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1,298 results for “Archive”
Data from: Differentiation in neutral genes and a candidate gene in the pied flycatcher: using biological archives to track global climate change
Global climate change is one of the major driving forces for adaptive shifts in migration and breeding phenology and possibly impacts demographic changes if a species fails to adapt sufficiently. In Western Europe, pied flycatchers (Ficedula hypoleuca) have insufficiently adapted their breeding phenology to the ongoing advance of food peaks within their breeding area and consequently suffered local population declines. We address the question whether this population decline led to a loss of genetic variation, using two neutral marker sets (mitochondrial control region and microsatellites), and one potentially selectively non-neutral marker (avian Clock gene). We report temporal changes in genetic diversity in extant populations and biological archives over more than a century, using samples from sites differing in the extent of climate change. Comparing genetic differentiation over this period revealed that only the recent Dutch population, which underwent population declines, showed slightly lower genetic variation than the historic Dutch population. As that loss of variation was only moderate and not observed in all markers, current gene flow across Western and Central European populations might have compensated local loss of variation over the last decades. A comparison of genetic differentiation in neutral loci versus the Clock gene locus provided evidence for stabilizing selection. Furthermore, in all genetic markers, we found a greater genetic differentiation in space than in time. This pattern suggests that local adaptation or historic processes might have a stronger effect on the population structure and genetic variation in the pied flycatcher than recent global climate changes.
Data from: Changes in Eocene plant diversity and composition of the vegetation: the lacustrine archive of Messel (Germany)
Based on high resolution palynological analysis of 680 samples from a core, short-term changes in plant diversity and floristic composition within the Paleogene greenhouse have been detected in the lacustrine succession of a Lower to Middle Eocene maar lake at Messel (Federal State of Hesse, Germany). The microfloristic data show that taxonomic diversity increased rapidly within some decades during recolonization of a volcanically devastated area around the lake. With the establishment of a climax vegetation at the end of recolonization the maximum in palynological diversity was reached in the crater area. During the following 640 Kyr the composition of the palynospectrum changed only gradually. However, different richness and evenness estimations show that alpha and gamma diversity decreased up to 35% which can be related to the establishment of an equilibrium stage within the climax vegetation that led to the dominance of an assemblage of self-replacing species. Nevertheless, time series analysis of alpha diversity changes within the climax vegetation reveals that orbitally controlled climate change of Milankovitch and Sub-Milanovitch order influenced the diversity of the vegetation resulting in a rise of beta diversity. Based on the composition of the vegetation and comparison to modern analogues our analysis now proves that Eocene paratropical plant diversity increased during periods of slightly higher temperature and precipitation. Therefore, both composition and diversity of the vegetation was highly susceptible to minor-scale short-term changes in climate even during equable greenhouse conditions.
HERMETAGE ARCHIVE
www.hermetage.ru Source: Objaverse 1.0 / Sketchfab
FIGURE 38–39. Archive references. 38 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets
FIGURE 38–39. Archive references. 38, the citation and the illustration of Tinea mespilella Hübner, 1805 from Hübner, J. 1796–1838. Sammlung europäischer Schmetterlinge. Achte Horde. Tineae Die Schaben; nach der Natur geordnet, beschrieben und vorgestellt: pl. 39, fig. 272. 39a, the title page of the list of specimens bearing Haworth's labels in the Thomas Henry Allis collection. 39b, the list, indicating that the type specimen of P. trifasciella was examined by Mr. Raymond Uffen.
FIGURE 11 in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 11. Distribution of Pseudotomias species in Tanzania. Square: P. kisarawe n. sp. Circle: P. usambaricus n. sp.
FIGURE 10 in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 10. Morphological details of female Pseudotomias kisarawe n. sp. A. Lateral view on ovipositor B. Subgenital plate.
FIGURE 9 in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 9. Morphological details of male Pseudotomias kisarawe n. sp. A. Pronotum and head B. Semilateral view on abdominal apex C. Subgenital plate.
