cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5683/sp3/t0fx1e
title: Interactive effects of immediate and ancestral salt stress on fitness in duckweed

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;&lt;em&gt;Premise of Research&lt;/em&gt;&lt;/p&gt;
&lt;p&gt;Organisms that reproduce asexually must respond to abiotic stresses in their environment while contending with the potential disadvantage of the reduced ability for genetic variation through recombination. Common duckweed (&lt;em&gt;Lemna minor&lt;/em&gt;) is an aquatic plant that reproduces predominantly asexually through the budding of ramets. As a freshwater plant, duckweed experiences stress from salt (e.g., NaCl), which detrimentally affects growth, photosynthesis, and cellular processes. We took a demographic approach to examine whether ancestral exposure to salt stress affects the ability of duckweed offspring to tolerate immediate exposure to the same stress.&lt;/p&gt;
&lt;p&gt;&lt;em&gt;Methodology&lt;/em&gt;&lt;/p&gt;
&lt;p&gt;We placed three consecutive clonal generations of duckweed in an environment with 2 g L&lt;sup&gt;-1&lt;/sup&gt; NaCl (non-lethal salt stress) or 0 g L&lt;sup&gt;-1&lt;/sup&gt; NaCl (control), followed by an additional 0-3 generations in the control environment to vary the presence and schedule of ancestral stress. After these treatments, we used the offspring produced as focal plants for the experiment. Half were placed into the salt-stress environment, and half were placed in control conditions, and focal plants were tracked longitudinally.&lt;/p&gt;
&lt;p&gt;&lt;em&gt;Pivotal Results&lt;/em&gt;&lt;/p&gt;
&lt;p&gt;Immediate stress decreased fitness, due to a slowing of reproduction, suggesting a cost of stress tolerance. The effects of ancestral stress, and the interaction of immediate and ancestral stress, were more complex. Specifically, recent ancestral stress induced plants to produce offspring more quickly, but with the potential cost of lowered offspring quality.&lt;/p&gt;
&lt;p&gt;&lt;em&gt;Conclusions&lt;/em&gt;&lt;/p&gt;
&lt;p&gt;Our results amplify findings that responses to, and fitness consequences of, current stressors can be contingent on past exposure.&lt;/p&gt;
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;p&gt;R software is required to run the script.&lt;/p&gt;
description: <b>Dryad version number:</b> 3
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.qnk98sfnd
<b>Storage size:</b> 206283
<b>Visibility:</b> public
DOI: 10.5683/sp3/fugxun
title: Introgression between Sphyrapicus nuchalis and S. varius sapsuckers in a hybrid zone in west-central Alberta

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;Studying species interactions at hybrid zones allows biologists to understand the forces that promote speciation. Hybridization among &lt;i&gt;Sphyrapicus nuchalis&lt;/i&gt;, &lt;i&gt;S. varius&lt;/i&gt;, and &lt;i&gt;S. ruber&lt;/i&gt; has long been acknowledged, and hybrid zones between &lt;i&gt;S. nuchalis/S. ruber&lt;/i&gt; and &lt;i&gt;S. varius/S. ruber&lt;/i&gt; have been characterized with both genetic and genomic data. Using a combination of next-generation Restriction Site-Associated DNA sequencing (RAD-Seq) and traditional genetic methods, we examined patterns of introgression in the poorly characterized &lt;i&gt;S. nuchalis/S. varius&lt;/i&gt; contact zone; the two most similar species in the complex, though they are not each other’s closest relatives. We found high introgression rates, with several early and many advanced generation hybrids along a 275 km stretch of Rocky Mountain foothill, pointing to a well-established hybrid zone with hybrid individuals backcrossing with individuals from the parental species and each other. Plumage colouration in the hybrid zone was a relatively poor indicator of parental or hybrid status, which could be attributed to the possible involvement of few large effect genes.&lt;/p&gt;
description: &lt;b&gt;Methods&lt;/b&gt;&lt;br /&gt;&lt;p&gt;Genetic data were taken from sapsucker blood and tissue samples. These were sequenced using GBS or ddRAD sequencing methods and/or screened at three polymorphic SNP loci. GBS data were processed in Stacks, ddRAD in Tassel, then statistical analyses were performed in R. PCAs were made using scripts (named genomics_r_functions.R) from Irwin, D.E., Alcaide, M., Delmore, K.E., Irwin, J.H., &amp; Owens, G. (2016). Recurrent selection explains parallel evolution of genomic regions of high relative but low absolute differentiation in a ring species. Molecular Ecology, 25(18), 4488–4507.&lt;/p&gt;
description: <b>Dryad version number:</b> 7
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.w3r2280qt
<b>Storage size:</b> 1504833
<b>Visibility:</b> public
DOI: 10.5683/sp3/vleg2y
title: Memory reactivation in rat medial prefrontal cortex occurs in a subtype of cortical UP state during slow-wave sleep

