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.
261
datasets available to search
ShareScore release 0.9.0
Dataset results
261 results for “Mississippi”
Suspended particle and floc sizes in the lower most reaches of the Mississippi River during summer 2020 and winter 2021
<p>Data associated with the paper: Osborn, R., Dunne, K. B. J., Ashley, T., Nittrouer, J. A., & Strom, K. (2023). The flocculation state of mud in the lowermost freshwater reaches of the Mississippi River: Spatial distribution of sizes, seasonal changes, and their impact on vertical concentration profiles. <em>Journal of Geophysical Research: Earth Surface</em>, 128, e2022JF006975. <a href="https://doi. org/10.1029/2022JF006975">https://doi. org/10.1029/2022JF006975</a></p>
Subsurface redox interactions regulate ebullitive methane flux in heterogeneous Mississippi River deltaic wetland
<p>This dataset is model outputs archive from a model study about 'Subsurface redox interactions regulate ebullitive methane flux in heterogeneous Mississippi River deltaic wetland' (manuscript is Under Review). Plotting scripts are also included in this data file. There are four model results. 'Ebull' model output are ebullition flux, 'Jswi' model output are diffusion flux across soil-water interface, and 'Methane' files are porewater concentration results in each soil layers, and 'LtranR' model outputs for redox species exchange rates across different soil layers. The model source codes can be found at <a href="https://zenodo.org/record/8084441">https://zenodo.org/record/8084441</a> and <a href="https://zenodo.org/record/8087566">https://zenodo.org/record/8087566</a>.</p>
A new, narrowly endemic species of swamp-dwelling dusky salamander (Plethodontidae: Desmognathus) from the Gulf Coastal Plain of Mississippi and Alabama
Open the record for dataset details and reuse information.
Low levels of hybridization between domestic and wild Mallards wintering in the Lower Mississippi Flyway
Open the record for dataset details and reuse information.
Data from: Mowing effects on woody stem density and woody and herbaceous vegetation heights along Mississippi highway right-of-ways
Open the record for dataset details and reuse information.
Data from: Evaluation of mowing frequency on right-of-way plant communities in Mississippi
Open the record for dataset details and reuse information.
Sea turtle relative abundance in nearshore waters adjacent to the Mississippi River delta, Gulf of Mexico, United States
Open the record for dataset details and reuse information.
Burrowing crab effects across a tidal marsh successional chronosequence located along Mississippi sound
Open the record for dataset details and reuse information.
Long-term minnow community data from the Bayou Pierre, Mississippi
Open the record for dataset details and reuse information.
Morphometrics of mallards in the Lower Mississippi Alluvial Valley and associated climate variables from 1979-2021
Open the record for dataset details and reuse information.
Tallahatchie Experimental Forest site, station Mississippi Division 2, North Central, study of Palmer Drought Severity Index in units of dimensionless on a monthly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Tallahatchie Experimental Forest (TAL) contains Palmer Drought Severity Index measurements in dimensionless units and were aggregated to a monthly timescale.
Tallahatchie Experimental Forest site, station Mississippi Division 2, North Central, study of Palmer Drought Severity Index in units of dimensionless on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Tallahatchie Experimental Forest (TAL) contains Palmer Drought Severity Index measurements in dimensionless units and were aggregated to a yearly timescale.
Harrison Experimental Forest site, station Mississippi Division 10, Coastal, study of Palmer Drought Severity Index in units of dimensionless on a monthly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Harrison Experimental Forest (HAR) contains Palmer Drought Severity Index measurements in dimensionless units and were aggregated to a monthly timescale.
Harrison Experimental Forest site, station Mississippi Division 10, Coastal, study of Palmer Drought Severity Index in units of dimensionless on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Harrison Experimental Forest (HAR) contains Palmer Drought Severity Index measurements in dimensionless units and were aggregated to a yearly timescale.
Mound Stage Data for mounds in Alabama, Georgia, Mississippi, and Tennessee
These data provide mound counts, listing of stages, and associated time periods for Precolumbian Native American earthen mound sites in four states in the southeastern United States. Each row represents a single mound. Official State Site Numbers are provided with each row to link the data back to state archaeological site file data. Coordinate data are not available as prescribed by law. Coordinate data should be available from state archaeological site file offices, but only to those who qualify as credentialed archaeologists for each state.
