Primeros datos cromoestratigráficos de las series evaporíticas del triásico superior de Valencia (España)

El Triásico Superior del sector central valenciano de la Cordillera Ibérica presenta una facies germánica (Keuper) integrada por dos secuencias evaporíticas separadas por un episodio detrítico principal. Los datos preliminares obtenidos de una investigación palinológica en curso revelan una edad Karniense para todos estos materiales.

Cenozoic evolution of eastern Iberia: structural data and dynamic model.

Iberia underwent intraplate deformation during the Mesozoic and Cenozoic. In eastem Ibena, compression took place during the Palaeogene and early Miocene, giving rise to the Iberian Chain, and extension started during the early Miocene in the coastal areas and the Valencia trough; during early Miocene compression continued in the western Iberian Chain whereas extension had started in the eastern Iberian Chain. From the kinematic data obtained from the major compressional and extensional structures formed dunng the Cenozoic, a simple dynamic model using Bott's (1959) formula is presented. The results show that both extension and compression may have been produced assuming a main horizontal stress-axis approximately N-S, in a similar direction that the convergence between Europe, Ibena and Afnca dunng the Cenozoic.

Primeros datos cromoestratigráficos de las series evaporíticas del triásico superior de Valencia (España)

El Triásico Superior del sector central valenciano de la Cordillera Ibérica presenta una facies germánica (Keuper) integrada por dos secuencias evaporíticas separadas por un episodio detrítico principal. Los datos preliminares obtenidos de una investigación palinológica en curso revelan una edad Karniense para todos estos materiales.

Abiner, Abinericus, Abinnericus

Interpretación de las estampillas ibero-romanas sobre mortero de Caminreal como textos no equivalentes entre sí, y de la palabra ibérica abiner como un antropónimo, y no como una traducción del vocablo latino servus.

Las cerámicas de cocción reductora del yacimiento de L’Esquerda (Roda de Ter, Barcelona)

Este estudio se ha centrado en la caracterización macroscópica y mediante microscopio óptico de dos grupos de cerámica de cocción reductora del yacimiento de l’Esquerda (Roda de Ter, Barcelona): las cerámicas grises de la costa catalana, de época ibérica, y las cerámicas grises medievales. El objetivo era doble: por un lado, identificar producciones y su posible procedencia, y por el otro, intentar establecer un método de clasificación que permita la posterior clasificación del resto del material cerámico del yacimiento. Muestras de otros tipos materiales de posible producción local han servido como material de referencia dada la falta de evidencias arqueológicas de hornos. Los resultados han permitido identificar dos fragmentos importados, uno de ellos desde Italia, mientras que el resto del material es muy homogéneo y no presenta elementos claros que indiquen una producción no local.

Bromas-y veras- epigráficas: Larramendi y Erro

Se trata en este trabajo de una supuesta inscripción vasco-ibérica que el padre Larramendi puso en su Diccionario trilingüe, de cómo Mayans la condenó y cómo la imitó Erro.

Los Pronombres átonos (le, la, lo), sus variaciones dialectales y su tratamiento en la clase de ELE

En este trabajo he abordado la enseñanza de los pronombres átonos le, la, lo / les, las, los y sus variantes dialectales en el contexto de la enseñanza de español como lengua extranjera. Las variaciones en el uso de los pronombres, ya no solo en la Península, sino en el resto de países hispanohablantes, son bastante numerosas y es una de las mayores dificultades que presenta el español

How are riparian plants distributed along the riverbank topographic gradient in Mediterranean rivers? Application to minimally altered river stretches in Southern Spain.

Species structure and composition in Mediterranean riparian forests are determined by hydrological features, longitudinal zonation, and riverbank topography. This study assesses the distribution of four native riparian plants along the riverbank topographic gradient in three river stretches in southern Spain, with special emphasis on the occupation of adult and young feet of each species. The studied stretches suffered minimal human disturbances, displayed semi-arid conditions, and had wide riparian areas to allow the development of the target species: black alder (Alnus glutinosa), salvia leaf willow (Salix salviifolia), narrow-leafed ash (Fraxinus angustifolia), and oleander (Nerium oleander). Thalweg height was used to define the riverbank topographic gradient. The results showed a preferential zone for black alder and salvia leaf willow in the range of 0-150 cm from the channel thalweg, with adult alders and willows being more common between 51 and 150 cm and young alders being more common under 50 cm. Conversely, narrow-leafed ash and oleander were much more frequent, and showed greater development, in the ranges of 151-200 cm and 201-250 cm, respectively, whereas the young feet of both species covered the entire topographic range. Adult feet of the four species were spatially segregated along the riverbank topographic gradient, indicating their differential ability to cope with water stress from the non-tolerant alders and willows to more tolerant narrow-leafed ash trees and oleanders. Young feet, however, showed a strategy more closely linked to the initial availability of colonisation sites within riparian areas to the dispersion strategy of each species and to the distribution of adult feet. In Mediterranean areas, where riparian management has traditionally faced great challenges, the incorporation of species preferences along riverbank gradients could improve the performance of restoration projects.

