BUSCADOR RECOLECTA

Controlling sex ratios is esential for the aquaculture industry especially in those species with sex dimorfism for relevant poductive traits

Esta matriz de datos contiene: a) el biovolumen de las especies encontradas en el punto llamado Molemocho del humedal de Las Tablas de Daimiel desde 1996 a 2002 muestreado mensualmente y b) el área de inundación del humedal en esos años. Los métodos de toma de muestras y observación, clasificación, recuento y cálculo del biovolumen, así como más información sobre el humedal se pueden encontrar, entre otras publicaciones en Rojo et al. 2012 (Trade-offs in plankton species richness arising from drought: insights from long-term data of a National Park wetland (central Spain). Biodversity and Consrvation. http://dx.doi.org/10.1007/s10531-012-0307-1). La información de a) está ordenada en filas (cada especie) y columnas (cada fecha). Las unidades son micras cúbicas por mililitro. La información de b) se encuentra como dos filas últimas (rótulo de fecha y hectáreas de inundación) siendo las columnas de nuevo la fecha de la obtención del dato. El formato es CVS.

Este documento presenta los datos de biomasa en carbono (mgC m-2) de taxones planctónicos y perifíticos de un experimento a escala de mesocosmos. La comunidad planctónica-perifítica fue sometida a tres escenarios de cambio global, con la temperatura y la radiación ultravioleta como factores experimentales testados independientemente. Cada elemento de la comunidad fue identificado a la máxima resolución taxonómica posible. Las abreviaciones y explicaciones sobre los escenarios experimentales, las replicas de cada escenario y los detalles de los compartimentos considerados en cada mesocosmos se muestran en la primera página de este documento., This document presents the data about carbon biomass (mgC m-2) of planktonic and periphytic taxa identified in a mesocosm experiment. The planktonic-periphytic community was subjected to three global change-related scenarios, with temperature and ultraviolet radiation as independently tested factors. Each element of this community was identified at the highest possible taxonomic resolution. Abbreviations about the experimental scenarios, the replicates and the details of the considered compartments in each mesocosm are shown on the first page of the document.

Two databases: Research on happiness and affect during Covid-19 confinement

Esta base de datos contiene los valores de diversos índices topológicos calculados a partir de los nodos funcionales de las comunidades acuáticas plánctónicas-bentónicas de un experimento a escala de mesocosmos. Mediante un diseño experimental que constaba de tres escenarios ambientales con cuatro réplicas cada uno (con la temperatura y la radiación ultravioleta como factores experimentales), se agruparon los organismos presentes en cada réplica (mesocosmos) en nodos funcionales. Con estos nodos se construyeron redes ecológicas tróficas (solo considerando relaciones tróficas entre ellos) y redes multi-interacción (considerando relaciones tróficas y no-tróficas). A cada uno de los nodos en cada versión de la red ecológica se le calcularon diversos índices (topological importance index, toplogical overlap index, closeness centrality y betweenness centrality) que muestran su importancia topológica en la red. Las abreviaciones y explicaciones sobre los escenarios experimentales, las replicas de cada escenario y los detalles sobre los índices y los nodos de las redes están detallados en la primera hoja de esta base de datos., This database contains the values of several topological indices calculated from the functional nodes of the planktonic-benthic aquatic communities from a mesocosm-scale experiment. Using an experimental design consisting of three environmental scenarios with four replicates each (with temperature and ultraviolet radiation as experimental factors), the organisms present in each replicate (mesocosm) were grouped into functional nodes. With these nodes, ecological trophic networks (only considering trophic relationships between them) and multi-interaction networks (considering trophic and non-trophic relations) were constructed. Different indices (topological importance index, topological overlap index, closeness centrality, and betweenness centrality) were calculated for each of the nodes in each version of the ecological network, showing their topological importance in the network. The abbreviations and explanations about the experimental scenarios, the replicates of each scenario, and the details regarding the indices and the nodes of the networks are detailed in the first sheet of this database.

Los datos aqui presentados comprenden la ocurrencia y abundancia relativa de las diatomeas bentónicas identificadas en sistemas acuáticos de la Serranía de Cuenca (centro de España) durante el verano de 2017. Los taxones se ordenan en la matriz alfabéticamente y se les asigna un código. Las muestras se caracterizan tambien por un código y por información sobre su cuenca de origen (rio Tajo o Júcar), sustrato (mineral o planta) y hábitat (ambientes lénticos o lóticos). Toda esta información contenida en varias página de un documento excel., The data presented in this document comprised the occurrence and relative abundance of benthic diatom taxa identified in Serranía de Cuenca (central Spain) waters during summer of 2017. Taxa are ordered alphabetically in columns and named with a code (see the "Taxa code" sheet) The sample code and information on catchments (Tajo or Júcar rivers), substrate (mineral or plant) and habitat (stream or stagnant water) are reported in the "Sample code" sheet

