1) Generate distribution, demographic and genetic information of the newly-discovered Liolaemus gardeli to base a robust assessment of its conservation status; 2) and conduct conservation activities of environmental education with local schools and engage government and private entities to propose a conservation planning for the species and its habitat. Specifically: 1. Search for additional populations of L. gardeli in the sandbanks of the Tacuarembó River basin, Uruguay. 2. Estimate the population size of L. gardeli, including parameters such as the number of adults, sexual dimorphism, and sex ratio. 3. Assess genetic variability and population structure, examining gene flow between individuals in the sand-dune patches where the lizard is found. 4. Organize a workshop with experts and government agencies to map the main threats to the species and assess its conservation status based on the information generated. 5. Implement environmental education activities in nearby schools, raising awareness about the importance of conserving endemic species and sand dune environments. 6. Establish contact with government agencies and forestry companies to propose the development of monitoring policies and the creation of permanent conservation areas in the Tacuarembó River basin, specifically focused on preserving the relictual sand dunes.