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;jats:p&gt;Interaction between hippocampal sharp-wave ripples (SWRs) and UP states, possibly by coordinated reactivation of memory traces, is conjectured to play an important role in memory consolidation. Recently, it was reported that SWRs were differentiated into multiple subtypes. However, whether cortical UP states can also be classified into subtypes is not known. Here, we analysed neural ensemble activity from the medial prefrontal cortex from rats trained to run a spatial sequence-memory task. Application of the hidden Markov model (HMM) with three states to epochs of UP–DOWN oscillations identified DOWN states and two subtypes of UP state (UP-1 and UP-2). The two UP subtypes were distinguished by differences in duration, with UP-1 having a longer duration than UP-2, as well as differences in the speed of population vector (PV) decorrelation, with UP-1 decorrelating more slowly than UP-2. Reactivation of recent memory sequences predominantly occurred in UP-2. Short-duration reactivating UP states were dominated by UP-2 whereas long-duration ones exhibit transitions from UP-1 to UP-2. Thus, recent memory reactivation, if it occurred within long-duration UP states, typically was preceded by a period of slow PV evolution not related to recent experience, and which we speculate may be related to previously encoded information. If that is the case, then the transition from UP-1 to UP-2 subtypes may help gradual integration of recent experience with pre-existing cortical memories by interleaving the two in the same UP state.&lt;/jats:p&gt;
 &lt;jats:p&gt;This article is part of the Theo Murphy meeting issue ‘Memory reactivation: replaying events past, present and future'.&lt;/jats:p&gt;
description: <b>Dryad version number:</b> 2
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.qv9s4mwbb
<b>Storage size:</b> 168743197
<b>Visibility:</b> public
DOI: 10.5683/sp3/m8z0mi
title: Microsatellite genotyping data for habitat-linked genetic structure for white-crowned sparrow (Zonotrichia leucophrys): local factors shape population genetic structure

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;Ecological, environmental, and geographic factors all influence genetic structure. Species with broad distributions are ideal systems because they cover a range of ecological and environmental conditions allowing us to test which components predict genetic structure. This study presents a novel, broad geographic approach using molecular markers, morphology, and habitat modelling to investigate rangewide and local barriers causing contemporary genetic differentiation within the geographical range of three white-crowned sparrow (&lt;i&gt;Zonotrichia leucophrys&lt;/i&gt;) subspecies: &lt;i&gt;Z. l. gambelii, Z. l. oriantha, &lt;/i&gt;and &lt;i&gt;Z. l. pugetensis&lt;/i&gt;.  Three types of genetic markers showed geographic distance between sampling sites, elevation, and ecosystem type are key factors contributing to population genetic structure. Microsatellite markers revealed white-crowned&lt;i&gt; &lt;/i&gt;sparrows&lt;i&gt; &lt;/i&gt;do not group by subspecies, but instead indicated four groupings at a rangewide scale and two groupings based on coniferous and deciduous ecosystems at a local scale. Our analyses of morphological variation also revealed habitat differences; sparrows from deciduous ecosystems are larger than individuals from coniferous ecosystems based on principal component analyses. Habitat modeling showed isolation by distance was prevalent in describing genetic structure, but isolation by resistance also had a small but significant influence. Not only do these findings have implications concerning the accuracy of subspecies delineations, they also highlight the critical role of local factors such as habitat in shaping contemporary population genetic structure of species with high dispersal ability.&lt;/p&gt;
description: &lt;b&gt;Methods&lt;/b&gt;&lt;br /&gt;&lt;p&gt;We genotyped 328 individuals at nine polymorphic microsatellite loci (Bensch et al., 1997; Dawson et al., 1997; Hanotte et al., 1994; Petren, 1998; Poesel et al., 2009; Stenzler et al., 2004).  Genomic DNA was amplified in 10 µL reaction volumes containing colourless GoTaq® Flexi buffer (Promega), 0.2 mM dNTP, and 0.8 mM or 1 mM MgCl&lt;sub&gt;2&lt;/sub&gt;, 0.5 µM forward and reverse primer, 0.05 µM fluorescent M13 tag, 0.5 U GoTaq® Flexi DNA polymerase (Promega).&lt;/p&gt;
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;p&gt;Missing values are scored as zero in this dataset&lt;/p&gt;
description: <b>Dryad version number:</b> 3
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.zw3r22882
<b>Storage size:</b> 345972
<b>Visibility:</b> public
DOI: 10.5683/sp3/rd92kb
title: Minimal assay detects population-level senescence in the aquatic plant Lemna minor

