132 Works

Altering the conductivity of CuO through the formation of intrinsic defects - data

Aleksandar Živković & Nora H De Leeuw
To explore the possibility of improving the photovoltaic properties of CuO, its intrinsic defect properties need to be studied. Datasets arising from density functional theory based calculations are provided in the .xlsx format (can be viewed either by MS Office or Libre Office) comprising 3 data sheets which correspond to the structural, defect formation energies, and electronic properties of CuO with native impurities introduced within. Each sheet has a text header with descriptive data and...

Interaction of SO2 with the Platinum (001), (011) and (111) Surfaces: A DFT Study - data

Marietjie J Ungerer, David Santos-Carballal, Abdelaziz Cadi-Essadek, Cornelia G C E Van Sittert & Nora H De Leeuw
>Density functional theory (DFT) calculations were uasd with long-range dispersion corrections to study the interaction of SO2 with Pt (001), (011), and (111) surfaces. Platinum is a noble metal that is widely used for the electro-catalytic production of H2, which surface reactivity towards SO2 is not yet fully understood. The work involved studying the surface energies of the mayor Pt surfaces with 4 layers, adsorption energy for SO2 on these surfaces, the thermodynamic effect of...

Data supplement to: Fiehn et al (2020): Estimating CH4, CO2, and CO emissions from coal mining and industrial activities in the Upper Silesian Coal Basin using an aircraft-based mass balance approach

Alina Fiehn, Julian Kostinek, Maximillian Ecki, Theresa Klausner, Michał Gałkowski, Jinxuan Chen, Christoph Gerbig, Thomas Röckmann, Hossein Maazallahi, Martina Schmidt, Piotr Korbeń, Jarosław Nȩcki, Paweł Jagoda, Norman Wildmann, Christian Mallaun, Rostyslav Bun, Anna-Leah Nicki, Patrick Jöckel, Andreas Fix & Anke Rolger
Supplementary data with CO2 and CH4 observations from in situ and airplane platforms during a campaign over the Upper Silesian Coal Basin (USCB), Poland, in summer 2018. The campaign is described in the paper: Fiehn, A., Kostinek, J., Eckl, M., Klausner, T., Gałkowski, M., Chen, J., Gerbig, C., Röckmann, T., Maazallahi, H., Schmidt, M., Korbeń, P., Nȩcki, J., Jagoda, P., Wildmann, N., Mallaun, C., Bun, R., Nickl, A.-L., Jöckel, P., Fix, A., and Roiger, A.:...

Iron-Nickel-Sulfide Characterisation and Catalytic Testing Data

Claire Mitchell, David Santos-Carballal, Andrew M Beale, Wilm Jones, Sankar Meenakshisundaram & Nora H De Leeuw
Catalytic data describing the production of formate from the hydrogenation of CO2 using iron-sulfide, iron-nickel-sulphide and nickel-sulfide catalysts prepared with different heat treatments under a range of reaction conditions. Catalyst characterisation of these materials include XRD analysis, giving an understanding of the violarite phase and crystallinity. XPS analysis gains understanding of the iron, nickel and sulphur species, and how sulphide and oxide species change under thermal oxidation. XAS analysis employed is vital to gain more...

Data from: Low fitness at low latitudes: wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird

Jeroen Reneerkens, Tom S.L. Versluijs, Theunis Piersma, Jose Alves, Mark Boorman, Colin Corse, Olivier Gilg, Gunnar Hallgrimsson, Johannes Lang, Bob Loos, Yaa Ntiamoa-Baidu, Alfred Nuoh, Peter Potts, Job Ten Horn & Tamar Lok
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non-breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55° N and 25° S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West-Africa (Mauritania: 0.74 and...

Data from: Patients’ experiences with a behaviour change intervention to enhance physical activity in primary care: a mixed methods study

Heleen Westland, Jill Sluiter, Sophie Te Dorsthorst, Carin D. Schröder, Jaap C. A. Trappenburg, Sigrid C. J. M. Vervoort & Marieke J. Schuurmans
Objective: To explore the experiences of patients at risk for cardiovascular disease in primary care with the Activate intervention in relation to their success in increasing their physical activity. Methods: A convergent mixed-methods design, parallel to a cluster-randomised controlled trial in primary care, using a questionnaire and semi-structured interviews was conducted. Questionnaires from 67 patients were analysed, and semi-structured interviews of 22 patients were thematically analysed. Experiences of patients who had objectively increased their physical...