FIGURE 5 in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 5. Lateral view on ovipositor of Pseudotomias usambaricus n. sp. (A) and subgenital plate (B).
FIGURE 3 in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 3. Morphological details of male Pseudotomias usambaricus n. sp. A. Upper part of face showing expanded area formed by face closing gap between scapi of antennae; the fastigium verticis just protrudes above. B. Dorsal view on abdominal apex with undifferentiated 9th and 10th abdominal tergites and stout incurved cerci. C. Lateral view on abdominal apex. D. Subgenital plate.
FIGURE 4. Pseudotomias usambaricus n in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 4. Pseudotomias usambaricus n. sp. female. A. Resting posture with tegmina widely spread. B. Lateral view on head and pronotum.
FIGURE 1. Male Pseudotomias usambaricus n in The Eastern Arc Mountains and coastal forests of East Africa—an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae)
FIGURE 1. Male Pseudotomias usambaricus n. sp. caught in the Nilo forest reserve, East Usambara Mountains.
The dataset archives of SIDERITE (siderophore information database)
<p>The update of <a href="https://siderite.bdainformatics.org/">SIDERITE</a>.</p> <p>It covers all 918 known siderophores from 1635 records as of Jan 2025.</p> <p dir="auto"><strong>SIDERITE_records_20250131.xlsx</strong><br>contains 1635 siderophore records</p> <p dir="auto"><strong>SIDERITE_unique_structures_20250131.xlsx</strong><br>contains 918 unique siderophore structures</p> <p>The same siderophore structures can be found in different species, leading to multiple records. Therefore, the number of siderophore records can exceed the number of unique siderophore structures.</p> <p><strong>Non-natural_siderophore_records_20250131.xlsx</strong><br>As SIDERITE is a natural product database, it doesn’t include artificial siderophores, those synthesized by supplementing precursors, or variants produced by gene knock-out strains, though we record their names and references as supplements.</p> <p>If you find SIDERITE useful, please cite:</p> <p>Ruolin He, Shaohua Gu, Jiazheng Xu, et al. 2024. “ SIDERITE: Unveiling Hidden Siderophore Diversity in the Chemical Space Through Digital Exploration.” iMeta e192. <a href="https://doi.org/10.1002/imt2.192">https://doi.org/10.1002/imt2.192</a></p> <div> </div> <div><span><span><span>Ruolin</span> <span>He</span></span>, <span><span>Jiazheng</span> <span>Xu</span></span>, <span><span>Jiqi</span> <span>Shao</span></span>, et al.<span><span> 2025. " Tracing Siderophore Precursors to Primary Metabolism for Ecological Applications. " </span></span></span><span>bioRxiv.</span><span> <a href="https://doi.org/10.1101/2025.04.30.651379">https://doi.org/10.1101/2025.04.30.651379</a></span></div>
Data of Paper "Turning a Multilingual Historical Archive into an Information System through Post-OCR Correction and Content-Based Indexation"
<p>We evaluated our approach on a collection of 946 historical documents belonging to the Biblioteca Nacional de Catalunya (BNC), spanning from 1914 to 1951. Each document is the issue of a magazine, comprising different articles by different authors. This implies that, despite the thematic nature of magazines and specific issues, there is a certain degree of heterogeneity in each document. Magazines were selected based on their relevance w.r.t. art in general and, more specifically, early 20th century avant-garde movements (e.g., Dadaism, Cubism, etc.). For each document, we have the scanning of the original artifact and the plain raw text extracted through ABBYY FineReader OCR tool. To the best of our knowledge, this is the first Catalan-dominated OCR corpus ever released. </p>
SPA_modeling_paper_archive
<p>This archive contains data in support of the paper "The South Pole-Aitken basin: Constraints on impact excavation, melt, and ejecta" by Citron et al., submitted to GRL. </p><p>The archive consists of:</p><ul><li>ANEOS input files for the equations of state used in the numerical models.</li></ul><p> </p>
Emily Dickinson Archive TEI_files
<p>This dataset contains TEI files of Emily Dickinson poems. For more information on the files, see the Emily Dickinson Archive website https://www.edickinson.org/</p>
International Register of Heather Names archive