Arabidopsis_data_279accessions_8jan14, The role that different life-history traits may have in the process of adaptation caused by divergent selection can be assessed by using extensive collections of geographically-explicit populations. This is because adaptive phenotypic variation shifts gradually across space as a result of the geographic patterns of variation in environmental selective pressures. Hence, large-scale experiments are needed to identify relevant adaptive life-history traits as well as their relationships with putative selective agents. We conducted a field experiment with 279 geo-referenced accessions of the annual plant Arabidopsis thaliana collected across a native region of its distribution range, the Iberian Peninsula. We quantified variation in life-history traits throughout the entire life cycle. We built a geographic information system to generate an environmental data set encompassing climate, vegetation and soil data. We analysed the spatial autocorrelation patterns of environmental variables and life-history traits, as well as the relationship between environmental and phenotypic data. Almost all environmental variables were significantly spatially autocorrelated. By contrast, only two life-history traits, seed weight and flowering time, exhibited significant spatial autocorrelation. Flowering time, and to a lower extent seed weight, were the life-history traits with the highest significant correlation coefficients with environmental factors, in particular with annual mean temperature. In general, individual fitness was higher for accessions with more vigorous seed germination, higher recruitment and later flowering times. Variation in flowering time mediated by temperature appears to be the main life-history trait by which A. thaliana adjusts its life history to the varying Iberian environmental conditions. The use of extensive geographically-explicit data sets obtained from field experiments represents a powerful approach to unravel adaptive patterns of variation. In a context of current global warming, geographically-explicit approaches, evaluating the match between organisms and the environments where they live, may contribute to better assess and predict the consequences of global warming., Peer reviewed

Data from: Matrix composition and patch edges influence plant-herbivore interactions in marine landscapes Ecological data from seagrass meadows located in the NW Mediterranean Sea. herbivory_seascape.zip, The functioning of ecosystems can be strongly driven by landscape attributes. Despite its importance, however, our understanding of how landscape influences ecosystem function derives mostly from species richness and abundance patterns, with few studies assessing how these relate to actual functional rates. We examined the influence of landscape attributes on the rates of herbivory in seagrass meadows, where herbivory has been identified as a key process structuring these relatively simple systems. The study was conducted in three representative Posidonia oceanica meadows. The principal herbivores in these meadows are the fish Sarpa salpa and the sea urchin Paracentrotus lividus, and we hypothesised that differences in their interaction with landscape attributes would significantly influence herbivory rates. We measured herbivore abundance, herbivory rates, primary production and plant quality (C:N) in seagrass patches embedded either in rock or in sand (matrix attribute), in patches either near or far from a rocky reef (distance attribute) and at the edges and interior of meadows. Our results show that matrix and meadow edges significantly affected the actual levels of herbivory. Herbivory rates were higher in seagrass patches embedded in a rocky matrix compared to those on sand, and herbivory at the centre of seagrass meadows was higher than at the edges. In contrast, patch distance to rocky reefs did not affect herbivory. Neither herbivore abundance nor food quality explained the patterns across different landscape attributes. This suggests that variation in herbivory across the landscape may be related much more to behavioural differences between species in their evaluation of risk, movement, and food preference in relation to the landscape structure. Our results indicate that richness and abundance patterns may mask critical interactions between landscape attributes and species responses, which result in considerable heterogeneity in the way key functional processes like herbivory are distributed across the ecosystem mosaic., Peer reviewed

Genotype data sets Genotypes of the individuals analyzed in Sanchez-Donoso et al., Frontiers in Ecology and Evolution, 2014. Genotypes Dryad_Sanchez-Donoso et al_Frontiers.xlsx, Interbreeding of two species in the wild implies introgression of alleles from one species into the other only when admixed individuals survive and successfully backcross with the parental species. Consequently, estimating the proportion of first generation hybrids in a population may not inform about the evolutionary impact of hybridization. Samples obtained over a long time span may offer a more accurate view of the spreading of introgressed alleles in a species’ gene pool. Common quail (Coturnix coturnix) populations in Europe have been restocked extensively with farm quails of hybrid origin (crosses with Japanese quails, C. japonica). We genetically monitored a common quail population over 15 years to investigate whether genetic introgression is occurring and used simulations to investigate our power to detect it. Our results revealed that some introgression has occurred, but we did not observe a significant increase over time in the proportion of admixed individuals. However, simulations showed that the degree of admixture may be larger than anticipated due to the limited power of analyses over a short time span, and that observed data was compatible with a low rate of introgression, probably resulting from reduced fitness of admixed individuals. Simulations predicted this could result in extensive admixture in the near future., Peer reviewed

E_arborea__E_australis_Genotypes Genotypes for the populations of Erica arborea and Erica australis in Gil-López et al., 2014, Many habitat specialist species are originally composed of small, discontinuous populations because their habitats are naturally fragmented or patchy. They may have suffered the long-term effects of natural patchiness. Mediterranean heathlands, a representative habitat in the Strait of Gibraltar region, are associated with nutrient-poor, acidic sandstone soils. Sandstone soil patches in the African side of the Strait (Tangier) are, in general, smaller and more scattered than in the European side (Algeciras). In this study, we analyze the effect of this sandstone patchiness on the population genetic diversity and structure of two Erica species from these Mediterranean heathlands that differ in their edaphic specificity, E. australis, sandstone specialist, and E. arborea, generalist. Average levels of within-population genetic diversity and gene flow between populations were significantly lower in Tangier (high sandstone patchiness) than in Algeciras (low patchiness) for the sandstone specialist, whereas no differences between both sides of the Strait were detected in the edaphic generalist. Since most endemic species in Mediterranean heathlands of the Strait of Gibraltar are sandstone specialists, these results highlight an increased vulnerability to loss of genetic diversity and local extinction of the heathland endemic flora in the Tangier side of the Strait of Gibraltar., Peer reviewed