Westward range expansion from middle latitudes explains the Mississippi River discontinuity in a forest herb of eastern North America
<p>It is often expected that temperate plants have expanded their geographic ranges northward from primarily southern refugia. Evidence for this hypothesis is mixed in eastern North American species, and there is increasing support for colonization from middle latitudes. We studied genome-wide patterns of variation in RADseq loci to test hypotheses concerning range expansion in a North American forest herb (<i>Campanula americana</i>). First, spatial patterns of genetic differentiation were determined. Then phylogenetic relationships and divergence times were estimated. Spatial signatures of genetic drift were also studied to identify the directionality of recent range expansion and its geographic origins. Finally, spatially explicit scenarios for the spread of plants across the landscape were compared, using variation in the population mutation parameter and Tajima's D. We found strong longitudinal subdivision, with populations clustering into groups west and east of the Mississippi River. While the southeastern region was likely part of a diverse Pleistocene refugium, there is little evidence that range expansion involved founders from these southern locales. Instead, declines in genetic diversity and the loss of rare alleles support a westward colonization wave from a middle latitude refugium near the southern Appalachian Mountains, with subsequent expansion from a Pleistocene staging ground in the Mississippi River Valley (0.51 - 1.27 Mya). These analyses implicate stepping stone colonization from middle latitudes as an important mechanism of species range expansion in eastern North America. This study further demonstrates the utility of population genetics as a tool to infer the routes traveled by organisms during geographic range expansion.</p>
Regional replication of landscape genetics analyses of the Mississippi slimy salamander, Plethodon mississippi
<p>Context</p> <p>Landscape genetics can identify habitat features that facilitate or resist gene flow, providing a framework for anticipating the impacts of land use changes on dispersal of individuals. To inform management, a better understanding of how inferences derived from one study region are applicable to other regions is needed.</p> <p>Objectives</p> <p>We investigated the manner in which five landscape variables correlated with gene flow among Plethodon mississippi populations in two study regions. We compared order of importance, direction (facilitation vs. resistance of gene flow) and scale of effect, and functional relationships of variables within each study area.</p> <p>Methods</p> <p>In forests in Mississippi and Alabama, USA, we tested individual-based genetic distances derived from microsatellite genotypes against effective distances caused by agriculture, hardwoods, pine, manmade structures, and wetlands that were optimized for both scale and transformation using maximum likelihood population effects modeling.</p> <p>Results</p> <p>Of the landscape variables, agriculture and wetlands ranked at the top of both study areas' models. In both forest regions, agriculture was consistently associated with resistance, whereas pine was inferred to facilitate gene flow. However, we found region-specific differences in effects of wetlands, hardwoods, and manmade structures. Configuration of the latter landscape variables differed between forest regions, which may explain the contrasting outcomes.</p> <p>Conclusions</p> <p>Our results underscore the value of metareplication in revealing which components of landscape genetics models may be consistent across different portions of a species' range, and those that have context-dependent impacts on gene flow. We also highlight the need to consider habitat configuration when interpreting the results of landscape genetics analyses.</p>
Day 14: Crossing the Mississippi Headwaters
This is where it begins: the headwaters of the mighty Mississippi River, one of the biggest in North America. The river's humble beginnings are at Lake Itasca in Minnesota. Come over here and literally walk across the Mississippi! 📍 [Itasca State Park, Park Rapids, MN](https://scaniver.se/L47.23980,-95.20768) Shot with an iPhone 12 using Scaniverse. Part of #1scanaday, in which I share 3D scans Source: Objaverse 1.0 / Sketchfab
FIGURE 5 in Ampelisca mississippiana: a new species (Crustacea: Amphipoda: Gammaridea) from the Mississippi Canyon (Northern Gulf of Mexico)
FIGURE 5. Heads of the ampeliscid species (A) A.mississippiana; (B) A. uncinata; (C) A. mexicana; (D) A. pugetica.
FIGURE 4 in Ampelisca mississippiana: a new species (Crustacea: Amphipoda: Gammaridea) from the Mississippi Canyon (Northern Gulf of Mexico)
FIGURE 4. Ampelisca mississippiana sp. nov.: Male, 5.4mm. Mississippi Canyon (28 32' 30.7" N, 89 49' 43.9" W).
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.