140 Works

Data from: Oceanic thermal structure mediates dive sequences in a foraging seabird

Xavier Meyer, Andrew MacIntosh, André Chiaradia, Akiko Kato, Francisco Ramírez, Cedric Sueur & Yan Ropert-Coudert
1. Changes in marine ecosystems are easier to detect in upper-level predators, like seabirds, which integrate trophic interactions throughout the food web. 2. Here, we examined whether diving parameters and complexity in the temporal organisation of foraging sequences of little penguins (Eudyptula minor) are influenced by sea surface temperature (SST), water stratification and wind speed – three oceanographic features influencing prey abundance and distribution in the water column. 3. Using fractal time series analysis, we...

Data from: As time goes by: 20 years of changes in the aquatic macroinvertebrate metacommunity of Mediterranean river networks

Miguel Cañedo-Argüelles, Cayetano Guitiérrez-Cánovas, Raul Acosta, Daniel Castro, Núria Cid, Pau Fortuño, Antoni Munné, Cesc Múrria, Rita Rodrigues, Romain Sarremejane, Maria Soria, Pol Tarrats, Iraima Verkaik, Narcís Prat & Núria Bonada
Aim: to analyse temporal metacommunity dynamics in river networks in relation to hydrological conditions and dispersal. Location: 15 river reaches from the Llobregat, Besòs and Foix catchments in the North-Eastern Iberian Peninsula. Taxon: aquatic macroinvertebrates belonging to 99 different families. Methods: we sampled aquatic macroinvertebrate communities during spring in 20 consecutive years. We built two environmental distances (one related with water chemistry and another one with river flow regime) and two spatial distances (network distance...

A framework for mapping the distribution of seabirds by integrating tracking, demography and phenology

Ana P. B. Carneiro, Elizabeth J. Pearmain, Steffen Oppel, Thomas A. Clay, Richard A. Phillips, Anne-Sophie Bonnet-Lebrun, Ross M. Wanless, Edward Abraham, Yvan Richard, Joel Rice, Jonathan Handley, Tammy E. Davies, Ben J. Dilley, Peter G. Ryan, Cleo Small, Javier Arata, John P. Y. Arnould, Elizabeth Bell, Leandro Bugoni, Letizia Campioni, Paulo Catry, Jaimie Cleeland, Lorna Deppe, Graeme Elliott, Amanda Freeman … & Maria P. Dias
1. The identification of geographic areas where the densities of animals are highest across their annual cycles is a crucial step in conservation planning. In marine environments, however, it can be particularly difficult to map the distribution of species, and the methods used are usually biased towards adults, neglecting the distribution of other life-history stages even though they can represent a substantial proportion of the total population. 2. Here we develop a methodological framework for...

Double-tagging scores of seabirds reveals that light-level geolocator accuracy is limited by species idiosyncrasies and equatorial solar profiles

Luke Halpin, Jeremy Ross, Raül Ramos, Rowan Mott, Nicholas Carlile, Nick Golding, José Manuel Reyes-González, Teresa Militão, Fernanda De Felipe, Zuzana Zajková, Marta Cruz Flores, Sarah Saldanha, Virginia Morera-Pujol, Leia Navarro-Herrero, Laura Zango, Jacob Gonzalez-Solis & Rohan Clarke
Light-level geolocators are popular bio-logging tools, with advantageous sizes, longevity, and affordability. Biologists tracking seabirds often presume geolocator spatial accuracies between 186-202 km from previously-innovative, yet taxonomically, spatially, and computationally limited, studies. Using recently developed methods, we investigated whether assumed uncertainty norms held across a larger-scale, multispecies study. We field-tested geolocator spatial accuracy by synchronously deploying these with GPS loggers on scores of seabirds across five species and 11 Mediterranean Sea, East Atlantic and South...

