conquistadores as the “land of mist”, the paramos are subject to abundant winds and rainfall. With average annual temperatures fluctuating between 2 and 10°C, dropping more at night or in higher altitudes, these environments can take on a wild and seemingly unforgiving aspect.
The high altitude zone of the ecoregion receives more than 2,000 mm/year of precipitation, with humidity levels averaging 80%, as it lies within the Intertropical Convergence Zone (ITZ). The ITZ is influenced by low-pressure zones created near the equator, which produce large amounts of precipitation and strong winds. This slows down tree growth , giving rise to a tropical alpine meadow environment.
However, a gradual process spanning hundreds of thousands of years has given paramos features of remarkable ecological importance. This is reflected in their diversity of plant and animal life, significant carbon storage and crucial contribution to freshwater supply.
Paramos, sacred lands of the natives
The cultural importance of these environments is deep-rooted and ancient. A case in point are the paramos of Colombia, of crucial significance in the cosmology of the Muisca-Chibcha, pre-Columbian peoples who inhabited the central highlands of Colombia before the arrival of the Spanish. Nature and its preservation were central to their vision of the world and their role within it. According to their belief system, the paramos gave birth to their primordial mother figure, Bachué, which gave rise to a profound respect for these lands, with the paramo becoming the central location for sacred rituals.
The Chibcha didn’t live on the paramos because of their status as sacred lands, just as one wouldn’t live in a church, temple or mosque. Instead, they passed through these environments to engage in meditative and sacred rituals, such as that ofinitiation into adulthood. During this ritual, initiates were entrusted with the responsibility of caring for and protecting the natural world.
For these indigenous groups, nature surpassed even the family in importance. As the ultimate provider, the natural world was considered the most sacred entity. Humanity had to be in harmony with Mother Earth, respecting its riches rather than exploiting them. The concept of destroying natural areas to extract resources was totally incompatible with this perspective, as nature, the source of life, could not be destroyed without compromising the creation of wealth. Thus, the very idea of resource extraction was and remains inconceivable to Colombia’s indigenous groups, who have long campaigned for the protection of these lands.
Surprising paramo fauna
The skies of the paramos are dominated by two emblematic figures at the extremes. On one side, the Andean condorone of the world’s largest, with a 3.50m wingspan, and on the other, several species of hummingbird(including the helmeted hummingbird), the world’s smallest bird, weighing less than 20g! Soaring majestically in the updrafts, the condor represents grandeur and power, a true lord of the heights. Hummingbirds, on the other hand, add a vibrant, colorful touch to the often hazy skies, with their frenetic flapping of wings enabling them to move backwards.
L’spectacled bearalso known as the Andean bear (and the only bear in South America!), reveals itself as an enigmatic figure in the Colombian paramos, demonstrating a remarkable adaptation to extreme living conditions. Its dense coat and robust silhouette bear witness to its resilience in the face of cold and persistent winds. As an essential link in the paramo ecosystem, this omnivore plays a crucial role in regulating vegetation, contributing to the delicate balance between species.
The paramo has the richest high-mountain flora in the world, with ahigh level of endemism. There are some 70 species of mammals, 15 reptiles, 87 amphibians, 154 birds and 130 butterflies. Other charismatic mammals include the Andean mountain tapir, the Andean fox, the mountain coati, the long-tailed weasel and the guinea pig.
The ecoregion is also designated as an Endemic Bird Area (EBA) with many birds restricted to the paramo habitat, although few are strictly limited to this ecoregion. Near-endemic species include the black-coated errone and the red-fronted toui.
Extraordinary paramos flora
The paramo is not a forest, but a grassland at the highest altitude, with a distinct vegetation of tufted grasses, leathery shrubs, rosettes and cushion plants. The shrubs found in the paramo are microphyllous shrubs, which are particularly adapted to the ultraviolet rays at this altitude.
Paramos vegetation demonstrates a remarkable ability to mitigate the risk of flooding in times of water abundance, to cope with drought in times of water scarcity, and to minimize the impact of soil erosion. These ecosystems are home to an estimated 4,700 plant species, 60% of which are endemic, reinforcing their importance in terms of biological diversity and the preservation of ecological balances. Among the most remarkable specimens are :
- Frailejones: these emblematic plants of the paramos are recognizable by their large rosettes of downy leaves, which give them a unique appearance. Frailejones play a crucial role in regulating water flows and are essential to the preservation of the ecosystem.
- Puya de Paramo: this spectacular plant is distinguished by its long flowering stems, which can reach several metres in height. Their flowering is an impressive event and attracts many pollinators.
- Senecio: certain species of Senecio, also known as “ragwort”, add remarkable diversity to the flora of paramos. Their colorful flowers contribute to the vibrant palette of these ecosystems.
- Foxy-tailed lupines: these plants with their delicate, colorful flowers add a touch of beauty to paramos landscapes. They are adapted to acid soils and harsh weather conditions.
- Laurel trees: some native laurel trees thrive in paramos, making an important contribution to plant biodiversity. Their evergreen foliage is resistant to climatic variations.
Paramos flora play an essential role in maintaining the regional ecological balance, providing ecosystem services such as river regulation (supplying almost 70% of the country’s drinking water!), carbon retention and biodiversity preservation.
Paramos and conservation in Colombia
Currently, the construction of roads to previously inaccessible areas is one of the main threats to the paramos. Another source of concern is the expansion of livestock and agricultural activities, where paramos resources are exploited, and vegetation is deliberately burnt to improve the quality of fodder for domestic animals.
Climate change, amplified in the Andes, is leading to higher temperatures and lower rainfall in the páramos, which are warming up 1.6 times faster than the lowlands. This impact is clearly seen in Los Nevados National Park, where glaciers atop major volcanoes are melting rapidly. Once snowy “nevados” such as El Quindio have lost their glaciers, turning into “paramillos”. This warming is causing drought in the páramos, compromising sensitive ecosystems and exacerbating conservation challenges, including melting glaciers and reduced rainfall at high altitudes.
In Colombia, paramos enjoy protection, but implementation of the law and the number of dedicated staff remain a persistent challenge. The country has 37 páramo biogeographical complexes. They are spread across the Cordilleras Occidental, Central and Oriental, and the Sierra Nevada de Santa Marta. Colombia’s main protected natural areas include Chingaza National Nature Park, Sumapaz National Nature Park, El Cocuy National Nature Park, Iguaque Wildlife Sanctuary, Los Nevados National Nature Park, Puracé National Nature Park, Las Hermosas National Nature Park and Paramo de Ocetá.
