TY - JOUR AU - Leyva, Luis Manuel AU - de Vales Fernández, Dennys AU - Falcón-Hidalgo, Banessa PY - 2021/07/23 Y2 - 2024/03/29 TI - Estructura poblacional de Phyllanthus orbicularis (Phyllanthaceae) en cuatro localidades de Cuba JF - Journal of the Botanical Research Institute of Texas JA - J. Bot. Res. Inst. Texas VL - 15 IS - 1 SE - FLORISTICS, ECOLOGY, & CONSERVATION DO - 10.17348/jbrit.v15.i1.1059 UR - https://journals.brit.org/jbrit/article/view/1059 SP - 169-182 AB - <p>Population structure studies allow analysis of variability within and between natural populations, and are essential to express criteria on the conservation status of species. <em>Phyllanthus orbicularis</em> is an endemic plant from Cuba that lives in xeromorphic, thorny thickets on serpentine, where it is a dominant species. However, ecological studies of <em>P. orbicularis</em> populations have not been carried out. Understanding the population structure of <em>P. orbicularis</em> can contribute to evaluating its conservation status, and the conservation status of the xeromorphic, thorny thickets on serpentine. The present study aims to compare the population structure of P. orbicularis in four locations in Cuba, where a systematic sampling was carried out for 10 plots of 4 m<sup>2</sup>. The number of individuals per plot was recorded, and their height, diameter of base, and canopy cover were measured. The age structure was characterized inon five classes according to the height and diameter of base. Additionally, population density was calculated, and the spatial arrangement pattern was clustered. Age of the four populations was determined, with a high percentage of adult individuals compared to juveniles. The most balanced structured population was Cuabales de Cajálbana, since it exhibited individuals in all the delimited state classes. The worst population was Lomas de Galindo, wherein the anthropic influence had altered the natural population of the species. Furthermore, there was a dependency between the number of individuals per class of state and the locality, which could be due to the degree of management and anthropization at each site.</p> ER -