<p>This dataset contains the Heather Society’s Access 2000® database, used to produce the International Register of Heather Names (IRHN). The PDF scans of the two volumes in eight parts of the IRHN. We also add a CSV of the names combined from the European and Cape tables found in the Access database with World Flora Online identifiers appended. </p> <p>IRHN.accdb is the Heather Society Database.</p> <p>IRHN_WFO_Dec2023.csv are both IRHN tables in a single csv, with an additional two columns. The ID field is the original table ID field with the prefix the the original table name "Cape-" or "Euro-" added to make a unique ID. THE WFO_ID field contains the WFO identifier of the record this row linked to.</p> <p> </p>
Alkyl lipid distribution, elemental composition and compound-specific 14C isotope composition in marine and terrestrial sedimentary archives from sub-Antarctic South Georgia
<p>The dataset comprises elemental data, alkyl lipid data and radiocarbon (14C) data that was obtained on sediment samples from sub-Antarctic South Georgia. The sediments were collected from a range of different sites, including lakes, peat deposits, a marine inlet and a fjord during RV Polarstern expedition PS81 in 2013. More details on the study sites, sampling and data evaluation can be found in Berg et al. (submitted manuscript to JGR Biogeochemistry).</p>
Data archive for the peer-reviewed journal article "Major source categories of PM2.5 oxidative potential in wintertime Beijing and surroundings based on online dithiothreitol-based field measurements"
<p>This data archive accompanying the article "Major source categories of PM2.5 oxidative potential in wintertime Beijing and surroundings based on online dithiothreitol-based field measurements", which was accepted in April 2024 in the peer-reviewed journal <strong><em>Science of the Total Environment</em></strong>. This data archive contains the processed OPvDTT measurements, chemical speciation of PM2.5, and source contribution used in the manuscript.</p>
Iron cuticulosome data archive
<p>The repository contains the raw data from Quantum magnetic imaging of iron organelles within the pigeon cochlea published in PNAS 2021</p>
Predictive utility of task-related functional connectivity vs. voxel activation - Data and code archive
<p>Functional connectivity, both in resting state and task performance, has steadily increased its share of neuroimaging research effort in the last 1.5 decades. In the current study, we investigated the predictive utility regarding behavioral performance and task information for 240 participants, aged 20-77, for both voxel activation and functional connectivity in 12 cognitive tasks, belonging to 4 cognitive reference domains (Episodic Memory, Fluid Reasoning, Perceptual Speed, and Vocabulary). We also added a model only comprising brain-structure information not specifically acquired during performance of a cognitive task. We used a simple brain-behavioral prediction technique based on Principal Component Analysis (PCA) and regression and studied the utility of both modalities in quasi out-of-sample predictions, using split-sample simulations (=5-fold Monte Carlo cross validation) with 1,000 iterations for which a regression model predicting a cognitive outcome was estimated in a training sample, with a subsequent assessment of prediction success in a non-overlapping test sample. The sample assignments were identical for functional connectivity, voxel activation, and brain structure, enabling apples-to-apples comparisons of predictive utility. All 3 models that were investigated included the demographic covariates age, gender, and years of education. A minimal reference model using simple linear regression with just these 3 covariates was included for comparison as well and was evaluated with the same resampling scheme as described above. Results of the comparison between voxel activation and functional connectivity were mixed and showed some dependency on cognitive outcome; however, mean differences in predictive utility between voxel activation and functional connectivity were rather small in terms of within-modality variability or predictive success. More notably, only in the case of Fluid Reasoning did concurrent functional neuroimaging provided compelling about cognitive performance beyond structural brain imaging or the minimal reference model.</p>
ScienceDex guides
Understand access before you commit
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.