174 Works

B(C6F5)3-Catalyzed Direct C3 Alkylation of Indoles and Oxindoles - data

Shyam Basak, Ana Alvarez-Montoya, Laura Winfrey, Rebecca L Melen, Louis C Morrill & Alexander P Pulis
The direct C3 alkylation of indoles and oxindoles is a challenging transformation and only a few direct methods exist. Utilizing the underexplored ability of triaryl boranes to mediate the heterolytic cleavage of α-nitrogen C–H bonds in amines, we have developed a catalytic approach for the direct C3 alkylation of a wide range of indoles and oxindoles using amine based alkylating agents. We also employed this borane-catalyzed strategy in an alkylation-ring opening cascade. Analysis of reaction...

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...

Survey data for US and UK on Public risk perceptions of carbon dioxide removal

Emily Cox, Elspeth Spence & Nicholas Pidgeon

Data from: Demography and rapid local adaptation shape Creole cattle genome diversity in the tropics

Daniel Pitt, Michael W. Bruford, Mario Barbato, Pablo Orozco-TerWengel, Rodrigo Martinez & Natalia Sevane
The introduction of Iberian cattle in the Americas after Columbus’ arrival imposed high selection pressures on a limited number of animals over a brief period of time. Knowledge of the genomic regions selected during this process may help in enhancing climatic resilience and sustainable animal production. We first determined taurine and indicine contributions to the genomic structure of modern Creole cattle. Second, we inferred their demographic history using approximate Bayesian computation (ABC), linkage disequilibrium (LD),...

Data from: The choice of universal primers and the characteristics of the species mixture determines when DNA metabarcoding can be quantitative.

Josep Pinol, Miquel Angel Senar, William O C Symondson & William O. C. Symondson
DNA metabarcoding is a technique used to survey biodiversity in many ecological settings, but there are doubts about whether it can provide quantitative results, i.e. the proportions of each species in the mixture as opposed to a species list. While there are several experimental studies that report quantitative metabarcoding results, there are a similar number that fail to do so. Here we provide the rationale to understand under what circumstances the technique can be quantitative....

Data from: Walking in a heterogeneous landscape: dispersal, gene-flow and conservation implications for the giant panda in the Qinling Mountains

Tianxiao Ma, Yibo Hu, Isa-Rita Russo, Yonggang Nie, Tianyou Yang, Lijuan Xiong, Shuai Ma, Tao Meng, Han Han, Ximing Zhang, Mike W. Bruford, Fuwen Wei, Isa-Rita M. Russo & Michael W. Bruford
Understanding the interaction between life history, demography and population genetics in threatened species is critical for the conservations of viable populations. In the context of habitat loss and fragmentation, identifying the factors that underpin the structuring of genetic variation within populations can allow conservationists to evaluate habitat quality and connectivity and help to design dispersal corridors effectively. In this study, we carried out a detailed, fine-scale landscape genetic investigation of a giant panda population for...

Bacterial community structure and soil process data from a sewage sludge amended upland grassland soil experiment, 2000 [NERC Soil Biodiversity Programme]

N.D. Gray, R.C. Hastings, S.K. Sheppard, P. Loughnane, D. Lloyd, A.J. McCarthy & I.M. Head
This set of data comprises temporal temperature gradient electrophoresis (TTGE) and soil process measurements, used to analyse the effects of perturbations (sludge and/or lime application) on the structure, community development and activity of bacteria that catalyse fundamental processes in upland soils. These were collected to address the following questions: Do soil improvement treatments select for particular components of bacterial populations and hence drive community development? If so, at what functional and phylogenetic level is this...

Data from: Transmission risk predicts avoidance of infected conspecifics in Trinidadian guppies

Jessica F. Stephenson, Sarah E. Perkins & Joanne Cable
1.Associating with conspecifics afflicted with infectious diseases increases the risk of becoming infected, but engaging in avoidance behaviour incurs the cost of lost social benefits. Across systems, infected individuals vary in the transmission risk they pose, so natural selection should favour risk‐sensitive avoidance behaviour that optimally balances the costs and benefits of sociality. 2.Here we use the guppy Poecilia reticulata‐Gyrodactylus turnbulli host‐parasite system to test the prediction that individuals avoid infected conspecifics in proportion to...

Data from: Supplemental food alters nest defence and incubation behaviour of an open-nesting wetland songbird

Jim O. Vafidis, Richard J. Facey, David Leech & Robert J. Thomas
Climate-driven increases in spring temperatures are expected to result in higher prey availability earlier in the breeding season for insectivorous birds breeding in wetland habitats. Predation during the incubation phase is a major cause of nesting failure in open-nesting altricial birds such as the Eurasian reed warbler. The nest predation rate in this species has recently been shown to be substantially reduced under conditions of experimentally elevated invertebrate prey availability. Food availability near the nest...

