The South is My Country movement includes three stars which represent Paraná, Santa Catarina and Rio Grande do Sul. On 1 October 2016, Plebisul - an unofficial referendum - was held. Voters were asked if they wanted to secede from Brazil, forming a new country with the three states. A total of 616,917 votes (which represents less than 3% the number of registered voters in these states) were counted according to the organizers of the ballot, 95% voting "yes". They were hoping to reach up to a million votes throughout the three Brazilian states. Some academics claim that the movement bases its separatist claims in
Tapajós-Xingu moist forests the ecoregion blends into the Mato Grosso seasonal forests ecoregion. Elevations range from above sea level along the Amazon to in the south. The ecoregion mostly lies on the undulating terrain of the ancient Brazilian Shield. Soils are often rich in nutrients, but poor soils are found in the higher areas. The main rivers are blackwater, with little or no suspended sediment. The largest is the Iriri, a tributary of the Xingu. Others are the Jamanxim, Curuá, Crepori, Curuá Una, and Jaraucu. The ecoregion is in the neotropic ecozone and the tropical and subtropical moist broadleaf forests biome. The Köppen