Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
9,113
datasets available to search
ShareScore release 0.9.0
Dataset results
9,113 results for “Sampling”
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2000, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2001, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2002, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2003, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2004, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2005, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 2006, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Bacterial Production Data for lakes and lake inlets/outlets samples collected summer 1996, Arctic LTER, Toolik Research Station, Alaska.
Yearly file containing information on bacterial productivity. Samples were collected at various sites near Toolik Research Station (68 38'N, 149 36'W). Sample site descriptors include an assigned number (sortchem), site, date, time and depth.
Soil nitrogen and carbon from organic and mineral soil of 32 mature black spruce sites across interior Alaska (Sampled 2001)
Soil nitrogen and carbon was collected at 33 sites as part of a bigger study looking at the structure and function of black spruce stands in interior Alaska. These variables can be compared to any of the environmental site descriptions, GPS coordinates, soil characteristics, physical site characteristics, stand and structural characteristics, active layer, collected in the summers of 2000, 2001 for these sites
Spatial patterns of understory vegetation and soil in an Alaskan upland boreal forest fire chronosequence. Three sites located in Delta Junction Alaska. Soil sampled during summer 2007
In this study we used geostatistics to characterize the spatial heterogeneity of soil carbon and nitrogen pools, microbial respiration, microbial biomass, nitrogen mineralization, soil moisture, soil pH, depth of organic horizon and forest floor covers and understory vegetation abundances in three sites (1999, 1987 and 1920 wildfires) of a boreal forest chronosequence of Interior Alaska (near Delta Junction). Soil sampling and vegetation measurements occured during summer 2007.
Murphy Dome: Covariates measured on the sampling units of moss (Hylocomium splendens) from a moss transplant and leaf litter manipulation experiment in three pairs of adjacent black spruce and birchs stands. This data is associated to the file MD_MossBiomass_2013-2015.xlsx
This data contains sampling unit level variables associated with the moss measurements from MD_MossBiomass_2013-2015.txt. It include the percent cover of leaf litter through time, fungus cover in 2015, moisture in 2015, and percent openness of the tree canopy measured in July 2014.
Measurement of Plant Traits on Hylocomium splendens Samples Collected at Sites within the Bonanza Creek LTER Regional Site Network in Interior Alaska, 2019
This dataset contains measurements of plant traits on Hylocomium splendens species collected at a subset of sites from the Regional Site Network (n = 26). The two species, Hylocomium splendens and Vaccinium uliginosum, are the two most ubiquitous nonvascular and vascular species at these sites. The traits measured on these species relate to the fire ecology of each species. Traits measured for Hylocomium splendens include: length, width, aspect ratio (width/length), specific leaf area (SLA) and moisture content % at maximum water retention capacity. There is a corresponding dataset with trait data for Vaccinium uliginosum.
Measurement of Plant Traits on Vaccinium uliginosum Samples Collected at Sites within the Bonanza Creek LTER Regional Site Network in Interior Alaska, 2019
This dataset contains measurements of plant traits on Vaccinium uliginosum species collected at a subset of sites from the Regional Site Network (n = 26). The two species, Hylocomium splendens and Vaccinium uliginosum, are the two most ubiquitous nonvascular and vascular species at these sites. The traits measured on these species relate to the fire ecology of each species. Traits measured for Vaccinium uliginosum include: rhizome depth, number of rhizomes, plant height, moisture content % of aboveground tissues, aboveground tissue ratios and dry mass of leaves. There is a corresponding dataset with trait data for Hylocomium splendens.
Annual aspen growth (basal area increment; BAI) of 84 aspen that were alive and 76 that were dead when sampled in 2016 from 22 plots (eight sites) that are a part of the Cooperative Alaska Forest Inventory (CAFI)
This dataset contains basal area increment (BAI) chronologies of 84 aspen the were alive and 76 that were dead in 2016. Live trees were cored and dead trees felled in 2016 across 22 plots (eight sites) that are a part of the Cooperative Alaska Forest Inventory (CAFI). Chronologies of BAI extend as far back as 1901 and up to 2015.
Tree characteristics of 84 aspen that were alive and 76 that were dead when sampled in 2016 from 22 plots (8 sites) that are a part of the Cooperative Alaska Forest Inventory (CAFI)
This dataset contains diameter at breast height (DBH) in 2016 and 1997, canopy position in 2016, last year of full growth, year of death, year established, age at last year of full growth, and age at year of death of 84 aspen that were alive and 76 that were dead in 2016 from 22 plots (8 sites) that are a part of the Cooperative Alaska Forest Inventory (CAFI).
Eight Mile Lake Research Watershed, Thaw Gradient: Geochemistry of soil pore waters sampled in May 2018 (0 - 20 cm depth) and August 2019 (0-120 cm depth) at Gradient site, 2018-2019
In this larger study, we are asking the question: Is old carbon that comprises the bulk of the soil organic matter pool released in response to thawing of permafrost? We are answering this question by using a combination of field and laboratory experiments to measure radiocarbon isotope ratios in soil organic matter, soil respiration, and dissolved organic carbon, in tundra ecosystems. The objective of these proposed measurements is to develop a mechanistic understanding of the SOM sources contributing to C losses following permafrost thawing. We are making these measurements at an established tundra field site near Healy, Alaska in the foothills of the Alaska Range. Field measurements center on a natural experiment where permafrost has been observed to warm and thaw over the past several decades. This area represents a gradient of sites each with a different degree of change due to permafrost thawing. As such, this area is unique for addressing questions at the time and spatial scales relevant for change in arctic ecosystems. Analysing the geochemistry of soil pore waters at Gradient site complements the overarching aim of this study. The dissolved organic carbon and mineral elements are determined in soil pore waters from sites of minimum, moderate and extensive permafrost degradation during the spring thaw (0-20 cm depth) in May 2018 and during late summer (0-120 cm depth) in August 2019. Soil pore waters were collected from sites approximately 15 m uphill of the highly monitored Gradient sites. The geochemical data was used to assess the mineral element-organic carbon associations in soil pore waters between contrasting sites of permafrost degradation.
