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12,662 results for “linking”
Evidence of links between haematological condition and foraging behaviour in Northern gannets (Morus bassanus)
<p><span><span><span><span><span><span><span><span><span><span><span>Haematological analyses can reveal the physiological condition of birds, who are known to efficiently disguise symptoms of stress and disease. However, interpretation of such analyses requires species-specific baseline data, which are lacking for most free-living seabird species. We provide baseline reference data for several haematological parameters in Northern gannets (<i>Morus bassanus</i>) and combine this with telemetry and dietary data to understand the links between haemotologic condition and foraging behaviour. Blood samples were collected from breeding Northern gannets in July 2017 (n = 15) and 2018 (n = 28), which were also equipped with GPS tags. Smears were prepared for performing blood cell counts, including immature erythrocyte and microcyte percentages, total and differential leucocyte counts, heterophil:lymphocyte (H:L) ratio, and total thrombocyte count, the remaining blood was used for stable isotope analysis, and foraging behaviours were inferred from the recovered tag data. Blood cell counts revealed that the sampled birds were highly stressed and some showed an immune response, evident from the abnormal leucocyte counts and H:L ratio. There were no sex-related differences in haematological parameters or diet, in contrast to foraging parameters where females undertook longer trips than males and spent proportionately more time in search behaviours. The percentage time spent actively foraging was negatively correlated with the percentage of eosinophils. While there was no direct link between haematologic condition and diet, one bird feeding at a relatively low trophic level undertook exceptionally short foraging trips and showed abnormal blood cell counts. This suggests a link between haematologic condition and foraging ecology that can be employed in assessing seabird health.</span></span></span></span></span></span></span></span></span></span></span></p>
Data from: Diet reveals links between morphology and foraging in a cryptic temperate reef fish
Predators select prey so as to maximize energy and minimize manipulation time. In order to reduce prey detection and handling time, individuals must actively select their foraging space (microhabitat) and populations exhibit morphologies that are best suited for capturing locally available prey. We explored how variation in diet correlates with habitat type, and how these factors influence key morphological structures (mouth gape, eye diameter, fin length, fin area, and pectoral fin ratio) in a common microcarnivorous cryptic reef fish species, the triplefin Helcogrammoides cunninghami. In a mensurative experiment carried out at six kelp-dominated sites, we observed considerable differences in diet along 400 km of the Chilean coast coincident with variation in habitat availability and prey distributions. Triplefins preferred a single prey type (bivalves or barnacles) at northern sites, coincident with a low diversity of foraging habitats. In contrast, southern sites presented varied and heterogeneous habitats, where triplefin diets were more diverse and included amphipods, decapods, and cumaceans. Allometry-corrected results indicated that some morphological structures were consistently correlated with different prey items. Specifically, large mouth gape was associated with the capture of highly mobile prey such as decapods, while small mouth gape was more associated with cumaceans and copepods. In contrast, triplefins that capture sessile prey such as hydroids tend to have larger eyes. Therefore, morphological structures co-vary with habitat selection and prey usage in this species. Our study shows how an abundant generalist reef fish exhibits variable feeding morphologies in response to the distribution of potential habitats and prey throughout its range.
Data from: Sperm competitive advantage of a rare mitochondrial haplogroup linked to differential expression of mitochondrial oxidative phosphorylation genes
Maternal inheritance of mitochondria creates a sex-specific selective sieve through which mitochondrial mutations harmful to males but not females accumulate and contribute to sexual differences in longevity and disease susceptibility. Because eggs and sperm are under disruptive selection, sperm are predicted to be particularly vulnerable to the genetic load generated by maternal inheritance, yet evidence for mitochondrial involvement in male fertility is limited and controversial. Here, we exploit the coexistence of two divergent mitochondrial haplogroups (A and B2) in a Neotropical arachnid to investigate the role of mitochondria in sperm competition. DNA profiling demonstrated that B2-carrying males sired more than three times as many offspring in sperm competition experiments than A males, and this B2 competitive advantage cannot be explained by female mitochondrial haplogroup or male nuclear genetic background. RNA-Seq of testicular tissues implicates differential expression of mitochondrial oxidative phosphorylation (OXPHOS) genes in the B2 competitive advantage, including a 22-fold upregulation of <i>atp8</i> in B2 males. Previous comparative genomic analyses have revealed functionally significant amino acid substitutions in differentially expressed genes, indicating that the mitochondrial haplogroups differ not only in expression but also in DNA sequence and protein functioning. However, mitochondrial haplogroup had no effect on sperm number or sperm viability, and, when females were mated to a single male, neither male haplogroup, female haplogroup nor the interaction between male/female haplogroup significantly affected female reproductive success. Our findings therefore suggest that mitochondrial effects on male reproduction may often go undetected in noncompetitive contexts and may prove more important in nature than is currently appreciated.
