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4,669 results for “Environment;”
Sex roles in birds: influence of climate, life histories and social environment
<p>For detailed information concerning data collection please see Gonzalez-Voyer et al. Sex roles in birds: phylogenetic analyses of the influence of climate, life histories and social environment. Ecology Letters. Briefly, data on ecology, life histories and behaviour of birds were extracted from published literature. If several data were available for a given species, we included the ones that were extracted from breeding individuals or had larger sample sizes. The details regarding data processing are provided in the Supplementary Material of Gonzalez-Voyer et al. (accepted).</p>
Genetic background and thermal regime influence adaptation to novel environment in the seed beetle, Callosobruchus maculatus
<p>Climate change is associated with the increase in both mean and variability of thermal conditions. Therefore, the use of more realistic fluctuating thermal regimes is the most appropriate laboratory method for predicting population responses to thermal heterogeneity. However, the long- and short-term implications of evolving under such conditions are not well understood. Here, we examined differences in key life history traits among populations of seed beetles (<em>Callosobruchus</em> <em>maculatus</em>) that evolved under either constant control conditions or in an environment with fluctuating daily temperatures. Specifically, individuals from two distinct genetic backgrounds were kept for 19 generations at one of two temperatures, a constant temperature (T=29°C) or a fluctuating daily cycle (T<sub>mean</sub>=33°C, T<sub>max</sub>=40°C, and T<sub>min</sub>=26°C), and were assayed either in their evolved environment or in the other environment. We found that beetles that evolved in fluctuating environments but were then switched to constant 29°C conditions had far greater lifetime reproductive success compared to beetles that were kept in their evolved environments. This increase in reproductive success suggests that beetles raised in fluctuating environments may have evolved greater thermal breadth than control condition beetles. In addition, the degree of sexual dimorphism in body size and development varied as a function of genetic background, evolved thermal environment, and current temperature conditions. These results highlight not only the value of incorporating diel fluctuations into climate research but also suggest that populations that experience variability in temperature may be better able to respond to both short- and long-term changes in environmental conditions.</p>
blaPEC genetic environment
<p>Annotations of the region that sometimes carries <em>bla</em>PEC in <em>Pectobacterium</em>. For untruncated genome, DNA sequence between <em>btsS</em> and <em>glpT</em> was extracted and annotated using Prokka (v1.14.5) with standard parameters. The genomes are designated by their original accession number (GenBank assembly accession).</p> <p>HTML color code used in the main phylogenetic tree from the related paper is specified.</p>
Environment and density-dependency explain the fine-scale distribution of tree recruits before and after thinning
<p>Dataset used in the article "Environment and density-dependency explain the fine-scale distribution of tree recruits before and after thinning" in PeerJ</p>
Exploring Rapid Changes in the Arctic Marine Environment - First ECOTIP Expedition to the Kongsfjorden on Svalbard
<p>Video of flash talk (5 min) given by Claudia Elena Schmidt during the <strong>YOUMARES 11</strong> conference in <strong>Session 4: </strong>Fjord systems: Ecology, bentho-pelagic coupling, and anthropogenic impacts on 15.10.2020 in Hamburg.</p> <p>The Arctic Ocean and its adjacent seas are especially vulnerable to climate change. Its ecosystem is rapidly changing in response to temperature increase, loss of sea ice, and the combined effects of additional stressors such as invasive species and pollution. However, the scientific community currently lacks sufficient information on the mechanisms, drivers and thresholds of these environmental changes on the Arctic ecosystem and the consequences that may arise for many Arctic communities. The recently launched ECOTIP project aims at closing these knowledge gaps by investigating the impacts of climate change on the Arctic marine environment in order to identify tipping points that can induce an abrupt and sometimes irreversible change in the ecosystem. In a joint sampling campaign between the Helmholtz-Zentrum Hereon and the Alfred Wegener Institute (AWI) water and sediment samples from key marine and terrestrial locations in the Kongsfjorden area on the west coast of the Svalbard archipelago were collected in July 2020. The aim of the ongoing study will be to understand the mechanism of carbon cycling in a polar fjord system that is influenced by profound environmental changes by measuring alkalinity and dissolved inorganic carbon (DIC). Furthermore, the biogeochemical cycle of metals, trace metals and other elements in coastal and shelf waters influenced by melt water streams, draining from land terminating glaciers, will be investigated by multi-element analyses. The collected data will provide scientific insight into biogeochemical processes in high-latitude fjord and coastal regions affected by climate change and thus help to predict future changes in Arctic ecosystems.</p>