Genetic diversity and species richness patterns in Baetidae (Ephemeroptera) in the Montseny Mountain range (North-East Iberian Peninsula)

This study aimed to describe patterns of diversity of Baetidae (Ephemeroptera) at the ommunity and population levels within the Montseny Mountain range (North-East Iberian Peninsula). We studied both the distribution of 4 species of baetids in 20 sites among three catchments along the altitudinal gradient (350-1700 masl); and the genetic diversity of the mtDNA cytochrome c oxidase subunit I (cox1) gene of the two common species Baetis alpinus and Baetis rhodani. We found a gradual replacement of the dominant species along the altitudinal gradient. Baetis alpinus inhabited sites at high-altitudes, and this species was replaced by B. rhodani when the altitude decreased. Baetis melanonyx and Alainites muticus attained low abundance at all river sections, and no clear altitudinal trend appeared. Our hypothesis at the population level was that genetic structuring is associated with geographic distance and limited by drainage boundaries among the three studied catchments because of the short-time dispersion of adults. Unexpectedly, analyses of molecular variance (AMOVA) and isolation-bydistance (IBD) showed genetic diversity was unstructured by distance for both species, which may be explained by the relatively short spatial scale studied and small topographic barriers among the three catchments. The Generalized Mixed Yule-Coalescent (GMYC) model showed that B. rhodani had two differentiated genetic lineages that co-occurred in all sites. Overall, diversity of baetids was structured at the community level along the altitudinal gradient, whereas it was unstructured at the population level within the Montseny Mountain range.

Genetic diversity and species richness patterns in Baetidae (Ephemeroptera) in the Montseny Mountain range (North-East Iberian Peninsula)

This study aimed to describe patterns of diversity of Baetidae (Ephemeroptera) at the ommunity and population levels within the Montseny Mountain range (North-East Iberian Peninsula). We studied both the distribution of 4 species of baetids in 20 sites among three catchments along the altitudinal gradient (350-1700 masl); and the genetic diversity of the mtDNA cytochrome c oxidase subunit I (cox1) gene of the two common species Baetis alpinus and Baetis rhodani. We found a gradual replacement of the dominant species along the altitudinal gradient. Baetis alpinus inhabited sites at high-altitudes, and this species was replaced by B. rhodani when the altitude decreased. Baetis melanonyx and Alainites muticus attained low abundance at all river sections, and no clear altitudinal trend appeared. Our hypothesis at the population level was that genetic structuring is associated with geographic distance and limited by drainage boundaries among the three studied catchments because of the short-time dispersion of adults. Unexpectedly, analyses of molecular variance (AMOVA) and isolation-bydistance (IBD) showed genetic diversity was unstructured by distance for both species, which may be explained by the relatively short spatial scale studied and small topographic barriers among the three catchments. The Generalized Mixed Yule-Coalescent (GMYC) model showed that B. rhodani had two differentiated genetic lineages that co-occurred in all sites. Overall, diversity of baetids was structured at the community level along the altitudinal gradient, whereas it was unstructured at the population level within the Montseny Mountain range.

Zona volcànica catalana

Esta excursión pretende ofrecer una visión esquemática y puntual de uno de los rasgos principales de la geología del noreste de la Península Ibénca, como es el vulcanismo neógeno-quaternario de la Zona Volcánica Catalana (ZVC). En concreto se plantea un recorrido, por el Parque Natural de la Zona Volcánica de la Garrotxa (PNZVG), que muestre los rasgos más significativos del vulcanismo reciente de la PenínsulaIbérica

Is Microtox R toxicity related to potentially harmful algae proliferation in Mediterranean salt marshes?

Mediterranean salt marshes are ecosystems that are highly influenced by sea changes and freshwater inputs from runoff. In these ecosystems, toxic and non-toxic algae blooms often produce large and unpredictable biomasses of phytoplankton. The Microtox R test has been described as a successful, quick method for detecting toxicity in various phytoplankton taxa. Ourstudy sought to test the efficiency of Microtox R in detecting toxic HAB in Mediterranean salt marshes. The results showed that the Microtox R test was able to detect toxic substances in the particulate matter of several lagoons in the Empordà salt marshes. This Microtox R toxicity coincided with periods when potentially harmful cyanobacteria, dinoflagellates andhaptophytes had a high biomass. The results suggest that potentially harmful phytoplankton cannot be ruled out as a source of Microtox R