Data from: A pragmatic approach to the analysis of diets of generalist predators: the use of next-generation sequencing with no blocking probes

Josep Piñol, Victoria San Andrés, Elizabeth L. Clare, Gisela Mir & William O. C. Symondson
Predicting whether a predator is capable of affecting the dynamics of a prey species in the field implies the analysis of the complete diet of the predator, not simply rates of predation on a target taxon. Here, we employed the Ion Torrent next-generation sequencing technology to investigate the diet of a generalist arthropod predator. A complete dietary analysis requires the use of general primers, but these will also amplify the predator unless suppressed using a...

Data from: Spatio-temporal monitoring of deep-sea communities using metabarcoding of sediment DNA and RNA

Magdalena Guardiola, Owen S. Wangensteen, Pierre Taberlet, Eric Coissac, María Jesús Uriz & Xavier Turon
We assessed spatio-temporal patterns of diversity in deep-sea sediment communities using metabarcoding. We chose a recently developed eukaryotic marker based on the v7 region of the 18S rRNA gene. Our study was performed in a submarine canyon and its adjacent slope in the Northwestern Mediterranean Sea, sampled along a depth gradient at two different seasons. We found a total of 5,569 molecular operational taxonomic units (MOTUs), dominated by Metazoa, Alveolata and Rhizaria. Among metazoans, Nematoda,...

Data from: Resolving recent plant radiations: power and robustness of genotyping-by-sequencing

Mario Fernández-Mazuecos, Greg Mellers, Beatriz Vigalondo, Llorenç Sáez, Pablo Vargas & Beverley J. Glover
Disentangling species boundaries and phylogenetic relationships within recent evolutionary radiations is a challenge due to the poor morphological differentiation and low genetic divergence between species, frequently accompanied by phenotypic convergence, inter-specific gene flow and incomplete lineage sorting. Here we employed a genotyping-by-sequencing (GBS) approach, in combination with morphometric analyses, to investigate a small western Mediterranean clade in the flowering plant genus Linaria that radiated in the Quaternary. After confirming the morphological and genetic distinctness of...

Data from: Gut microbiota dynamics during dietary shift in Eastern African cichlid fishes

Laura Baldo, Joan Lluís Riera, Ave Tooming-Klunderud, M. Mar Albà & Walter Salzburger
The gut microbiota structure reflects both a host phylogenetic history and a signature of adaptation to the host ecological, mainly trophic niches. African cichlid fishes, with their array of closely related species that underwent a rapid dietary niche radiation, offer a particularly interesting system to explore the relative contribution of these two factors in nature. Here we surveyed the host intra- and interspecific natural variation of the gut microbiota of five cichlid species from the...

Data from: A geographical distribution database of the genus Dysdera in the Canary Islands (Araneae, Dysderidae)

Nuria Macías-Hernández, Salvador De La Cruz López, Marcos Roca-Cusachs, Pedro Oromí & Miquel A. Arnedo
The ground-dweller spider genus Dysdera shows very high species richness on the oceanic archipelago of the Canary Islands, providing one of the most outstanding examples of island radiation among spiders, only paralleled by Tetragnatha spiders on the Hawaiian archipelago. A georeferenced database of the 48 Dysdera species occurring in the Canary Islands was assembled to facilitate ongoing and future research on this remarkable lineage. All species are endemic to the archipelago except for the cosmopolitan...

Data from: The grass was greener: repeated evolution of specialized morphologies and habitat shifts in ghost spiders following grassland expansion in South America

Fadia Sara Ceccarelli, Nicolas Mongiardino Koch, Eduardo M. Soto, Mariana L. Barone, Miquel A. Arnedo & Martin J. Ramirez
While grasslands, one of Earth’s major biomes, are known for their close evolutionary ties with ungulate grazers, these habitats are also paramount to the origins and diversification of other animals. Within the primarily South American spider subfamily Amaurobioidinae (Anyphaenidae), several species are found living in the continent’s grasslands, with some displaying putative morphological adaptations to dwelling unnoticed in the grass blades. Here, a dated molecular phylogeny provides the backbone for analyses revealing the ecological and...