Linked-read sequencing enables haplotype-resolved resequencing at population scale
The feasibility to sequence entire genomes of virtually any organism provides unprecedented insights into the evolutionary history of populations and species. Nevertheless, many population genomic inferences – including the quantification and dating of admixture, introgression and demographic events, and inference of selective sweeps – are still limited by the lack of high-quality haplotype information. The newest generation of sequencing technology now promises significant progress. To establish the feasibility of haplotype-resolved genome resequencing at population scale, we investigated properties of linked-read sequencing data of songbirds of the genus Oenanthe across a range of sequencing depths. Our results based on the comparison of downsampled (25x, 20x, 15x, 10x, 7x, and 5x) with high-coverage data (46-68x) of seven bird genomes mapped to a reference suggest that phasing contiguities and accuracies adequate for most population genomic analyses can be reached already with moderate sequencing effort. At 15x coverage, phased haplotypes span about 90% of the genome assembly, with 50 and 90 percent of phased sequences located in phase blocks longer than 1.25-4.6 Mb (N50) and 0.27-0.72 Mb (N90). Phasing accuracy reaches beyond 99% starting from 15x coverage. Higher coverages yielded higher contiguities (up to about 7 Mb/1Mb (N50/N90) at 25x coverage), but only marginally improved phasing accuracy. Phase block contiguity improved with input DNA molecule length; thus, higher-quality DNA may help keeping sequencing costs at bay. In conclusion, even for organisms with gigabase-sized genomes like birds, linked-read sequencing at moderate depth opens an affordable avenue towards haplotype-resolved genome resequencing at population scale.
Data from: Contrasting leaf trait responses of conifer and broadleaved seedlings to altered resource availability are linked to resource strategies
<p>(1) Understanding tree seedling responses to water, nutrient and light availability is crucial to precisely predict potential shifts in composition and structure of forest communities under future climatic conditions.</p> <p>(2) We exposed seedlings of widespread central European tree species with contrasting leaf habit, deciduous broadleaves (DB) and evergreen conifers (EC), to factorial combinations of manipulated precipitation (100% and 50% of ambient), shade (40% and 60% of full sunlight) and nutrient availability (low and high NPK), and measured specific leaf area, C/N ratio, soluble sugars, starch and non-structural carbohydrate concentration, and δ<sup>13</sup>C of the leaves.</p> <p>(3) We found contrasting effects of water and nutrient availability on foliar traits of the two species groups: EC exhibited higher tolerance to low resource availability but also less plasticity in foliar traits, which is congruent with a "slow" resource strategy. In contrast, foliage of DB reacted particularly to altered nutrient availability, corresponding to a "fast" resource strategy with high foliar plasticity and rapid adjustments to resource fluctuations, commonly adopted by species with high growth rates.</p> <p>(4) We conclude that DB will respond to environmental change with foliar acclimation, while EC will either tolerate, to some extent, or shift their distribution range in response to environmental change.</p>
Swilcan Bridge, St Andrews Links golf course
The Swilcan Bridge is a small stone bridge in St Andrews Links golf course, Scotland. The bridge spans the Swilcan Burn between the first and eighteenth fairways on the Old Course, and has become an important image in the sport of golf. The bridge itself is extremely small; at its farthest extent it measures about 30 feet long, eight feet wide and six feet tall, in the style of a simple Roman arch. Originally built at least 700 years ago to help shepherds get livestock across, it has the modern photographic advantage of great backdrops on three sides: the course's grand Royal and Ancient Clubhouse and Hamilton Grand on one, often a packed grandstand of enthusiasts on another, and rolling hills facing toward the North Sea, on the last. Source: Objaverse 1.0 / Sketchfab