CUSP - UBC Workshop: Analytics: Characterization and quantification / enumeration of particles in the environment and in tissue
<p>The CUSP-UBC Workshop was held online on 28th January 2022.</p> <p>69 participants took part from across Europe and British Columbia to share experiences, exchange knowledge, and to discuss challenges and solutions as part of a great collaboration between the two clusters.</p> <p><strong>Acknowledgements:</strong></p> <p><strong>Co-Organisation and Cluster Presentations:</strong></p> <p>Lesley Tobin (CUSP Working Group 6 Communication and Dissemination, PlasticsFatE) <a href="mailto:lesley.tobin@optimat.co.uk"> </a><a href="mailto:lesley.tobin@optimat.co.uk">lesley.tobin@optimat.co.uk</a></p> <p>Mahdi Takaffoli (Coordinator, Cluster for Microplastics, Health and the Environment, The University of British Columbia) <a href="mailto:mahdi.takaffoli@ubc.ca">mahdi.takaffoli@ubc.ca</a></p> <p><strong>Presenters:</strong></p> <p><strong>Florian Meirer </strong>(Associate Professor, Inorganic Chemistry and Catalysis research group at Utrecht University; Polyrisk & Aurora)</p> <p>“Characterizing Nanoplastics with Force Microscopy – An Update”) <a href="mailto:F.Meirer@uu.nl">F.Meirer@uu.nl</a></p> <p><strong>Anna Costa</strong> (Environmental Nanotechnology and Nano-Safety group of CNR-ISTEC; PlasticsFatE) “Strategies for MP/NP simulated samples-laboratory tests” <a href="mailto:anna.costa@istec.cnr.it">anna.costa@istec.cnr.it</a></p> <p><strong>Tao Huan</strong> (Assistant Professor, Chemistry, The University of British Columbia)</p> <p>“Pilot Study of the Impact of Microplastics on Cell Liability and Potential Application of Metabolomics in Understanding the Biological Mechanisms” <a href="mailto:thuan@chem.ubc.ca">thuan@chem.ubc.ca</a></p> <p><strong> Edward Grant</strong> (Professor, UBC Chemistry) “The challenge of representative microplastic analysis” edgrant@chem.ubc.ca</p> <p>Thank you to Michelle Epstein, Doctor of Allergy and Clinical Immunology, MedUni Vienna, for such a useful, stimulating idea, and to everyone who took part despite the unsocial hours!</p> <p> </p>
Comparative analysis of surface sanitization protocols on the bacterial community structures in the hospital environment
<p>In this study, we used 16S rRNA gene sequencing approaches to characterize the bacterial microbiota on different surfaces of the hospital environment. The longitudinal data was then subjected to comprehensive comparisons between different sanitation strategies (disinfectants, detergents and probiotics) to measure their potential effect on the microbial community structures in the hospital environment.</p> <p>This archive contains results and data of the 16S rRNA amplicon sequencing performed on 1019 environmental and 271 patient DNA samples collected over the time course of 40 weeks in a newly opened ward in the neurological station at the Charité Hospital (Berlin). The files include a study information and sample metadata sheets, BIOM-tables and information about the taxonomy results and diversity metrics.</p>
What can we learn about transients from the 21 cm line emission in their environments?
<p>I present the result of an observational campaign to map the 21 cm atomic hydrogen line in host galaxies of supernovae (SNe), long gamma-ray bursts (GRBs), and fast radio bursts (FRBs). For all analysed hosts of type Ic-BL SNe and GRBs we found off-centre gas concentrations close to the GRB/SN positions and irregular velocity fields. This suggests a recent gas inflow. This is consistent with GRB/SN progenitors being born when a galaxy accretes metal-poor gas from the intergalactic medium, and opens a possibility to use GRB/SN hosts to study gas accretion. This supports a very massive model for their progenitors. Similarly, the host galaxies of FRBs exhibit very asymmetric 21 cm lines, suggesting a connection between the birth of FRB progenitors and galaxy interactions. On the other hand, the host galaxy of the unusual transient AT 2018cow (the first fast blue optical transient, FBOT) does not exhibit such features, which suggests that its progenitor may not have been a massive star. </p>
Chickpea flowering, carbon isotope, seed weight in a factorial of 20 genotypes and 8 environments
<p>Chickpea was phenotyped for time to flowering, carbon isotope composition at peak biomass, and seed weight at maturity in a factorial combining 20 genotypes, 2 sowing dates, 2 sowing regimes over two seasons. </p>
Underground station environment
<p>An audio-visual model for virtual reality of the Munich underground station Theresienstraße. The model has been created for a highly accurate acoustic rendering over loudspeaker arrays and headphones and for visual representation in virtual reality. The package encompasses a highly accurate spatial geometric model of the underground station, which can be used for acoustic simulations, and a visual model for virtual reality. Both models has been calibrated to a 3D laser scan of the environment. It further includes a definition of two acoustic scenes for the purpose of audiology and hearing research together with the associated measurements of the acoustic impulse responses using a binaural recording system (binaural room impulse responses), a spherical microphone array, and omnidirectional microphones. Further measurements include HRTF measurements and anechoic measurements of the directivity of the sound source.</p>
Data & R Scripts - Jönander et al. (2022) Single substance and mixture toxicity of dibutyl-phthalate and sodium dodecyl sulphate to marine zooplankton. Ecotoxicol. Environ. Saf.
