La protection of native flora and the conservation of endangered species It is now a central concern for scientists, government agencies, and citizens interested in environmental protection. The latest studies and technological advances allow us to better understand why so many native plant species are in a vulnerable situation, as well as to develop tools for their monitoring and recovery.
South American ecosystems, especially in regions such as central and southern Chile, have undergone profound changes following the extinction of large animals, such as mastodons, thousands of years ago. These changes have consequences that are still felt in the ability of many plants to survive and reproduce.
The extinction of megafauna and its impact on native flora
One of the most relevant scientific discoveries in the last decade This has been confirmation that the disappearance of giant animals like mastodons continues to directly affect native South American flora. An international team of experts, led by the University of O'Higgins and the IPHES-CERCA in Tarragona, has recently published fossil evidence showing how these animals played a key role in seed dispersal.
Through the analysis of 96 fossil teeth Found between Los Vilos and the island of Chiloé, researchers have discovered remains of starches and plant tissues from fleshy fruits, confirming that mastodons frequently consumed this type of food and, in turn, helped disperse seeds over large areas. This ecological function, essential for forest regeneration, has been abruptly interrupted since their disappearance.
Studies indicate that Nearly 40% of plant species that depended on large mammals for seed dispersal are threatened. In central Chile. In comparison, in tropical regions, the proportion of species at risk is much lower, in part because animals such as tapirs and certain primates still exist there that fulfill this function, albeit partially.
Coevolutionary relationship between plants and extinct megafauna
The research supports a theory proposed decades ago: many native plants evolved large, showy fruits precisely to attract huge animals that transported and dispersed their seeds over great distances. disappearance of megafauna radically altered this ecological balance, leaving numerous plant species in a vulnerable situation.
The scientific work, published in a renowned international journal, highlights how the The loss of these animals not only implied a zoological change, but also a botanical and evolutionary one.The lack of efficient dispersers has limited the reproduction and expansion of many species, leaving some in a critical situation and hindering the regeneration of certain types of native forests.
Digital records and citizen participation in conservation
Faced with this reality, initiatives are emerging that seek to involve society in the identification and protection of endangered species. In protected areas such as the Nahuel Huapi National Park, a digital tool has been implemented that allows residents and visitors to easily record observations of native flora and endangered species.
This system of digital registry connects directly to national databases, transforming citizen observations into relevant information for management and conservation. The tool is accessible both online and offline, making registration easier even in remote areas. User manuals and support are also provided so that anyone interested can participate and contribute valuable data.
El list of priority species for conservation It is available for consultation, and the public can review the protected area's management plan to learn which species are considered significant natural assets. Public collaboration is essential for updating and implementing conservation strategies adapted to current challenges.
The loss of the link between extinct megafauna and native flora has left visible consequences for the biodiversity and ecological balance of many South American territories. However, advances in paleontological research and citizen participation in species recording and monitoring offer tools to meet the challenge of conserving and recovering part of this natural legacy. The combination of science, technology, and collaboration can make the difference in preventing these unique plants from disappearing forever.