Link Trainer - Flight Simulator 1930s
The term Link Trainer, also known as the "Blue box" and "Pilot Trainer"is commonly used to refer to a series of flight simulators produced between the early 1930s and early 1950s by Link Aviation Devices, founded and headed by Ed Link, based on technology he pioneered in 1929 at his family's business in Binghamton, New York. During World War II, they were used as a key pilot training aid by almost every combatant nation. This model has been created using the GeoCV scanner. Courtesy of the [Museum of Flight](http://museumofflight.org) in Seattle, WA USA. Source: Objaverse 1.0 / Sketchfab
Bronze Age House, Links of Noltland
Post-ex of Bronze age house, Structure 16 at the Links of Noltland, Westray, Orkney Islands. Source: Objaverse 1.0 / Sketchfab
Bronze Age House, Links of Noltland
Post Ex of Bronze Age house, Structure 17 at the Links of Noltland, Westray, Orkney Islands. Source: Objaverse 1.0 / Sketchfab
Source code and datasets used to link new waves of plague outbreaks in medieval Europe to climate fluctuations affecting the reservoirs of the disease in Asia.
<p>The zipfile contains the project directory which includes the source code and datasets used in the paper on <strong>Climate-driven introduction of the Black Death and successive plague reintroductions into Europe</strong>, as published in <em>Proceedings of the National Academy of Sciences</em> (PNAS). Access the paper at http://www.doi.org/pnas.1412887112</p> <p>If you are not familiar with Clojure, Leiningen, and its project directory format, see http://clojure.org/getting_started for one of the IDE's to run the clojure code in, and use http://leiningen.org/ as the project / dependency manager.</p>
Linked Data Quality Assessment for Datasets on the LOD Cloud
<p><strong>For more up to date quality metadata, please visit https://w3id.org/lodquator</strong></p> <p>This dataset is a collection of TRiG files with quality metadata for different datasets on the LOD cloud. Each dataset was assessed for</p> <ol> <li>The length of URIs</li> <li>Usage of RDF primitives</li> <li>Re-use of existing terms</li> <li>Usage of undefined terms</li> <li>Usage of blank nodes</li> <li>Indication for different serialisation formats</li> <li>Usage of multiple languages</li> </ol> <p>This data dump is part of the empirical study conducted for the paper "Are LOD Cloud Datasets Well Represented? A Data Representation Quality Survey."</p> <p>For more information visit http://jerdeb.github.io/lodqa</p>
DOI linked by Wikipedia and available in green Open Access
<p>List of 399684 digital object identifiers (185790 unique) linked from the pages of Wikipedia in all languages (the 140 most visited subdomains according to stats.wikimedia.org, one file for each) and available on DOAI.io as redirect to an URL other than dx.doi.org.</p> <p>Those DOIs represent a cross section of research publications which are significant to the larger community of citizens and are available to them thanks to the green Open Access repositories.</p> <p>The script used to produce the dataset is also attached.</p>
Sample video of Drosophila interaction. Linked to "Beckwith, Geissmann and Gilestro"
<ol> <li>2016-08-02_08-56-55_057c6ba04e534be486069c3db7b10827__1920x1080@25-interaction</li> <li>2016-08-02_08-56-55_058c6ba04e534be486069c3db7b10827__1920x1080@25-interaction</li> <li>2016-08-02_08-56-56_059c6ba04e534be486069c3db7b10827__1920x1080@25-interaction</li> <li>2016-08-02_08-56-57_060d6ba04e534be486069c3db7b10827__1920x1080@25-interaction</li> </ol> <p> </p> <p>1 -> MF interaction (both <em>D. melanogaster</em>)</p> <p>2-> MM interaction (both <em>D. melanogaster</em>)</p> <p>3-> M <em>ppk23</em><sup>-/-</sup> + F wildtype</p> <p><em>4-> </em>M <em>D.melanogaster</em> + F <em>D.simulans </em></p>
Modeling of the TFIIH complex using chemical cross-links and electron microscopy (EM) density maps
