105 research outputs found

    Aproximación a la bibliografía florística básica de la Peninsula Ibérica e Islas Baleares.

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    MORENO SAuz, J. C. & SAINZ OLLERO, H. 1989. An aproxirnation to the floristic basic bibliography of the Iberian Peninsula and Balearic Islands. BoL ComplutenSis 15: 175-202. A compilation of floristic catalogues from Iberian Península and Balearic Lslands is presented. Tbese works have been sorted out by countries and provinces. A geografical representation of their distribution has been drown in a map.MORENO SÁIZ, £ C. & SAINZ OLLERO, H. 1989. Aproximación a la bibliografía floristica básica de la Península Ibérica e Islas Baleares. Bot Comp/utensis 15: 175202 Se lleva a cabo una recopilación de catálogos floristicos elaborados dentro del territorio de la Península Ibérica e Islas Baleares.Dichos trabajos se han ordenado por países y provincias y representado geográficamente en un mapa de distribucion

    Phylogenetic patterns of extinction risk in the endemic flora of a Mediterranean hotspot as a guiding tool for preemptive conservation actions

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    Climate change is a major driver of biodiversity decline with pervasive effects in biodiversity hotspots, where many endemic and threatened species thrive. However, the biological drivers of extinction susceptibility remain largely elusive, which hampers the implementation of effective conservation policies. Here, we advocate for the use of phylogenies as a complementary tool to inform policy makers. If we assume that the traits that determine extinction susceptibility are somewhat evolutionarily conserved, identifying the clades that accumulate a disproportionate amount of threatened species may help to mitigate potential increases in extinction risk among currently unthreatened species in these clades, even if the underlying biological drivers are unknown. We focused on the complete endemic angiosperm flora of a Mediterranean hotpot (Iberian Peninsula) to examine phylogenetic patterns in extinction risk expressed as IUCN categories (Least Concern “LC”, Near Threatened “NT”, Vulnerable “VU”, Endangered “EN” and Critically Endangered “CR”) using alpha and beta diversity metrics, comparative methods and a “hot node” approach. Phylogenetic diversity was significantly low for EN species and marginally significant for NT and CR, while LC and VU categories showed random pattern. Phylogenetic beta diversity (PBD) between IUCN categories was intermediate (0.40 – 0.61) and predominantly due to the “true” turnover component of PBD. Phylogenetic turnover was significantly low between NT – VU and VU – EN, suggesting that closely related species tend to show different threat status. In contrast, the comparisons involving the CR category sit toward the higher tail of the distribution, indicating a somewhat higher degree of clade specificity for CR species. In line with these patterns, phylogenetic signal in extinction risk was rather low (lambda = 0.23). Several of the “hot” clades that accumulated a significantly high number of species with the same threat status were specific to certain IUCN categories, yet few of them were observed across the categories. Most notably, the Caryophyllales stood out as the main threat-accumulating lineage, particularly within the Plumbaginaceae. All in all, our results indicate that few phylogenetic clades concentrate a great fraction of the extinction-risk gradient in the endemic flora of the western Mediterranean, and monitoring programs should pay particular attention to these extinction-prone lineagesThis paper contributes to the project REMEDINAL TE (P2018/EMT-4338) from the Regional Government of the Community of Madri

    Nuevo ensayo fitogeográfico a partir de las monocotiledóneas endémicas ibero-baleáricas

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    A new proposal to establish floristic regions in the Iberian Península and the Balearte Islands, based on their endemic monocots, is presented. The data matrix was built with 182 species and subspecies mapped on the UTM 10 x 10 km grid, and using the TWINSPAN programme for classification. The 2094 squares with chorological information were divided into 10 sectors with subsectors. These sectors do not cover the whole studied territory due to the lack of chorological data for some regions. Some Iberian áreas belonged to a single sector, while in others a combination of sectors was a notable feature. Results are discussed taking into account previous proposals to delimit Iberian and Balearic fitogeographical áreas, and the principal endemic floristic characters, which it has been possible to differentiate, from the point of view of their distribution, are emphasized.Se presenta una nueva aproximación a la sectorización florística de la Península Ibérica e islas Baleares basada en sus monocotiledóneas endémicas. A partir de las distribuciones de 182 táxones cartografiados utilizando la cuadrícula UTM de 10 x 10 km, se ha analizado la matriz de datos resultante utilizando el programa TWINSPAN de clasificación. Las 2.094 cuadrículas con información corológica han quedado divididas en 10 sectores con sus correspondientes subsectores, que no logran recubrir la totalidad del territorio estudiado por falta de datos corológicos. Diversas porciones ibéricas quedan caracterizadas por su pertenencia a un solo sector, mientras en otras la mezcla de sectores es su nota dominante. Se discuten los resultados respecto a anteriores propuestas sectorizadoras y se resaltan los principales elementos endemoflorísticos que, con una óptica corológica, cabe diferenciar en Iberia y Baleares

    Aproximación a la bibliografía florística básica de plantas vasculares de la Península Ibérica e Islas Baleares, II: 1989-1998

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    A new relation of floristic-catalogue studies of the Iberian Peninsula and the Balearic Islands is presented. 207 new references, mainly from the last decade, are now added, updating the existing list generated in 1988. A total of more than 450 catalogues is registered now for the whole territory. Some gaps still remaining in the Iberian floristic study are commented upon, as well as the timing of forthcoming publications.Se actualiza la relación de catálogos florísticos de la Península Ibérica e Islas Baleares realizada en 1988. Se añaden 207 nuevas referencias, principalmente del último decenio, con lo que el numero de catálogos florísticos se eleva a mas de 450. Se comentan las deficiencias que aun subsisten en el estudio florístico ibérico y el ritmo de aparición de nuevos trabajos