Data from: Response diversity in Mediterranean coralligenous assemblages facing climate change: Insights from a multispecific thermotolerance experiment

Daniel Gómez Gras, Cristina Linares, Sonia De Caralt, Emma Cebrian, Maša Frleta-Valić, Ignasi Montero-Serra, Marta Pagès-Escolà, Paula López-Sendino & Joaquim Garrabou
Climate change threatens coastal benthic communities on a global scale. However, the potential effects of ongoing warming on mesophotic temperate reefs at the community level remain poorly understood. Investigating how different members of these communities will respond to the future expected environmental conditions is, therefore, key to anticipating their future trajectories and developing specific management and conservation strategies. Here, we examined the responses of some of the main components of the highly diverse Mediterranean coralligenous...

Data from: Upstream analyses create problems with DNA-based species delimitation

Melisa Olave, Eduard Solà & L. Lacey Knowles
Genetic-based delimitation of species typically involves a multistep process in which DNA data are analyzed with a series of different programs. Although the performance of the programs associated with each step has been evaluated separately, no analysis has considered how errors in the upstream assignment of individuals to putative species impacts the accuracy of species delimited in downstream analyses, such as those associated with the coalescent-based Bayesian program bpp. Here we show that because the...

Data from: Elevational and microclimatic drivers of thermal tolerance in Andean Pristimantis frogs

Pol Pintanel, Miguel Tejedo, Santiago R. Ron, Gustavo A. Llorente & Andrés Merino-Viteri
Aim: We analysed elevational and microclimatic drivers of thermal tolerance diversity in a tropical mountain frog clade to test three macrophysiological predictions: less spatial variation in upper than lower thermal limits (Bretts’ heat invariant hypothesis); narrower thermal tolerance ranges in habitats with less variation in temperature (Janzen´s climatic variability hypothesis); and higher level of heat impacts at lower altitudes. Location: Forest and open habitats through a 4230 m elevational gradient across the tropical Andes of...

Data from: From nature to the labratory: the impact of founder effects in adaptation

Josiane Santos, Marta Pascual, Pedro Simões, Inês Fragata, Margarida Lima, Bárbara Kellen, Marta Santos, Ana Marques, Michael R. Rose & Margarida Matos
Most founding events entail a reduction of population size, which in turn leads to genetic drift effects that can deplete alleles. Besides reducing neutral genetic variability, founder effects can in principle shift additive genetic variance for phenotypes that underlie fitness. This could then lead to different rates of adaptation among populations that have undergone a population size bottleneck as well as an environmental change, even when these populations have a common evolutionary history. Thus theory...

Data from: Landscape genetics highlights the role of bank vole metapopulation dynamics in the epidemiology of Puumala hantavirus

Emmanuel Guivier, Maxime Galan, Yannick Chaval, Anne Xuéreb, Alexis Ribas Salvador, Marie-Lazzarine Poulle, Liina Voutilainen, Heikki Henttonen, Nathalie Charbonnel & Jean François Cosson
Rodent host dynamics and dispersal are thought to be critical for hantavirus epidemiology as they determine pathogen persistence and transmission within and between host populations. We used landscape genetics to investigate how the population dynamics of the bank vole Myodes glareolus, the host of Puumala hantavirus (PUUV), vary with forest fragmentation and influence PUUV epidemiology. We sampled vole populations within the Ardennes, a French PUUV endemic area. We inferred demographic features such as population size,...

