The small Argentine Sand Dune Lizard, Liolaemus multimaculatus, is one of five lizard species occurring in the sand dunes of Buenos Aires Province. However, this Argentine endemic is the only one so closely adapted to its environment that it cannot colonize and survive in other habitat types. Only six disjunct patches of coastal dunes remain in Buenos Aires, and all are faced with excessive and irrational exploitation with no regard for the environment, leaving the isolated surviving Sand Dune Lizard populations extremely vulnerable.

Although these patches have been declared "Áreas Valiosas de Pastizal" (Valuable Grassland Areas) for South America, with the exception of small portions that have been preserved as Natural Reserves, they are not provided with any differential management focused on the conservation of the habitats and species that live in them.