Data from: Genetic diversity and parasite facilitated establishment of the invasive signal crayfish (Pacifastacus leniusculus) in Great Britain

Chloe Victoria Robinson, Carlos Garcia De Leaniz, Joanna James, Joanne Cable, Pablo Orozco-TerWengel & Sofia Consuegra
Successful establishment of non‐native species is strongly influenced, among other factors, by the genetic variation of founding populations, which can be enhanced by multiple introductions through admixture. Coexisting pathogens can also facilitate the establishment of non‐native species by detrimentally impacting on the native fauna acting as novel weapons. The signal crayfish (Pacifastacus leniusculus) is a highly invasive species, which has caused mass declines of native crayfish in Europe through displacement and transmission of the oomycete...

Data from: The diet of a nocturnal pelagic predator, the Bulwer’s petrel, across the lunar cycle

S. Waap, W. O. C. Symondson, J. P. Granadeiro, H. Alonso, C. Serra-Gonçalves, M. P. Dias & P. Catry
The lunar cycle is believed to strongly influence the vertical distribution of many oceanic taxa, with implications for the foraging behaviour of nocturnal marine predators. Most studies to date testing lunar effects on foraging have focused on predator activity at-sea, with some birds and marine mammals demonstrating contrasting behavioural patterns, depending on the lunar-phase. However, to date no study has focused on how the lunar cycle might actually affect predator-prey interactions in the upper layers...

Algal primary production of Welsh upland rivers in response to organic matter addition (2013)

I. Durance, H.B. Feeley, S.J. Ormerod, M.C. Pye, A-L. Sauvadet, C. Gutierrez-Canovas & G. Woodward
These data are algal production values in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). In order to characterise the algal production of...

Leaf litter decomposition in Welsh upland rivers in response to organic matter addition (2012 - 2013)

I. Durance, H.B. Feeley, D.M. Perkins, M.C. Pye, C. Gutierrez-Canovas, S.J. Ormerod & G. Woodward
These data are leaf litter decomposition rate in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as a control (no addition of deciduous leaves). To characterise the leaf litter decomposition of...

Data from: Adaptive evolution during an ongoing range expansion: the invasive bank vole (Myodes glareolus) in Ireland.

Thomas A. White, Sarah E. Perkins, Gerald Heckel & Jeremy B. Searle
Range expansions are extremely common, but have only recently begun to attract attention in terms of their genetic consequences. As populations expand, demes at the wave front experience strong genetic drift, which is expected to reduce genetic diversity and potentially cause 'allele surfing', where alleles may become fixed over a wide geographic area even if their effects are deleterious. Previous simulation models show that range expansions can generate very strong selective gradients on dispersal, reproduction,...

Data from: The genetic legacy of the 19th century decline of the British polecat: evidence for extensive introgression from feral ferrets

Mafalda Costa, Carlos Fernandes, Johnny D. S. Birks, Andrew C. Kitchener, Margarida Santos-Reis, Mike W. Bruford, M. Costa, C. Fernandes, M. Santos-Reis, A. C. Kitchener & M. W. Bruford
In the 19th century, the British polecat suffered a demographic contraction, as a consequence of direct persecution, reaching its lowest population in the years that preceded the First World War. The polecat is now recovering and expanding throughout Britain, but introgressive hybridization with feral ferrets has been reported, which could be masking the true range of the polecat and introducing domestic genes into the species. We used a fragment of the mitochondrial DNA control region...

Data from: Living on a volcano's edge: genetic isolation of an extremophile terrestrial metazoan

Luis Cunha, Rafael Montiel, Marta Novo, Pablo Orozco-TerWengel, Armindo Rodrigues, A. J. Morgan & Peter Kille
Communities of organisms inhabiting extreme terrestrial environments provide a unique opportunity to study evolutionary forces that drive population structure and genetic diversity under the combined challenges posed by multiple geogenic stressors. High abundance of an invasive pantropical earthworm (and the absence of indigenous lumbricid species) in the Furnas geothermal field (Sao Miguel Island, Azores) indicates its remarkable tolerance to high soil temperature, exceptionally high carbon dioxide and low oxygen levels, and elevated metal bioavailability, conditions...

Data from: Endemic infection reduces transmission potential of an epidemic parasite during co-infection

Joanna Randall, Joanne Cable, Irina A. Guschina, John L. Harwood, Joanne Lello, J. Cable, I. A. Guschina, J. L. Harwood, J. Lello & J. Randall
Endemic, low-virulence parasitic infections are common in nature. Such infections may deplete host resources, which in turn could affect the reproduction of other parasites during co-infection. We aimed to determine whether the reproduction, and therefore transmission potential, of an epidemic parasite was limited by energy costs imposed on the host by an endemic infection. Total lipids, triacylglycerols (TAG) and polar lipids were measured in cockroaches (Blattella germanica) that were fed ad libitum, starved or infected...

Data from: An integrative approach to detect subtle trophic niche differentiation in the sympatric trawling bat species Myotis dasycneme and Myotis daubentonii

Frauke Krüger, Elizabeth L. Clare, Stefan Greif, Bjoern M. Siemers, William O. C. Symondson & Robert S. Sommer
Bats are well known for species richness and ecological diversity thus they provide a good opportunity to study relationships and interaction between species. To assess interactions we consider distinct traits which are likely to be triggered by niche shape and evolutionary processes. We present data on the trophic niche differentiation between two sympatric European trawling bat species, Myotis dasycneme and M. daubentonii, incorporating a wide spectrum of methodological approaches. We measure morphological traits involved in...