Data from: Postglacial range expansion shaped the spatial genetic structure in a marine habitat-forming species: implications for conservation plans in the Eastern Adriatic Sea

Jean-Baptiste Ledoux, Maša Frleta-Valić, Silvija Kipson, Agostinho Antunes, Emma Cebrian, Cristina Linares, Pablo Sánchez, Raphael Leblois & Joaquim Garrabou
Aim: Understanding how historical and contemporary processes shaped and maintain spatial patterns of genetic diversity is a major goal for conservation biologists. Here, we characterized the pattern of neutral genetic diversity and we inferred underlying processes in the habitat-forming octocoral Paramuricea clavata in the Adriatic Sea, a peculiar phylogeographic region of the Mediterranean Sea. Location: Eastern coast of the Adriatic Sea. Methods: We genotyped seven microsatellites in 454 individuals of P. clavata from 13 populations...

Data from: Differentially expressed mRNA targets of differentially expressed miRNAs predict changes in the TP53 axis and carcinogenesis related pathways in human keratinocytes chronically exposed to arsenic

Laila Al-Eryani, Sabine Waigel, Ashish Tyagi, Jana Peremarti, Samantha F. Jenkins, Chendil Damodaran & J. Christopher States
Background: Arsenic is a widely distributed toxic natural element. Chronic arsenic ingestion causes several cancers, especially skin cancer. Arsenic-induced cancer mechanisms are not well defined, but several studies indicate that mutation is not the driving force and that microRNA expression changes play a role. Chronic low arsenite exposure malignantly transforms immortalized human keratinocytes (HaCaT), serving as a model for arsenic-induced skin carcinogenesis. Hypothesis: Early changes in miRNA expression in HaCaT cells chronically exposed to arsenite...

Data from: An antibody screen of a Plasmodium vivax antigen library identifies novel merozoite proteins associated with clinical protection

Camila T. França, Jessica B. Hostetler, Sumana Sharma, Michael T. White, Enmoore Lin, Benson Kiniboro, Andreea Waltmann, Andrew W. Darcy, Connie S. Li Wai Suen, Peter Siba, Christopher L. King, Julian C. Rayner, Rick M. Fairhurst, Ivo Mueller & Connie S. N. Li Wai Suen
Background. Elimination of Plasmodium vivax malaria would be greatly facilitated by the development of an effective vaccine. A comprehensive and systematic characterization of antibodies to P. vivax antigens in exposed populations is useful in guiding rational vaccine design. Methodology/Principal Findings. In this study, we investigated antibodies to a large library of P. vivax entire ectodomain merozoite proteins in 2 Asia-Pacific populations, analysing the relationship of antibody levels with markers of current and cumulative malaria exposure,...

Diversity mediates the responses of invertebrate density to duration and frequency of rivers’ annual drying regime

Rebeca Arias-Real, Cayetano Gutiérrez-Cánovas, Margarita Menéndez, Verónica Granados & Isabel Muñoz
Predicting the impacts of global change on highly dynamic ecosystems requires a better understanding of how communities respond to disturbance duration, frequency and timing. Intermittent rivers and ephemeral streams are dynamic ecosystems that are recognized as the most common fluvial ecosystem globally. The complexity of the drying process can give rise to different annual and antecedent hydrological conditions, but their effect on aquatic communities remains unclear. Here, using aquatic invertebrates from 33 streams across a...

Predators like it hot: Thermal mismatch in a predator-prey system across an elevational tropical gradient

Pol Pintanel, Pol Pintanel, Miguel Tejedo, Sofia Salinas-Ivanenko, Phillip Jervis & Andrés Merino-Viteri
Climate change may have dramatic consequences for communities through both direct effects of peak temperatures upon individual species and through interspecific mismatches in thermal sensitivities of interacting organisms which mediate changes in interspecific interactions (i.e. predation). Despite this, there is a paucity of information upon the patterns of spatial physiological sensitivity of interacting species (at both landscape and local scales) which could ultimately influence geographical variation in the effects of climate change upon community processes....