    Nuevos datos sobre la presencia de Coronopus navasii (Brassicaceae) en el Sistema Ibérico

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    New data concerning the presence of Coronopus navasii (Brassicaceae) in the Iberian System. Information on two new localities of Coronopus navasii Pau found in the Iberian System is provided. The conservation status of the species in this geographical area is discussed in the light of the last field work

    The European Union can afford greater ambition in the conservation of its threatened plants

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    The importance of Natura 2000 network for the conservation of natural habitats, wild flora and fauna at European level is undeniable. However, it may not have reached its full potential since the loss of biodiversity continues to increase year on year. Further on, a third of the plant species listed in the Habitats Directive to guide the declaration of European Union Natura 2000 network of protected areas is not threatened and there is broad agreement on the need to review and update the species list. Here, the effectiveness of Natura 2000 in the conservation of Spanish bryophytes and vascular plants included in the Habitats Directive Annex II is analysed and compared with the one offered to the species included in the Spanish Red Lists. Results show a remarkable coverage of Natura 2000 over the distribution areas of threatened species, thus providing an umbrella effect on these taxa. It confirms that the number of plant species in the Habitats Directive could be significantly extended without altering the current configuration of the network. This would allow the incorporation of scientific advances produced since the Habitats Directive was approved almost 30 years ago, and will contribute to the goals of the new European Biodiversity Strategy for 2030, such as to consider impacts caused by alien species, land use or climate changesThe Spanish Ministry of Science, Innovation and Universities supported J.C.M.S. through the Bioregions 2.0 project (CGL2017-86926-P

    A western representative of an eastern clade: phylogeographic history of the gypsum-associated plant Nepeta Hispanica

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    The preference of certain plant species for gypsum soils with a patchy distribution leads to disjunct population structures that are thought to generate island-like dynamics potentially influencing biogeographic patterns at multiple evolutionary scales. Here, we study the evolutionary and biogeographic history of Nepeta hispanica, a western Mediterranean plant associated with gypsum soils and displaying a patchy distribution with populations very distant from each other. Three approaches were used: (a) interspecific phylogenetic analyses based on nuclear DNA sequences of the ITS region to unveil the relationships and times of divergence between N. hispanica and its closest relatives; (b) phylogeographic analyses using plastid DNA regions trnS-trnG and psbJ-petA to evaluate the degree of genetic isolation between populations of N. hispanica, their relationships and their genetic diversity; and (c) ecological niche modelling to evaluate historical distributional changes. Results reveal that N. hispanica belongs to an eastern Mediterranean and Asian (Irano-Turanian) clade diversified in arid environments since the Miocene-Pliocene. This species represents the only lineage of this clade that colonised the western Mediterranean, probably through the northern Mediterranean coast (southern Europe). Present Iberian populations display a high plastid genetic diversity and, even if geographically distant from each other, they are highly connected according to the distribution of plastid haplotypes and lineages. This can be explained by a scenario involving a complex history of back-and-forth colonisation events, facilitated by a relative stability of suitable conditions for the species across the western Mediterranean throughout the QuaternaryThis work would not have been possible without the support of Julian ´ García, Rub´en de Pablo, Jesús del Río, Leonardo Guti´errez, Javier Puente, Javier Pavon ´ and Luis M. Medrano, who helped us with field sample collection; Leopoldo Medina, Cyrille Chatelain, Jesús Riera and Javier Hernandez, ´ who granted us permission to use specimens from the MA, G, VAL and SALA herbaria respectively; and Emilio Cano, who provided his invaluable help in the RJB-CSIC molecular systematics laboratory. Fieldwork was financed by the Universidad Autonoma ´ de Madrid with a grant to IRG’s Master thesis. Laboratory work was funded by a Juan de la Cierva fellowship to MF-M (Spanish Ministry of Economy and Competitiveness, reference IJCI-2015–23459

    Revisión del catálogo de flora protegida de la Comunidad Autónoma de Madrid

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    La Comunidad de Madrid reúne en sus poco más de 8.000 km2 una notable riqueza florística gracias a la variedad de ambientes que contiene. Así, su flora vascular no bajaría de las 2.700 especies, más del 30% del catálogo florístico total español. Esta diversidad se repite asimismo entre los briófitos, grupo menos explorado pero del que no menos de 450 especies, el 40% de las peninsulares, viven en el territorio madrileñ

    Editorial: Overcoming the Global Climate Crisis: Solutions to Minimize the Loss of Mediterranean Plants

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    Editorial on the Research Topic Overcoming the Global Climate Crisis: Solutions to Minimize the Loss of Mediterranean PlantsMediterranean-climate regions are home to significant levels of plant diversity and endemism that are challenged by the threats of the modern world: habitat loss and fragmentation, high human population growth, and overexploitation of natural resources. Because of the fast rate of changes occurring in its ecosystems, many plants are threatened, and the trend is to worsen throughout the century (Muñoz-Rodríguez et al., 2016; Habel et al., 2019; Abeli et al., 2021). By 2100, this area will experience the highest biodiversity loss of all terrestrial biomes (Sala et al., 2000). In this context, and with the Damocles sword of climate change, it is urgent to explore new perspectives to prevent and reduce the loss of Mediterranean plantsinfo:eu-repo/semantics/publishedVersio
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