<p>Data and R scripts associated with:</p> <p>Jönander, C., Backhaus, T., Dahllöf, I. (2022) Single substance and mixture toxicity of dibutyl-phthalate and sodium dodecyl sulphate to marine zooplankton. Ecotoxicol. Environ. Saf.</p>
Data from: Evaluating the foraging performance of individual honey bees in different environments with automated field RFID systems
<p>Measuring the individual foraging performances of pollinators is crucial to guide environmental policies that aim at enhancing pollinator health and pollination services. Automated systems have been developed to track the activity of individual honey bees, but their deployment is extremely challenging. This has limited the assessment of individual foraging performances in full-strength bee colonies in the field. Most studies available to date have been constrained to use downsized bee colonies located in urban and suburban areas. Environmental policy-making, on the other hand, needs a more comprehensive assessment of honey bee performances in a broader range of environments, including in remote agricultural and wild areas. Here we detail a new autonomous field method to record high quality data on the flight ontogeny and foraging performance of honey bees, using Radio-Frequency Identification (RFID). We separate bee traffic into returning and exiting tunnels to improve data quality, solving many previous limitations of RFID systems caused by traffic jams and the parasitic coupling of RFID antennae. With this method, we assembled a large RFID dataset made of control bee colonies from experiments conducted in different locations and seasons. We hope our results will be a starting point to understand how ontogenetic and environmental factors affect the individual performances of honey bees, and that our method will enable the large-scale replication of individual pollinator performance studies.</p>
Molecular mechanisms underlying plasticity in a thermally varying environment
<p><span>Adaptation to environmental variability is a prerequisite for species' persistence in their natural environments. With climate change predicted to increase the frequency and severity of temperature fluctuations, ectothermic organisms may increasingly depend on acclimation capacity to accommodate thermal variability. To elucidate the molecular basis of fluctuating temperature induced phenotypic plasticity, we investigated heat tolerance and the mechanisms induced by acclimation to thermal variability as compared to those seen at constant temperature. We ran genome-wide transcriptomic analysis on <em>Drosophila melanogaster</em> subjected to acclimation at constant (19 </span><span>±</span><span> 0</span><span>°</span><span>C) and fluctuating (19 </span><span>±</span><span> 8</span><span>°</span><span>C) temperatures and contrasted the induction of molecular mechanisms in adult males, adult females, and larvae. We found life stage and sex specific dynamics of the acclimation responses to fluctuating temperatures. Adult flies exposed to temperature fluctuations showed a constitutive improvement in heat tolerance while heat tolerance of larvae tracked thermal fluctuations. A constitutive down-regulation of gene expression was observed for several genes in the case of larvae exposed to fluctuations. Our results for adult females showed that, for several genes, fluctuating temperature acclimation resulted in canalization of gene expression. Both transcriptional and post-transcriptional machinery were greatly affected by fluctuations in the case of adult males. Gene ontology analysis showed enrichment of heat stress response involving several major heat shock proteins in both larvae and adults exposed to fluctuating temperatures, even though fluctuations were in a benign range of temperatures. Finally, molecular mechanisms related to environmental sensing seem to be an important component of insect response to thermal variability. </span></p>
The Passenger Experience of Mixed Reality Virtual Display Layouts in Airplane Environments - Participants Questionnaire
<p>Dataset for questionnaire data from the paper "<strong>The Passenger Experience of Mixed Reality Virtual Display Layouts in Airplane Environments</strong>" published at ISMAR 2021</p>
Modeling output for "The dynamic atmospheric and aeolian environment of Jezero crater, Mars"
<p>This dataset contains meso- and microscale numerical modeling output supporting the findings presented in the paper, "Newman et al., The dynamic atmospheric and aeolian environment of Jezero crater, Mars, Science Advances"</p>
