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Citations since 2017
6 Research Items
Climate warming is recognized as a factor that threatens plant species in Mediterranean mountains. Tropospheric ozone (O3) should also be considered as another relevant stress factor for these ecosystems since current levels chronically exceed thresholds for plant protection in these areas. The main aim of the present study was to study the sensiti...
Ozone (O3) effects on the visual attraction traits (color, perception and area) of petals are described for Erodium paularense, an endangered plant species. Plants were exposed to three O3 treatments: charcoal-filtered air (CFA), ambient (NFA) and ambient + 40 nL L1 O3 (FU+) in open-top chambers. Changes in color were measured by spectral reflecta...
Ulmus glabra is a deciduous tree with a wide distribution in the Eurosiberian region. The southernmost populations, in the Mediterranean area, are fragmented in mountain areas which act as a refugium. These small relict populations can act as sentinel of global change, including climate change and impacts of human activities such as air pollution....
Flowering phenology is an important life-history trait strongly influenced by the environment that directly affects plant fitness. Climate change is bringing about shifts in flowering time caused by adaptive evolution and phenotypic plasticity, but their relative contributions and effects are poorly understood. This is especially critical in Medite...
Entre las principales amenazas para la conservación de la flora están aquellas que tienen una base genética. Frecuentemente se recurre a actuaciones de restitución sensu lato para intentar paliar o reducir el impacto que están teniendo sobre las especies y/o poblaciones. El objetivo de este estudio es evaluar la problemática de las poblaciones desd...
Las restituciones sensu lato son herramientas muy empleadas por parte de las administraciones públicas para realizar actuaciones de mejora y gestión de todo tipo de flora amenazada. En el marco de la asignatura de Restitución Genética de poblaciones del Máster de Postgrado de Técnicas de Conservación de la Biodiversidad y Ecología de la Universidad...
Adaptation is one of the main responses of living beings to new environmental conditions. It has been argued that populations that occur at the range limits have great adaptive value as they are found under environmental conditions that are limiting for the species. Nevertherless, this is a controversial statement because it is foreseable that these populations present low genetic diversity on which natural selection can barely operate. The purpose of this project is to assess the processes of local adaptation in the populations of the southernmost limit of distribution of Silene ciliata Pourret (Caryophyllaceae), a plant of the psicroxerophilous pastures of the Mediterranean high mountains, representative of one of the most vulnerable habitats to global change in Spain. The project will analyze the relevance of population size, a key factor in this process. Taking into account possible conservation actions that may be taken to rescue marginal populations, the effect of center-periphery genetic flux on individual fitness of marginal populations will be compared with that of periphery-periphery genetic flux. Finally, the genes expressed during the establishment of Silene ciliata seedlings that may be involved in local adaptation processes will be identified and loci that are under selection will be detected and identified. The combination of field experiment approaches (common gardens with in situ reciprocal sowings), ecogeographical characterization based on field data and geographic information systems, and molecular and genomic techniques, including next generation sequencing, allow an integral perspective of local adaptation and the assessment of the relevance of this process when developing strategies that minimize the impact of global change on biodiversity.