Evaluating Frequency Sampling for Botanical Composition Assessment in Heterogeneous Tropical Grasslands. - Valencia-Echavarría, Diana Marcela; Granja-Salcedo, Yury Tatiana; Vargas, Julián Andrés Castillo; Barrientos Grajales, Sorany Milena; Sierra-Alarcón, Andrea Milena (Agronomy, 2026)