Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil

摘要: Studies on the survival of species are essential to understanding their biology and developing effective conservation management plans. This study aimed determine best model explain Melocactus conoideus basis time, density, age structure habitat location, as well describe interactions among those factors. The was conducted in three M. patches municipality Vitoria da Conquista, state Bahia, Brazil, only one which within a "conservation unit" (protected area). In each patch, we selected 120 specimens conoideus, were marked with identification plates classified by developmental stage density. individuals monitored for period year. overall 87.5% found correlate month, interaction between factors Patch Density. Our results show that is related intrinsic characteristics patch suggest more areas should be set aside this species.