Physiology and acclimation potential are tuned with phenology in larvae of a prolonged breeder amphibian

Urtzi Enriquez-Urzelai, Alfredo G. Nicieza, Albert Montori, Gustavo A. Llorente & Miren Bego Urrutia
Due to the speed of climate changes, rapid buffering mechanisms such as phenotypic plasticity – which may depend on breeding phenology – could be key to avoid extinction. The links between phenology and plasticity, however, remain understudied. Here we explored the matching between phenology and the thermal sensitivity of standard (SMR) and routine metabolic rates (RMR), metabolic scope (i.e. the difference between RMR and SMR), survival and growth-development trajectories in larvae of a prolonged breeder...

Librarians as Wikimedia Movement Organizers in Spain: an interpretive inquiry exploring activities and motivations - Dataset

Laurie Bridges & Clara Llebot
This dataset is a list of quotes used in the article "Librarians as Wikimedia Movement Organizers in Spain: An interpretive inquiry exploring activities and motivations", by Laurie Bridges and Clara Llebot. This dataset includes the quotes in the original language (English and Spanish) and, when the original language is not English, the translation to English. We interviewed a total of 18 Spanish librarians in 14 interviews. In the interviews the librarians discussed their use of...

Data from: Seabird diversity hotspot linked to ocean productivity in the Canary Current Large Marine Ecosystem

W. James Grecian, Matthew J. Witt, Martin J. Attrill, Stuart Bearhop, Peter H. Becker, Carsten Egevang, Robert W. Furness, Brendan J. Godley, Jacob González-Solís, David Grémillet, Matthias Kopp, Amélie Lescroël, Jason Matthiopoulos, Samantha C. Patrick, Hans-Ulrich Peter, Richard A. Phillips, Iain J. Stenhouse & Stephen C. Votier
Upwelling regions are highly productive habitats targeted by wide-ranging marine predators and industrial fisheries. In this study, we track the migratory movements of eight seabird species from across the Atlantic; quantify overlap with the Canary Current Large Marine Ecosystem (CCLME) and determine the habitat characteristics that drive this association. Our results indicate the CCLME is a biodiversity hotspot for migratory seabirds; all tracked species and more than 70% of individuals used this upwelling region. Relative...

Data from: The role of morbidly obesity in the promotion of metabolic disruptions and non-alcoholic steatohepatitis by Helicobacter Pylori

Albert Lecube, Silvia Valladares, Carolina Lopez-Cano, Liliana Gutiérrez, Andreea Ciudin, José Manuel Fort, Josep Maria Reñé, Xavier Matias-Guiu, Ines De Torres, Marta Bueno, Judit Pallarés & Juan Antonio Baena
Helicobacter pylori (HP) infection has been associated to an increased rate of type 2 diabetes (T2D) and liver disease through its effect on insulin resistance and systemic inflammation. However, results are inconstant and no studies exist in morbidly obese patients, in which both insulin resistance and inflammation coexist. Material and Methods: Cross-sectional study to evaluate the relationship between HP infection and alterations in carbohydrate metabolism, lipid profile, inflammation markers, and liver disease in patients awaiting...

Data from: Serum-free and xenobiotic-free preservation of cultured human limbal epithelial cells

Oeygunn A. Utheim, Rakibul Islam, Torstein Lyberg, Borghild Roald, Jon Roger Eidet, Maria Fideliz De La Paz, Darlene A. Dartt, Sten Raeder, Tor Paaske Utheim & Oeygunn Utheim
Aim/Purpose of the Study: To develop a one-week storage method, without serum and xenobiotics, that would maintain cell viability, morphology, and phenotype of cultured human limbal epithelial sheets. Materials and Methods: Human limbal explants were cultured on intact human amniotic membranes for two weeks. The sheets were stored in a hermetically sealed container at 23°C in either a serum-free medium with selected animal serum-derived compounds (Quantum 286) or a xenobiotic-free medium (Minimal Essential Medium) for...

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Affiliations

  • University of Barcelona
    140
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  • Estación Biológica de Doñana
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    4
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    4
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    4
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