High Performance Liquid Chromatography (HPLC) pigment analysis from rosette bottle samples at various depths from CalCOFI-CCE Augmented cruises in the California Current System, 2002 to 2023 (ongoing).
High Performance Liquid Chromatography (HPLC) samples are collected from rosette bottles (from three to eight different depths in the photic zone) at stations located within the CCE region on CalCOFI cruises (since 2002, ongoing). The HPLC method is used to measure concentrations of chlorophylls and carotenoids in samples of particulate matter, which includes filtering and freezing the filter while at sea. The taxon-specific phyto-pigments are extracted back onshore. Concentrations of chlorophyll a are used as a proxy for phytoplankton biomass and concentrations of other taxon-specific pigments are used to determine contributions of phytoplankton taxa to total phytoplankton biomass.
The co-occurrence of MHW characteristics and in situ sampling from CCE-CalCOFI Augmented Cruises in the California Current System,1983~2021
The intensity and duration of each MHW event and the anomalies of in situ nitracline and plankton abundance in the Southern California Current System (the region south of line 76.7; 29-36°N, 117-125°W) were calculated. In situ data are available from ~quarterly CalCOFI cruises. Data collected from 1983 onward were utilized, including nitrate, picoplankton and bacteria abundance, size-fractionated Chla concentration, vertically-integrated Chla, vertically-integrated primary production, phytoplankton taxon-specific pigments from High-Performance Liquid-Chromatography (HPLC) analysis, zooplankton displacement volume (ZDV), zooplankton taxon-specific abundance, and fish egg and larvae abundance.
Core Old Field Grasshopper Sampling:Successional Dynamics on a Resampled Chronosequence
The purpose of this observational study is to describe the dynamics of ecosystem succession. The change in the number, type, and amount of plant and grazing animal species is monitored in more than 20 fields. These fields were previously cultivated, but then abandoned from agriculture at various times in the past. The fields were left undisturbed for plants to develop from seeds within the soil or brought into the fields by wind or animals. Permanent transects have been established in these abandoned fields for purposes of sampling in a consistent location from year to year. Permanent plots along these transects have been used to sample soil nutrients, (in particular, nitrogen) abundance of vegetation, species composition and herbivore populations. The sampling occurs approximately every 6 years. In the initial survey, 100 quadrats of size 1 by 0.5 m were sampled per field in 23 different fields. Abandoned fields included in E014 are 4, 5, 10, 21, 24, 26, 27, 28, 32, 35, 39, 40, 41, 44, 45, 47, 53, 70, 72, 76, 77. Fields 22(B), 29(A), and 69(C) were originally included in E014 but used for other purposes shortly after the start of the study. This experiment was established in 1983 and 1989 by principal investigators Johannes Knops and David Tilman. Past work at CDR and elsewhere has demonstrated an overriding influence of fire frequency in maintaining prairie openings and oak savanna at the prairie-forest border. Fire regimes harm some types of species while favoring others and drive light and nutrient dynamics, which in turn drive community functional attributes and diversity levels. Ultimately, fire frequency interacts with climate, N deposition, land use, and biotic invasion to determine the outcomes of tree-grass interactions and the dynamics of vegetation at ecotones such as the prairie-forest border in Minnesota. In 2006 each field was divided in half, and one half randomly chosen for periodic prescribed burning (a fire every other year). We anticipate that th
Supplemental Old Field Grasshopper Sampling:Successional Dynamics on a Resampled Chronosequence
The purpose of this observational study is to describe the dynamics of ecosystem succession. The change in the number, type, and amount of plant and grazing animal species is monitored in more than 20 fields. These fields were previously cultivated, but then abandoned from agriculture at various times in the past. The fields were left undisturbed for plants to develop from seeds within the soil or brought into the fields by wind or animals. Permanent transects have been established in these abandoned fields for purposes of sampling in a consistent location from year to year. Permanent plots along these transects have been used to sample soil nutrients, (in particular, nitrogen) abundance of vegetation, species composition and herbivore populations. The sampling occurs approximately every 6 years. In the initial survey, 100 quadrats of size 1 by 0.5 m were sampled per field in 23 different fields. Abandoned fields included in E014 are 4, 5, 10, 21, 24, 26, 27, 28, 32, 35, 39, 40, 41, 44, 45, 47, 53, 70, 72, 76, 77. Fields 22(B), 29(A), and 69(C) were originally included in E014 but used for other purposes shortly after the start of the study. This experiment was established in 1983 and 1989 by principal investigators Johannes Knops and David Tilman. Past work at CDR and elsewhere has demonstrated an overriding influence of fire frequency in maintaining prairie openings and oak savanna at the prairie-forest border. Fire regimes harm some types of species while favoring others and drive light and nutrient dynamics, which in turn drive community functional attributes and diversity levels. Ultimately, fire frequency interacts with climate, N deposition, land use, and biotic invasion to determine the outcomes of tree-grass interactions and the dynamics of vegetation at ecotones such as the prairie-forest border in Minnesota. In 2006 each field was divided in half, and one half randomly chosen for periodic prescribed burning (a fire every other year). We anticipate that th
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.