Datasets and R-codes complementing the Opinion of the Norwegian Scientific Committee for Food and Environment (VKM) "Risk-Benefit Assessment of Sunscreen"
<p>These datasets complement the Opinion of the Norwegian Scientific Committee for Food and Environment (VKM) "Risk-Benefit Assessment of Sunscreen". They contain:</p> <p>i) data on concentration of the UV filters bis-ethyl-hexyloxyphenol methoxyphenyl triazine (BEMT), butyl methoxydibenzoyl methane (BMDBM), 2-ethylhexyl salicylate (EHS), ethylhexyl triazone (EHT), octocrylene (OC), and titanium dioxide in nanoform (NP-TiO<sub>2</sub>) in commercially available sunscreens,</p> <p>ii) data on amount sunscreen used, and</p> <p>iii) data on dermal absorption of the UV filters bis-ethyl-hexyloxyphenol methoxyphenyl triazine (BEMT), butyl methoxydibenzoyl methane (BMDBM), 2-ethylhexyl salicylate (EHS), ethylhexyl triazone (EHT), octocrylene (OC), and titanium dioxide in nanoform (NP-TiO<sub>2</sub>).</p> <p>The data are used in the probabilistic exposure estimations in the Opinion. The data were retrieved from open sources.</p> <p>In addition, the R-codes used to perform the exposure estimation, are included.</p>
Data Matrix Landmarks in Cluttered Indoor Environments
<p>We used the <a href="https://labelbox.com/">LabelBox</a> online toolbox to create this data set.</p> <p>It consists of 6 different cluttered environments:</p> <ol> <li>a laboratory </li> <li>3 different industrial-like environments </li> <li>a corridor</li> <li>hall</li> </ol> <p>We proposed to split the data set into three sets - training, validation, and test sets - as follows: (1) the training set has 156 frames equally distributed by the laboratory and 1 workshop; (2) the validation set is also divided into two environments - the corridor (158 frames) and a different workshop (66 frames); (3) the test set consists of 145 frames collected on a neat hall with overshadowed and over-lightened landmarks in different planes; a classroom laboratory with various electronic equipment arranged in an orderly manner; and a very challenging scenario with multiple pieces of machinery spread out all over the place.</p> <p>One should filter out images with no markers.</p>
Data of paper Controlling the interfacial reactions and environment of rare-earth ions in thin oxide films towards wafer-scalable quantum technologies
<p>Data of the figures in the paper :</p> <p>N. Harada, A. Tallaire, D. Serrano, A. Seyeux, P. Marcus, X. Portier, C. Labbé, P. Goldner, and A. Ferrier, <em>Controlling the Interfacial Reactions and Environment of Rare-Earth Ions in Thin Oxide Films towards Wafer-Scalable Quantum Technologies</em>, Mater. Adv. <strong>3</strong>, 300 (2022). doi: 10.1039/D1MA00753J</p>
Influence of Titan's Variable Electromagnetic Environment on the Global Distribution of Energetic Neutral Atoms
<p>Data for the manuscript "Influence of Titan's Variable Electromagnetic Environment on the Global Distribution of Energetic Neutral Atoms" by Tippens et al., (2022). See README.txt for a description of the data files included here.</p>
Patch quality and genotype-by-environment interactions shape dispersal and post-settlement survival in a butterfly metapopulation
Active dispersal is driven by extrinsic and intrinsic factors at the three stages of departure, transfer, and settlement. Most empirical studies capture only one stage of this complex process, and knowledge of how much can be generalized from one stage to another remains unknown. Here we use genetic assignment tests to reconstruct dispersal across five years and 232 patches of a butterfly metapopulation. We link individual dispersal events to weather, landscape structure, size and quality of patches, and individual genotype to identify the factors that influence the three stages of dispersal and post-settlement survival. We found that nearly all tested factors strongly affected departure probabilities, but that the same factors explained very little variation in realized dispersal distances. Surprisingly, we found no effect of dispersal distance on post-settlement survival. Rather, survival was influenced by weather conditions, carry-over effects of natal patch quality, and a strong interaction between genotype and occupancy status of the settled patch, with more mobile genotypes having higher survival as colonists rather than as immigrants. Our work highlights the multicausality of dispersal and that some dispersal costs can only be understood by considering extrinsic and intrinsic factors and their interaction across the entire dispersal process.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.