Data from: Cooperation with closely bonded individuals reduces cortisol levels in long-tailed macaques

Martina Stocker, Matthias-Claudio Loretto, Elisabeth H.M. Sterck, Thomas Bugnyar & Jorg J.M. Massen
Many animal species cooperate with conspecifics in various social contexts. While ultimate causes of cooperation are being studied extensively, its proximate causes, particularly endocrine mechanisms, have received comparatively little attention. Here, we present a study investigating the link between the hormone cortisol, cooperation and social bonds in long-tailed macaques (Macaca fascicularis). We tested 14 macaques in a dyadic cooperation task (loose-string paradigm), each with two partners of different social bond strength and measured their salivary...

Fast and furious: Early differences in growth rate drive short-term plant dominance and exclusion under eutrophication

Yann Hautier, Zhang Pengfei, Mariet Hefting, Merel Soons, George Kowalchuk, Mark Rees, Andrew Hector, Lindsay Turnbull, Xiaolong Zhou, Zhi Guo, Chengjin Chu, Guozhen Du & Yann Hautier
1. The reduction of plant diversity following eutrophication threatens many ecosystems worldwide. Yet, the mechanisms by which species are lost following nutrient enrichment are still not completely understood, nor are the details of when such mechanisms act during the growing season, which hampers understanding and the development of mitigation strategies. 2. Using a common garden competition experiment, we found that early-season differences in growth rates among five perennial grass species measured in monoculture predicted short-term...

Global patterns of the leaf economics spectrum in wetlands

Yingji Pan, Ellen Cieraad, Jean Armstrong, William Armstrong, Beverley Clarkson, Timothy Colmer, Ole Pedersen, Eric Visser, Laurentius Voesenek & Peter Van Bodegom
The leaf economics spectrum (LES) describes consistent correlations among a variety of leaf traits that reflect a gradient from conservative to acquisitive plant strategies. So far, whether the LES holds in wetland plants at a global scale has been unclear. Using data on 365 wetland species from 151 studies, we find that wetland plants in general show a shift within trait space along the same common slope as observed in non-wetland plants, with lower leaf...

High spatial resolution mapping identifies habitat characteristics of the invasive vine Antigonon leptopus on St. Eustatius (Lesser Antilles)

Elizabeth Haber, Maria Santos, Pedro Leitão, Marcel Schwieder, Pieter Ketner, Joris Ernst, Max Rietkerk, Martin Wassen & Maarten Eppinga
On the Caribbean island of St. Eustatius, Coralita (Antigonon leptopus) is an aggressive invasive vine posing major biodiversity conservation concerns. The generation of distribution maps can address these conservation concerns by helping to elucidate the drivers of invasion. We test the use of support vector machines to map the distribution of Coralita on St. Eustatius at high spatial resolution and use this map to identify potential landscape and geomorphological factors associated with Coralita presence. This...

Data from: Genetic origin, admixture and population history of aurochs (Bos primigenius) and primitive European cattle

Maulik R. Upadhyay, Wei Chen, Johannes A. Lenstra, C. R. J. Goderie, David E. MacHugh, Stephen D. E. Park, David A. Magee, Donato Matassino, Ferdinando Ciani, Hendrik-Jan Megens, J. A. M. Van Arendonk, Martien A. M. Groenen, European Cattle Genetic Diversity Consortium & Richard P. M. A. Crooijmans
The domestication of taurine cattle initiated ~10 000 years ago in the Near East from a wild aurochs (Bos primigenius) population followed by their dispersal through migration of agriculturalists to Europe. Although gene flow from wild aurochs still present at the time of this early dispersion is still debated, some of the extant primitive cattle populations are believed to possess the aurochs-like primitive features. In this study, we use genome-wide single nucleotide polymorphisms to assess...

Data from: Bacterial diversity amplifies nutrient-based plant-soil feedbacks

Simone Weidner, Robert Koller, Ellen Latz, George Kowalchuk, Michael Bonkowski, Stefan Scheu & Alexandre Jousset
Plants foster diverse assemblages of bacteria in the rhizosphere serving important functions which may result in enhanced plant growth. Microbial diversity is increasingly recognized to shape the functionality of microbial communities. This leads to the assumption that there is a positive relationship between rhizosphere diversity and plant growth. Here we investigate how bacterial diversity affects the mineralization of organic matter and plant nutrient acquisition. We hypothesized that altered bacterial diversity will affect nitrogen mineralisation, uptake...