Data from: Mitochondrial introgressive hybridization following a demographic expansion in the tomato frogs of Madagascar, genus Dyscophus

Pablo Orozco-TerWengel, Franco Andreone, & Miguel Vences
Madagascar is a biodiversity hotspot with a unique fauna and flora largely endemic at the species level and highly threatened by habitat destruction. The processes underlying population-level differentiation in Madagascar's biota are poorly understood and have been proposed to be related to Pleistocene climatic cycles, yet the levels of genetic divergence observed are often suggestive of ancient events. We combined molecular markers of different variability to assess the phylogeography of Madagascar's emblematic tomato frogs (Dyscophus...

Data from: Y chromosome haplotype distribution of brown bears (Ursus arctos) in Northern Europe provides insight into population history and recovery (Ursus arctos)

Julia Schregel, Hans Geir Eiken, Finn Audun Grøndahl, Frank Hailer, Jouni Aspi, Ilpo Kojola, Konstantin Tirronen, Pjotr Danilov, Alexander Rykov, Eugene Poroshin, Axel Janke, Jon E. Swenson, Snorre B. Hagen & Piotr Danilov
High-resolution, male-inherited Y-chromosomal markers are a useful tool for population genetic analyses of wildlife species, but to date have only been applied in this context to relatively few species besides humans. Using nine Y-chromosomal STR and three Y-chromosomal single nucleotide polymorphism markers (Y-SNPs), we studied whether male gene flow was important for the recent recovery of the brown bear (Ursus arctos) in Northern Europe, where the species declined dramatically in numbers and geographic distribution during...

Grain size data from rock deformation experiments on chlorite, epidote, and amphibole-rich samples

Ake Fagereng & Matt J Ikari
Laboratory shearing experiments were conducted on samples of chlorite schist, epidotite, and a hornblende-rich amphibolite. The samples were powdered to a starting grain size of < 125 µm before experiments were started. The experiments were conducted at room temperature, under fluid-saturated conditions and an applied normal stress of 10 MPa in a single-direct shear device at Marum Research Faculty at the University of Bremen, Germany. This apparatus induces planar shear by displacing the plates relative...

Unravelling the early oxidation mechanism of zinc phosphide (Zn3P2) surfaces by adsorbed oxygen and water: a first-principles DFT-D3 investigation

Nelson Y Dzade
Zinc phosphide (Zn3P2) is a novel earth-abundant photovoltaic material with a direct bandgap of 1.5 eV. Herein, the incipient oxidation mechanism of the (001), (101), and (110) Zn3P2 surfaces in the presence of oxygen and water, which severely limits the fabrication of efficient Zn3P2-based photovoltaics has been investigated in detail by means of dispersion-corrected density functional theory (DFT-D3) calculations. The fundamental aspects of the oxygen and water adsorption, including the initial adsorption geometries, adsorption energies,...

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...

Thermoluminescence, Photoluminescence and Optically Stimulated Luminescence Characteristics of CaSO4:Eu Phosphor: An Experimental and Density Functional Theory (DFT) Investigation - dataset

Nandkumar T Mandlik, Sachin R Rondiya, Nelson Y Dzade, M S Kulkarni, P D Sahare, B C Bhatt & S D Dhole
In the present report, CaSO4:Eu in the nanocrystalline form have been synthesized by chemical method and studied its luminescence properties. The thermoluminescence (TL) and optically stimulated luminescence (OSL) response of the CaSO4:Eu nanophosphor have been investigated up to 100 Gy and theoretical fitting of the OSL decay curve is done. First-principles Density Functional Theory (DFT) calculations have also been performed to gain atomistic insights into the luminescence properties of the pure CaSO4 and CaSO4:Eu materials,...

Data from: A new earthworm species within a controversial genus: Eiseniona gerardoi sp. n. (Annelida, Lumbricidae) - description based on morphological and molecular data.

Marta Novo, Rosa Fernández, Mónica Gutiérrez, Dario J. Díaz Cosín, Daniel Fernández Marchán & Dario Diaz Cosin
The morphological and anatomical simplicity of soil dwelling animals, such as earthworms, has limited the establishment of a robust taxonomy making it sometimes subjective to authors’ criteria. Within this context, integrative approaches including molecular information are becoming more popular to solve the phylogenetic positioning of conflictive taxa. Here we present the description of a new lumbricid species from the region of Extremadura (Spain), Eiseniona gerardoi sp. n. The assignment to this genus is based on...

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  • Cardiff University
  • University of Bristol
  • Imperial College London
  • Queen Mary University of London
  • Max Planck Institute for Ornithology
  • Technische Universität Braunschweig
  • University of Oslo
  • University of the West of England
  • University of Bath
  • University of Sussex