<p>TFIIH is essential for both RNA polymerase II transcription and DNA repair, and mutations in TFIIH can result in human disease. Here, we determine the molecular architecture of human and yeast TFIIH by an integrative approach using chemical crosslinking/mass spectrometry (CXMS) data, biochemical analyses, and previously published electron microscopy maps. We identified four new conserved "topological regions" that function as hubs for TFIIH assembly and more than 35 conserved topological features within TFIIH, illuminating a network of interactions involved in TFIIH assembly and regulation of its activities. We show that one of these conserved regions, the p62/Tfb1 Anchor region, directly interacts with the DNA helicase subunit XPD/Rad3 in native TFIIH and is required for the integrity and function of TFIIH. We also reveal the structural basis for defects in patients with xeroderma pigmentosum and trichothiodystrophy, with mutations found at the interface between the p62 Anchor region and the XPD subunit.</p> <p>For more information about how to reproduce this modeling, see https://salilab.org/tfiih or the README file.</p>
Biotea Linked Data for Open Access Full text PubMed Central
<p>this is the dataset from a-b</p>
Data From: PD-linked LRRK2 G2019S mutation impairs astrocyte morphology and synapse maintenance via ERM hyperphosphorylation
<p>Source data files for Wang et al 'PD-linked LRRK2 G2019S mutation impairs astrocyte morphology and synapse maintenance via ERM hyperphosphorylation'</p>
IPBES Invasive Alien Species Assessment in Linked Open Data format
<p>This dataset contains the Thematic Assessment Report on Invasive Alien Species and their Control of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services in linked open data format.</p> <p>The structure of the file follows the IPBES ontology version 06: <a href="https://github.com/IPBES-Data/IPBES_Ontology">https://github.com/IPBES-Data/IPBES_Ontology</a></p> <p>The report is published in 2023 and consists of 6 chapters and a Summary for Policy Makers. For more information about the report, see: <a href="https://www.ipbes.net/ias" rel="nofollow">https://www.ipbes.net/ias</a></p> <p>For any questions and enquiries, please contact the IPBES Data and Knowledge Unit <a href="mailto:aidin.niamir@senckenberg.de">aidin.niamir@senckenberg.de</a></p>
IPBES Values Assessment in Linked Open Data format
<p>This dataset contains the Methodological Assessment Report on the Diverse Values and Valuation of Nature of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services in linked open data format.</p> <p>The structure of the file follows the IPBES ontology version 06: <a href="https://github.com/IPBES-Data/IPBES_Ontology">https://github.com/IPBES-Data/IPBES_Ontology</a></p> <p>The report is published in 2022 and consists of 6 chapters and a Summary for Policy Makers. For more information about the report, see: <a href="https://www.ipbes.net/the-values-assessment">https://www.ipbes.net/the-values-assessment</a></p> <p>For any questions and enquiries, please contact the IPBES Data and Knowledge Unit <a href="mailto:aidin.niamir@senckenberg.de">aidin.niamir@senckenberg.de</a></p>
Datasets for the article "Emerging patterns of CO2:O2 dynamics in rivers and their link to ecosystem carbon processing "
<p>Datasets supporting the article "Emerging patterns of CO2:O2 dynamics in rivers and their link to ecosystem carbon processing". The datasets are analized using the acompanying repository in github (https://github.com/rocher-ros/O2_CO2_rivers).</p> <p> </p> <p>Currently the publication is under review, for further information and details on the analysis visit the github repository or the acompannying article. </p>
Data and code for the paper titled "Changing Northern Hemisphere Weather Linked to Warming Amplification in High Mountain Asia"
<p>This is the data and code for the paper titled "Changing Northern Hemisphere Weather Linked to Warming Amplification in High Mountain Asia", which has published in</p> <div> <div><em>Communications Earth & Environment, </em>DOI : 10.1038/s43247-025-02883-0.</div> </div>
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.