Data from: Faunal community consequence of interspecific bark trait dissimilarity in early-stage decomposing logs

Juan Zuo, Matty Berg, Roy Klein, Jasper Nusselder, Gert Neurink, Orsi Decker, Mariet M. Hefting, Ute Sass-Klaassen, Richard S. P. Van Logtestijn, Leo Goudzwaard, Jurgen Van Hal, Frank J. Sterck, Lourens Poorter, Johannes H. C. Cornelissen & Matty P. Berg
Dead tree trunks have significant ecosystem functions related to biodiversity and biogeochemical cycles. When lying on the soil surface, they are colonized by an array of invertebrate fauna, but what determines their community composition is still unclear. We apply community assembly theory to colonization of tree logs by invertebrates. During early decomposition, the attached bark is critically important as an environment filter for community assembly through habitat provision. Specifically, we hypothesized that the more dissimilar...

Data from: Modelling dynamics in protein crystal structures by ensemble refinement

B. Tom Burnley, Pavel V. Afonine, Paul D. Adams & Piet Gros
Single-structure models derived from X-ray data do not adequately account for the inherent, functionally important dynamics of protein molecules. We generated ensembles of structures by time-averaged refinement, where local molecular vibrations were sampled by molecular-dynamics (MD) simulation whilst global disorder was partitioned into an underlying overall translation–libration–screw (TLS) model. Modeling of 20 protein datasets at 1.1–3.1 Å resolution reduced cross-validated R_free values by 0.3–4.9%, indicating that ensemble models fit the X-ray data better than single...

Data from: Miocene flooding events of western Amazonia

Carlos Jaramillo, Ingrid Romero, Carlos D'Apolito, German Bayona, Edward Duarte, Stephen Louwye, Jaime Escobar, Javier Luque, Jorge D. Carrillo-Briceño, Vladimir Zapata, Andrés Mora, Stefan Schouten, Michael Zavada, Guy Harrington, John Ortiz & Frank P. Wesselingh
There is a considerable controversy about whether western Amazonia was ever covered by marine waters during the Miocene [23 to 5 Ma (million years ago)]. We investigated the possible occurrence of Miocene marine incursions in the Llanos and Amazonas/Solimões basins, using sedimentological and palynological data from two sediment cores taken in eastern Colombia and northwestern Brazil together with seismic information. We observed two distinct marine intervals in the Llanos Basin, an early Miocene that lasted...

Data from: Periphyton density is similar on native and non-native plant species

Bart M. C. Grutters, Elisabeth Maria Gross, Ellen Van Donk & Elisabeth S. Bakker
Non-native plants increasingly dominate the vegetation in aquatic ecosystems and thrive in eutrophic conditions. In eutrophic conditions, submerged plants risk being overgrown by epiphytic algae; however, if non-native plants are less susceptible to periphyton than natives, this would contribute to their dominance. Non-native plants may differ from natives in their susceptibility to periphyton growth due to differences in nutrient release, allelopathy and architecture. Yet, there is mixed evidence for whether plants interact with periphyton growth...

Data from: Parasites and competitors suppress bacterial pathogen synergistically due to evolutionary trade-offs

XiaoFang Wang, Zhong Wei, Mei Li, Xueqi Wang, Anqi Shan, Xinlan Mei, Alexandre Jousset, Qirong Shen, Yangchun Xu & Ville-Petri Friman
Parasites and competitors are important for regulating pathogen densities and subsequent disease dynamics. It is, however, unclear to what extent this is driven by ecological and evolutionary processes. Here we used experimental evolution to study the eco-evolutionary feedbacks between Ralstonia solanacearum bacterial pathogen, Ralstonia-specific phage parasite and Bacillus amyloliquefaciens competitor bacterium in the laboratory and plant rhizosphere. We found that while the phage had a small effect on pathogen densities on its own, it considerably...

Data from: Food webs obscure the strength of plant diversity effects on primary productivity

Eric W. Seabloom, Linda Kinkel, Elizabeth T. Borer, Yann Hautier, Rebecca A. Montgomery & David Tilman
Plant diversity experiments generally find that increased diversity causes increased productivity; however, primary productivity is typically measured in the presence of a diverse food web, including pathogens, mutualists and herbivores. If food web impacts on productivity vary with plant diversity, as predicted by both theoretical and empirical studies, estimates of the effect of plant diversity on productivity may be biased. We experimentally removed arthropods, foliar fungi and soil fungi from the longest-running plant diversity experiment....

Data from: Sex-related online behaviors, perceived peer norms and adolescents’ experience with sexual behavior: testing an integrative model

Suzan M. Doornwaard, Tom F. M. Ter Bogt, Ellen Reitz & Regina J. J. M. Van Den Eijnden
Research on the role of sex-related Internet use in adolescents’ sexual development has often isolated the Internet and online behaviors from other, offline influencing factors in adolescents’ lives, such as processes in the peer domain. The aim of this study was to test an integrative model explaining how receptive (i.e., use of sexually explicit Internet material [SEIM]) and interactive (i.e., use of social networking sites [SNS]) sex-related online behaviors interrelate with perceived peer norms in...