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;At the population level, senescence occurs when older individuals have an increased risk of death and reduced reproduction compared to younger individuals. We investigated senescence in the aquatic plant &lt;em&gt;Lemna minor&lt;/em&gt; (common duckweed), an important species for plant senescence research. Our objectives were to (1) confirm or refute the presence of population-level senescence in this model species; (2) develop a minimal assay of senescence requiring only once-weekly data collection; and (3) test whether there were appreciable differences in senescence in plants grown in glass compared to polystyrene petri dishes, with an aim to reducing single-use plastic waste and long-term research materials costs. We found that weekly survival arced downward with age when viewed on a semi-log plot, and weekly production of descendants decreased with age, with both findings indicating population-level senescence that matched previous work using more frequent data-collection (per Objectives 1 and 2). Additionally, we found no noteworthy differences in senescence between plants grown in glass versus polystyrene petri dishes (per Objective 3). The use of weekly data collection could liberate personnel resources for other research-group functions, and could make the &lt;em&gt;Lemna&lt;/em&gt; system suitable for senescence- or demography-education exercises. The use of glass dishes could reduce lab waste and expense.&lt;/p&gt;
description: <b>Dryad version number:</b> 2
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.tdz08kq7h
<b>Storage size:</b> 10440
<b>Visibility:</b> public
DOI: 10.5683/sp3/usvgrf
title: Neural ensemble reactivation in REM and SWS coordinate with muscle activity to promote rapid motor skill learning

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;Neural activity patterns of recent experiences are reactivated during sleep in structures critical for memory storage, including hippocampus and neocortex. This reactivation process is thought to aid memory consolidation. Although synaptic rearrangement dynamics following learning involve an interplay between slow-wave sleep (SWS) and rapid eye movement sleep (REM), most physiological evidence implicates SWS directly following experience as a preferred window for reactivation. Here we show that reactivation occurs in both REM and SWS, and that coordination of REM and SWS activation on the same day is associated with rapid learning of a motor skill. We performed 6-hour recordings from cells in rats’ motor cortex as they were trained daily on a skilled reaching task. In addition to SWS following training, reactivation occurred in REM, primarily during the pre-task rest period, and REM and SWS reactivation occurred on the same day in rats that acquired the skill rapidly. Both pre-task REM and posttask SWS activation were coordinated with muscle activity during sleep, suggesting a functional role for reactivation in skill learning. Our results provide the first demonstration that reactivation in REM sleep occurs during motor skill learning, and that coordinated reactivation in both sleep states on the same day, although at different times, is beneficial for skill learning.&lt;/p&gt;
description: &lt;b&gt;Methods&lt;/b&gt;&lt;br /&gt;&lt;p&gt;Tetrode recordings from rat primary motor cortex during learning of skilled reaching task.  Recordings include sleep before and after daily training sessions.  The main analysis done was PCA reactivation based on Peyrache et al. 2009.&lt;/p&gt;
description: <b>Dryad version number:</b> 3
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.7d7wm37rn
<b>Storage size:</b> 6268088490
<b>Visibility:</b> public
DOI: 10.5683/sp3/smhmzf
title: Productivity of riparian Populus forests: satellite assessment along a prairie river with an environmental flow regime

