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417 results for “Data Persistence”
Data from: When the "selfish herd" becomes the "frozen herd": spatial dynamics and population persistence in a colonial seabird
Aggregations are common in ecological systems at a range of scales and may be driven by exogenous constraints such as environmental heterogeneity and resource availability or by 'self-organizing' interactions among individuals. One mechanism leading to self-organized animal aggregations is captured by Hamilton's 'selfish herd' hypothesis, which suggests that aggregations may be driven by an individual's effort to minimize their risk of predation by surrounding themselves with conspecifics. We demonstrate that aggregations observed in Adélie penguin (Pygoscelis adeliae) colonies are a convolution of both self-organized dynamics and external forcing arising from landscape terrain. In fluid, highly mobile aggregations, individuals are constantly moving in response to changing environmental conditions, the locations of predators, or the movements of conspecifics. However, when the ability to rearrange is limited and spatial reconfiguration occurs on slower time scales than changes in population size, systems may become trapped in sub-optimal arrangements. We use simulated annealing to demonstrate that Adélie penguin colonies are frozen in sub-optimal spatial arrangements, and employ an individual-based modelling approach to demonstrate that this sub-optimal spatial configuration is driven by a convolution of nest site fidelity and stochastic events at the level of individual nests. The resulting spatial dynamics are responsible for a hysteretic response to long-term changes in abundance. We find that declining abundance leads to fragmentation even in a homogeneous environment, which has population-level consequences for reproductive success because predation is biased towards colony edges. Strong edge effects from heterogeneous predation coupled with fragmentation in response to population declines creates a positive feedback cycle that can accelerate population decline. This work provides a mechanistic understanding of complex spatial structuring in penguin colonies, provides a link between current spatial patterning and past dynamics, and suggests the possibility of critical collapse in seabird populations.
Raw data to: "Persistent RNA virus infection is short-lived at the single cell level but leaves transcriptomic footprints"
<p>Raw data underlying the publication by Reuther and Martin et al. entitled "Persistent RNA virus infection is short-lived at the single cell level but leaves transcriptomic footprints"</p>
Data for: A persistent influence of supernovae on biodiversity over the Phanerozoic
<p>Paper abstract: It is an open question what has constrained macro-evolutionary changes of marine animal diversity on the time scale of the Phanerozoic. Here we will show that supernovae appear to have significantly influenced the biodiversity of life. After normalizing diversity curves of major animal marine genera by the changes in the area of shallow marine margins, a close correlation between supernovae frequency and biodiversity is obtained. The interpretation is that supernovae influence Earth's climate, which controls the ocean and atmospheric circulation of nutrients. With this, supernovae influence ocean bioproductivity and are speculated to affect genera-level diversity. The implication is a surprisingly influential role of stellar processes on evolution. </p> <p>Data provided: Here is the R-code to extract data from "The Paleobiology Database" (<a href="https://paleobiodb.org">https://paleobiodb.org</a>) and calculate genius-level diversity curves used in the study. In addition, are data files on temporal changes in the areas of shallow marine margins used to normalize the genus-level diversity curves.</p>
Data from: Climate change and population persistence in a hibernating marsupial
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Data from: Multimodal in situ datalogging quantifies inter-individual variation in thermal experience and persistent origin effects on gaping behavior among intertidal mussels (Mytilus californianus)
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Data for: A persistent influence of supernovae on biodiversity over the Phanerozoic
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Data from: Large carnivores persisting in a human-dominated landscape: Suitable habitat and connectivity for Asiatic black bears in China
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R scripts, input and output data for: Season of death, pathogen persistence and wildlife behaviour alter number of anthrax secondary infections from environmental reservoirs
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Data from: A shift to metapopulation genetic management for persistence of a species threatened by fragmentation: the case of an endangered Australian freshwater fish
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Data for: Coordination and persistence of aggressive visual communication in Siamese fighting fish
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Data from: When the "selfish herd" becomes the "frozen herd": spatial dynamics and population persistence in a colonial seabird
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Data from: Maintaining local adaptation is key for evolutionary rescue and long-term persistence of populations experiencing habitat loss and a changing environment
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Data from: Long-term persistence of monotypic dengue transmission in small size isolated populations, French Polynesia, 1978-2014
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Data from: Persistence of the ecological niche in pond damselflies underlies a stable adaptive zone despite varying selection
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Data from: Observation of persister cell histories reveals diverse modes of survival in antibiotic persistence
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Data from: Habitat restorations in an urban landscape rapidly assemble diverse pollinator communities that persist
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Data from: PM2.5 exposure disparities persist despite strict vehicle emissions controls in California
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Data from: Efficient pollination stinks: Corpse flowers use floral trapping and persistent emissions
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Data and code for: Multiple genetic impacts of immigration interact to shape local population persistence versus extinction
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Persistence and interoperability in FAIR research data management - 1st FAIRsFAIR webinar
<p><strong>Webinar page: </strong>https://zenodo.org/record/3726149#.XnpRJXJ7k1k</p> <p>The main principles of FAIR data (findable, accessible, interoperable and reusable) have received wide acceptance in scientific data management circles. The work of further defining these principles and applying them in day-to-day knowledge sharing is ongoing.</p> <p>The FAIRsFAIR working group "<a href="https://www.fairsfair.eu/fair-practices-semantics-interoperability-and-services">FAIR practices: semantics, interoperability and services</a>" recently published the <a href="http://zenodo.org/record/3557381#.XiVxKSN7nIV">first iteration</a> of three annual reports on the state of FAIR in European scientific data. Based on studies of public information, especially EOSC infrastructure efforts, and on limited surveying and interviews, the report reviews and documents commonalities between infrastructures and obstacles to semantic interoperability - that is the use of metadata and persistent identifiers to enhance dissemination across infrastructures.</p>
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.