In the high moors of the Ecuadorian Andes, the modest mountain ponds reveal themselves as crucial actors in the global climatic balance.
A study led by the University of North Carolina and the Universidad San Francisco de Quito demonstrated that these bodies of water, despite their small size, release significant amounts of carbon dioxide and methane.
The study, conducted in the Cayambe Coca National Park, analyzed eleven ponds and a wetland over a full year. The results surprised the scientific community: the emissions from some ponds exceed those of larger lakes and wetlands located in the same area.
This finding challenges the traditional idea that the climatic impact depends on the size of the body of water. The researchers point out that temperature, elevation, and the connection between soil and water are the factors that most influence the release of greenhouse gases.
Factors explaining pond emissions
The monitored ponds showed a great variability in carbon emissions. During the rainy season, carbon dioxide and methane values spiked, while in the dry months some ponds shrank or dried up completely.
Analyses revealed that water temperature is a key indicator of methane levels, while elevation influences carbon dioxide concentrations. Additionally, the interaction between groundwater and peat-rich soils favors the release of carbon accumulated over thousands of years.
The research warns that the exclusion of these small ecosystems in global climate models creates an information gap, underestimating their contribution to global warming. Incorporating them will allow for more precise strategies to mitigate emissions in tropical mountain regions.
The Andean páramo and its role in the carbon cycle
The Andean páramo, which extends from Venezuela to northern Peru, is one of the most fragile and valuable ecosystems on the planet. Its peat soils are important natural carbon reservoirs, formed by the accumulation of organic matter in cold and humid environments.
However, the same conditions that facilitate carbon capture also favor its release when the environmental balance is altered. Human activity, rising temperatures, and water variability are changing the natural dynamics of these soils and their bodies of water.
Understanding the functioning of these systems is key to accurately assessing the global carbon balance and anticipating the effects of climate change on high mountain ecosystems, essential for freshwater supply and regional climatic regulation.
High mountain ponds and their ecological role
Beyond their role in gas emissions, high mountain ponds fulfill essential ecological functions. They act as water regulators, storing and gradually releasing water to rivers and wetlands in lower areas.
These small bodies of water are also refuges for unique species adapted to extreme conditions. They are home to amphibians, insects, and aquatic plants that are part of complex trophic chains and maintain the biodiversity of the páramo.
Additionally, the ponds contribute to filtering sediments and nutrients, enhancing the quality of water that feeds human communities and surrounding ecosystems. Their preservation, therefore, is not only a scientific matter but also an ecological and social priority.
Science and conservation for a sustainable future
The discovery of the impact of high mountain ponds redefines how science understands the carbon cycle in tropical regions. Recognizing their importance will allow improving conservation and water management policies, as well as global strategies for climate mitigation.
The páramos, considered “water factories” for their ability to retain moisture and generate flows, face increasing pressure from climate change and human activities. Protecting them is essential to maintain environmental balance and ensure the well-being of millions of people who depend on their resources.
In this context, each pond, no matter how small it may seem, becomes a vital piece of the global climate puzzle, reminding us that major environmental changes can originate in the planet’s most discreet ecosystems.