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;In semi-arid regions, the growth and survival of cottonwoods (riparian Populus species) depend on river water supplementing the limited precipitation. Indicators of growth and productivity are needed to assess how altered streamflow regimes on regulated rivers impact cottonwood trees and the riparian forest ecosystems they support. Satellite imagery from the Landsat program was used to make historical assessments of ecosystem productivity in a riparian cottonwood forest along a regulated prairie river in southern Alberta, Canada from 1984 to 2020, with an environmental flow regime that increased the minimum flows implemented in 1993. A version of the near-infrared reflectance of vegetation scaled with incoming sunlight (NIRvP) was calculated from Landsat images to  provide a proxy for primary production. NIRvP was validated against gross primary production measurements from eddy covariance and cottonwood basal area increment measurements from tree ring analyses. Streamflow and weather data were used to assess what  environmental conditions drive year-to-year variations in NIRvP.&lt;/p&gt;
description: <b>Dryad version number:</b> 3
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.1jwstqjwg
<b>Storage size:</b> 481006
<b>Visibility:</b> public
DOI: 10.5683/sp3/lokgub
title: Replication Data for: Experimental evidence that a photon can spend a negative amount of time as an atomic excitation

description: This repository contains all the data used to obtain the results presented in the paper. They are separated in folders for each set of parameters and each folder contains the data extracted for several runs.
DOI: 10.5683/sp3/e0z0o7
title: Supplementary Files (S1-S30) - Comparing Phonological Processing Contributions to Reading Across Orthographic Depth: Urdu-English Biscriptal Bilinguals

description: Supplementary Files (S1-S30) - Comparing Phonological Processing Contributions to Reading Across Orthographic Depth: Urdu-English Biscriptal Bilinguals
DOI: 10.5683/sp3/4vrybb
title: Zircon parent rock prediction

description: These files are related to the article "Improved trace element discrimination of kimberlitic and carbonatitic zircon: implications for zircon origin in kimberlite and the search for superdeep diamonds," submitted to Mineralogy and Petrology. Included are new models for the prediction of zircon parent rock using trace-element compositional data and the random forest statistical method, applied using R. Packages for Windows and MAC-OS provide the necessary installation files for R, as well as the model and script files required to test new zircon compositions. All required files and installers are included in the provided packages, though other versions of R can be used, if preferred. Detailed instructions are provided with each package. For details on model calibration and performance evaluation, please see the related article.
DOI: 10.5683/sp3/sf4kzx
title: Postal Code Population Weight File [Canada], May 1996 Postal Codes, Census of Canada 1996
title: Postal Code Conversion File, May 1996 Postal Codes, Census of Canada 1996
title: PCPWF [Canada], May 1996 Postal Codes, Census of Canada 1996

description: &lt;p&gt;The Postal Code Population Weight File has been created as a supplementary product to the Postal Code Conversion File (PCCF). It provides users with a population ‘weight’ for postal codes with multiple links on the PCCF. The weight associated with each record on the Postal Code Population Weight File represents the proportion of the
population reporting the postal code within a specific enumeration area.&lt;/p&gt;

&lt;p&gt;Only a small percentage of postal codes are linked to more than one enumeration area on the PCCF (4%). However, these postal codes tend to serve relatively large areas and large populations. The weights will allow users to allocate their data proportionally to the population distribution reported in the 1996 Census.&lt;/p&gt;

&lt;p&gt;This file can also be used in combination with the PCCF to identify those postal code-to-enumeration area links confirmed by census reported postal code data.&lt;/p&gt;
description: Postal Code Conversion File
description: Some background about the Postal Code Population Weight File 

This product is aimed at sophisticated users of the PCCF. It offers an alternative to using the single link indicator where postal codes are linked to several geographic areas. By using the single link indicator, users allocate all their data to a single geographic unit when the population is really spread over a sometimes much larger area. Where Census data was available, the new file provides a distribution (weights) of the population across these multiple geographic units. This proportional allocation will be a particular interest to users trying to integrate data on postal geography with enumeration area data. 

