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5 results for “sediment regime”
Data from: Erosion regime controls sediment environmental DNA-based community reconstruction
<p><span>Analysis of environmental DNA detected in lake sediments shows promise to become a great paleoecological technique that can provide detailed information about organism communities living in past environments. However, when interpreting sedimentary environmental DNA records, it is of crucial importance to separate ecosystem responses to large-scale environmental change from 'noise' caused by changes in sediment provenance or potential post-depositional DNA mobility. In this study, we show that plant and mammalian communities reconstructed from sediments are strongly affected by sediment provenance, but unaffected by vertical mobility of DNA after sediment deposition. We observe that DNA from aquatic plants was abundant in background sediment, while embedded detrital event layers (sediment deposited under erosion events) primarily contained terrestrial plants; hence, vertical mobility of aquatic plant DNA across sediment layers was negligible within our studied lakes. About 33% of the identified terrestrial plant genera were only found in detrital sediment suggesting that sediment origin had a strong impact on the reconstructed plant community. Similarly, DNA of some mammalian taxa (<em>Capra hircus</em>, <em>Ursus arctos</em>, <em>Lepus</em>, <em>Felis</em>) were only or preferentially found in detrital event layers. Temporal changes across the Holocene were the main drivers of change for reconstructed plant communities, but sediment type was the second most important factor of variance. Our results highlight that erosion and sediment provenance need to be considered when reconstructing past mammalian and plant communities using environmental DNA from lake sediments.</span></p>
Data from: Erosion regime controls sediment environmental DNA-based community reconstruction
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The response of nitrogen transformation to hydrological regime at sediment-water interface of seasonal lakes in floodplain: Insights from the Three Gorges Dam-Poyang Lake system
<p><span>This study establishes a coupled model integrating hydrodynamics and nitrogen transformation to elucidate the impacts of the hydrological regime of the Yangtze River after the operation of Three Gorges Dam.</span></p>
From soil to sediment: Bedform migration shapes microbial communities from eroding bank soil during terrestrial-aquatic regime shift [dataset]
<p>This dataset contains raw data of metabolism measurements, microbial abundance, and nutrients that were assessed for the research paper entitled "From soil to sediment: Bedform migration shapes microbial communities from eroding bank soil during terrestrial-aquatic regime shift," which has been submitted to the Journal of Geophysics: Biogeosciences on October 19, 2024. Please note that raw sequencing data were already submitted to the NCBI library and are accessible via https://www.ncbi.nlm.nih.gov./sra/PRJNA1154565.</p> <p>The excel sheet (.xlsx) contains all relevant parameters that were used to detect the influence of environmental parameters on the microbial community structure, e.g. bacterial, fungal and algal abundance, nutrient concentrations, and final NCP and CR rates. The .zip archive contains all raw metabolism measurements during our experimental duration.</p>
Chapter 3. Contrasting methane, sulfide, and nitrogen loading regimes in bioreactors shape microbial communities originating from methane-rich coastal sediment of the Stockholm Archipelago
<p>Supplementary Tables 1 to 7.</p> <p> </p>
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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.