17 research outputs found

    Genetic diversity and structure of the narrow endemic species Crepis granatensis: implications for conservation

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    In this study, we studied the genetic diversity and population genetic structure of the endangered endemic Crepis granatensis, using amplified fragments length polymorphism (AFLP) and plastid DNA (cpDNA). No genetic divergences were obtained using cpDNA markers. Three primers combinations selected from a total of 12 produced a total of 421 fragments, of which 418 (99.3%) were polymorphic. The total genetic diversity of C. granatensis was moderate (Ht = 0.260). Neís gene diversity ranged from 0.202 to 0.258. The fixation index (Fst) was 0.137, suggesting low to moderate genetic differentiation among populations. The AMOVA analysis revealed that genetic diversity was mainly concentrated among individuals within populations (74%), while 8% was found among populations and 18% among regions. The Bayesian analysis and PCoA identified two genetic clusters: one corresponded to La Sagra population and the other corresponded to the Mágina populations. Based on our genetic results, it is necessary to preserve the evolutionary potential of C. granatensis by protecting all extant populations. Both in situ and ex-situ conservation measures should be considered. Reinforcement, reintroduction, and translocation programmes could be performed if necessary. Finally, such conservation strategies should be considered both in the current recovery plan and management actions for the species.Departamento de Biología Vegetal de la Universidad de Murcia, Departamento de Botánica de la Universidad de Granad

    Cartografía y ordenación vegetal de Sierra Morena: Parque Natural de las Sierras de Cardeña y Montoro (Córdoba)

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    Se realiza la cartografía y evaluación vegetal del P.N. De las sierras de Cardeña y Montoro en la provincia de Córdoba. Para ello, se describen las características del territorio y se analizan los datos bioclimáticos y biogeográficos del área de estudio. Una vez elaborado el catálogo florístico del parque, se estudia la vegetación desde una óptica fitisociología y sinfitosociológica como base para la elaboración de la cartografía actual del parque y la propuesta de ordenación de la vegetación y mejora de pastizales.Tesis Univ. Jaén. Departamento de Biología Animal, Biología Vegetal y Ecología. Leída el 4 de noviembre de 199

    Fragmenta chorologica occidentalia, 5663-5680

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    Données floristiques d'intêret corologique pour l'Andalousie Occidentale (Espagne)

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