This file will not be updated (not until data from the 2001 Census is available). As stated in the Reference Guide, not all postal codes are included, only those for which census data was available and deemed significant.
DOI: 10.5683/sp3/qz3x5n
title: Supplemental files for Can dietary palmitic supplementation and milking frequency modify the cheesemaking properties of milk?

description: This repository includes the supplemental files for the manuscript entitled "Can dietary palmitic supplementation and milking frequency modify the cheesemaking properties of milk?" and published in the Journal of Dairy Science. Table S1. Formulation of dietary treatments. Table S2. Standardized milk fatty acid profile. Table S3. Composition of raw milk received at the pilot plant
DOI: 10.5683/sp3/ry3hqm
title: IEA Energy Technology RD&D Statistics. Estimated RD&D budgets by region, 1974-2022
title: Energy Technology RD&D Budgets. Estimated RD&D budgets by region, 1974-2022

description: This dataset covers the estimated RD&D budgets across 4 regions of IEA member countries (IEA total, Americas, Europe, and Asia Oceania), for 3 products and 11 flows. [Dataset editions 2021-2023].
description: IEA Energy Technology RD&D Statistics
DOI: 10.5683/sp3/uweays
title: IEA Energy Technology RD&D Statistics. RD&D Budget, 1974-2022
title: Energy Technology RD&D Budgets. RD&D Budget, 1974-2022

description: This dataset includes statistics on energy technology Research & Development and dissemination as well as R&D budget for IEA countries. It presents shifts in R&D, expenditures associated with investments and further analyzes budget allocations in terms of flow. [Dataset editions 2015-2023].
description: IEA Energy Technology RD&D Statistics
DOI: 10.5683/sp3/tfrtqf
title: IEA Energy Technology RD&D Statistics. RD&D Budgets per GDP, 1974-2023
title: Energy Technology RD&D Budgets. RD&D Budgets per GDP, 1974-2023

description: This dataset covers the RD&D Budgets per thousand units of GDP for 30 countries. [Dataset editions 2021-2023].
description: IEA Energy Technology RD&D Statistics
DOI: 10.5683/sp3/esrnzs
title: IEA Energy Technology RD&D Statistics. RD&D Indicators, 1974-2022
title: Energy Technology RD&D Budgets. RD&D Indicators, 1974-2022

description: This dataset includes statistics on research & development within the energy technology industry as well as R&D dissemination indicators (exchange rate, PPP, Nominal GDP, GDP deflator). Data coverage commences in 1974. [Dataset editions 2015-2023].
description: IEA Energy Technology RD&D Statistics
DOI: 10.5683/sp3/6nlgcg
title: IEA Energy Technology RD&D Statistics. Summary country RD&D budgets, 1974-2022
title: Energy Technology RD&D Budgets. Summary country RD&D budgets, 1974-2022

description: This dataset includes statistics on countries' RD&D budgets, covering 31 countries (30 individual countries + European Union), 8 products and 11 flows (8 summary groups of energy technologies + Total + Memos: Low-carbon and Non-low-carbon).
description: IEA Energy Technology RD&D Statistics
DOI: 10.5683/sp3/eil8o2
title: IEA Natural Gas Information Statistics. OECD - Natural Gas exports by destination, 1960-2022

description: This table contains data on natural gas exports by origin for 38 OECD countries and 14 European non-OECD countries from 1960 to 2023, with 2023 data being provisional. Country aggregates for OECD Total, OECD Americas, OECD Asia Oceania, OECD Europe, IEA Total, EU27, and EU28 are also included. Data are available for total trade, pipeline trade, and LNG trade. Data are in million cubic metres (MCM) and Terajoule (TJ).
description: IEA Natural Gas Information Statistics
DOI: 10.5683/sp3/dpx7ab
title: IEA Natural Gas Information Statistics. OECD - Natural Gas imports by origin, 1960-2022

description: This table contains data on natural gas imports by origin for OECD countries. [Dataset editions 2021-2023]
description: IEA Natural Gas Information Statistics
DOI: 10.5683/sp3/h8i61w
title: IEA Natural Gas Information Statistics. OECD - Natural gas supply and consumption, 1960-2022

description: This table contains world data on natural gas supply as well as natural gas consumption. [Dataset editions 2015-2023].
description: IEA Natural Gas Information Statistics