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498 results for “Columbia”
Forestry influences on salmonid habitat in the North Thompson River Watershed, British Columbia
<p>Freshwater ecosystems that support juvenile salmonids can be degraded by human pressures such as forestry. Forestry activities can alter water temperatures and the delivery and storage of water, nutrients, wood, and sediment in streams, resulting in changes to the habitat, growth, and survival of juvenile salmon. Previous research on forestry impacts on habitat has focused on small, intensively monitored coastal systems. Here we examined forestry impacts, watershed characteristics, physical habitat, and stream temperature for 28 midsized tributaries of the North Thompson River to examine relationships between forestry and juvenile coho stream habitat in interior watersheds. Forest harvest had a positive correlation to maximum summer stream temperature. Streams with 35% of the riparian area harvested since 1970 had maximum summer temperatures 3.7°C higher on average than those with 5% harvested. Stream gradient explained most of the variation in physical habitat and had negative correlations to pool cover, pool depth, and fine sediment cover. Taken together, these results indicate that watershed characteristics drive physical habitat, but forestry harvest can be a primary driver of water temperatures.</p>
Data from: Stream thermalscape scenarios for British Columbia, Canada
<p class="Abstract"><span>Water temperature is a key feature of freshwater ecosystems but comprehensive datasets are severely lacking, a limiting factor in research and management of freshwater species and habitats. An existing statistical stream temperature model developed for British Columbia (BC), Canada, was refit to predict August mean stream temperatures, a common index of stream thermal regime also used in thermalscapes developed for the western United States (US). Thermalscapes of predicted August mean stream temperature were produced for 680,000 km of stream network at approximately 400 m intervals. Temperature predictions were averaged for 20-year periods from 1981–2100 to produce 86 scenarios: one for each historical period (i.e., 1981–2000, 2001–2020), and 21 for each future period (i.e., six global climate models and an ensemble average under three representative concentration pathways). </span><span class="MsoCommentReference"><span>T</span></span><span>he final model performance was consistent with other published regional-scale statistical models (R<sup>2</sup> = 0.79, RMSE = 1.53°C, MAE = 1.18°C), performing well given the relative paucity of data, large geographic extent, and range of climatic and physiographic conditions. Model results suggested an average increase of August mean stream temperature of 2.9 ± 1.0°C (RCP 4.5 ensemble mean ± SD) by end of century, with significant heterogeneity in predicted temperatures and warming rates across the province. Compared to stream temperature predictions from the western US, the predictions for BC showed good agreement at cross-border streams (Pearson's <em>r</em> = 0.91), suggesting the possible integration of both products for a thermalscape covering much of western North America. These stream thermalscapes for BC address a major data deficiency in freshwater ecosystems and have potential applications to stream ecology, species distribution modelling, and evaluation of climate change impacts. </span></p>
Dataset for manuscript "Contributions of Atmospheric Rivers to the Hydroclimatology of British Columbia's Nechako River Basin"
<p>This dataset is the foundation of the findings presented in the "Contributions of Atmospheric Rivers to the Hydroclimatology of British Columbia's Nechako River Basin".</p>
COLUMBIA-1: Novel Oncology Therapies in Combination With Chemotherapy and Bevacizumab as First- Line Therapy in MSS-CRC
ClinicalTrials.gov study NCT04068610. IPD Sharing: YES. Countries: 5. Publications: 1.
Community-based Treatment of Chronic Hepatitis C Monoinfection and Coinfection With HIV in the District of Columbia
ClinicalTrials.gov study NCT02339038. IPD Sharing: NO. Countries: 1. Publications: 4.
Habitat Suitability Analysis of Larval Pacific Lamprey Habitat in the Columbia River Estuary
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Value of information (VOI) for shellfish aquaculture in British Columbia
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Holocene earthquake rupture of the XEOLXELEK–Elk Lake fault in the Greater Victoria area, British Columbia, Canada
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Data from: Stream thermalscape scenarios for British Columbia, Canada
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Columbia Suicide Severity Rating Scale Screen scores in adults with Chiari malformation Type 1
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Data from: The Collins’ monster, a spinous suspension-feeding lobopodian from the Cambrian Burgess Shale of British Columbia
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Forestry influences on salmonid habitat in the North Thompson River Watershed, British Columbia
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Data From: Parentage‐based tagging combined with genetic stock identification is a cost‐effective and viable replacement for coded‐wire tagging in large‐scale assessments of marine Chinook salmon fisheries in British Columbia, Canada
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Counts of shorebirds and environmental correlates at Roberts Bank, British Columbia (1991 to 2019)
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Data from: Modulation of deformation by magmatic tempo, Coast Mountains Batholith, British Columbia, Canada
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Aerial photos and colony counts of nesting colonial waterbirds in the Columbia River Basin, 2024
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Genotype and phenotype data for Columbia River steelhead.
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Data from: Coleoptera associated with intermittent streams and their riparian zones in south coastal British Columbia
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Data from: Overlap of spatial and temporal spawning distributions of spring and summer Chinook Salmon results in hybridization in the upper Columbia River
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Factors affecting the survival of Chinook salmon (Oncorhynchus tshawytscha) embryos in upper and middle Columbia River watersheds, Washington State, USA
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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.