Thermal properties and segregation behaviour of Pt nanowires modified with Au, Ag and Pd atoms: A Classical Molecular Dynamics Study - data

Thobani G Gambu, Umberto Terranova, David Santos-Carballal, Melissa A Petersen, Glenn Jones, Eric Van Steen & Nora H De Leeuw
The thermal properties of bimetallic Pt nanowires have been investigated using classical interatomic potentials. Edge decorated Pt nanowires may improve the inter-facet exchange of reaction intermediates resulting in improved oxygen reduction reaction activities at fuel call cathode electrodes. In this work we report on the melting behaviour of Pt-based nanowires where either an edge atomic row or atomic shell of Pt nanowires are substituted by Au, Ag or Pd. Our overall intention is to find...

Data from: Drivers of plant traits that allow survival in wetlands

Yingji Pan, Ellen Cieraad, Bev Clarkson, Tim Colmer, Ole Pedersen, Eric Visser, Laurentius A.C.J. Voesenek & Peter Van Bodegom
Plants have developed a suite of traits to survive the anaerobic and anoxic soil conditions in wetlands. Previous studies on wetland plant adaptive traits have focused mainly on physiological aspects under experimental conditions, or compared the trait expression of the local species pool. Thus, a comprehensive analysis of potential factors driving wetland plant adaptive traits under natural environmental conditions is still missing. In this study, we analysed three important wetland adaptive traits, i.e. root porosity,...

Species responses to changing precipitation depends on trait plasticity rather than trait means and intraspecific variation

Bingwei Zhang, Yann Hautier, Xingru Tan, Cuihai You, Marc Cadotte, Chengjin Chu, Lin Jiang, Xinghua Sui, Tingting Ren, Xingguo Han & Shiping Chen
1. Trait-based approaches are key to develop mechanistic understanding of differences in plant species performance under environmental change. While mean trait values have been widely used to link functional traits to species performance, the contribution of intraspecific trait variation and trait plasticity remains unclear. Moreover, environmentally induced changes in species biomass is caused by changes in the number of individuals and individual growth rate, both of which should be influenced by trait differences and plasticity....

Conservation of Birds in Fragmented Landscapes Requires Protected Areas

Robert Timmers, Marijke Van Kuijk, Pita Verweij, Jaboury Ghazoul, Yann Hautier, William Laurance, Stefan Arriaga-Weiss, Robert Askins, Corrado Battisti, Åke Berg, Gretchen Daily, Cristián Estades, Beatrice Frank, Reiko Kurosawa, Rosamund Pojar, John Woinarski & Merel Soons
For successful conservation of biodiversity, it is vital to know whether protected areas in increasingly fragmented landscapes effectively conserve species. However, how large habitat fragments must be and what level of protection is required to sustain species, remains poorly known. We compiled a global dataset on almost 2000 bird species in 741 forest fragments varying in size and protection status, and show that protection is associated with higher bird occurrence, especially for threatened species. Protection...

Data from: Chicken gut microbiome members limit the spread of an antimicrobial resistance plasmid in Escherichia coli

Sarah Duxbury, Jesse Alderliesten, Mark Zwart, Arjan Stegeman, Egil Fischer & Arjan De Visser
Plasmid-mediated antimicrobial resistance is a major contributor to the spread of resistance genes within bacterial communities. Successful plasmid spread depends upon a balance between plasmid fitness effects on the host and rates of horizontal transmission. While these key parameters are readily quantified in vitro, the influence of interactions with other microbiome members is largely unknown. Here, we investigated the influence of three genera of lactic acid bacteria (LAB) derived from the chicken gastrointestinal microbiome on...

On the social and cognitive dimensions of wicked environmental problems characterized by conceptual and solution uncertainty

Felber J. Arroyave B., Oscar Yandy Romero Goyeneche, Meredith Gore, Gaston Heimeriks, Jeffrey Jenkins & Alexander M. Petersen
We develop a quantitative framework for understanding the class of wicked problems that emerge at the intersections of “natural”, social, and technological complex systems. Wicked problems reflect our incomplete understanding of interdependent global systems and the systemic risk they pose; such problems escape solutions because they are often ill-defined, and thus misidentified and under-appreciated by communities of problem-solvers. While there are well-documented benefits to tackling boundary-crossing problems from various viewpoints, the integration of diverse approaches...

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