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1,068 results for “demographic”

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zenodo44/100

Data for "Demographic inequalities in digital spaces in China: The case of Weibo"

<p>These data underlie the results and figures used in the article "Demographic inequalities in digital spaces in China: The case of Weibo" (https://doi.org/10.36190/2023.01). This research was presented at the ICWSM workshop "Data for the wellbeing of the most vulnerable" on June 5, 2023.</p><p>The corresponding workflow can be found in the linked repository.</p><p>`README.md` provides more details.</p>

opencc-by-4.0Dec 2023View details →
zenodo44/100

Integrated Harmonized Dataset Adolescent Substance Use, Psychosocial Constructs, and Demographics

<p>This dataset contains final analysis cases used in our paper&nbsp;Psychosocial Constructs Related to Alcohol, Cigarette, and Marijuana Use:&nbsp;An Integrated and Harmonized Analysis.&nbsp;We assembled raw data from 25 longitudinal research projects. We collected data from our own research projects (7 projects) as well data provided by 18 researchers. Datasets included epidemiological studies and prevention studies. For the latter, only control group and pretest data were included. All data, including surveys and projects have been de-identified.</p>

opencc-by-3.0-usAug 2021View details →
zenodo44/100

Model codes and simulation data for "Modeling demographic-driven vegetation dynamics and ecosystem biogeochemical cycling in NASA GISS's Earth system model (ModelE-BiomeE v.1.0)"

<p>ModelE-BiomeE v1.0 model codes and data This folder contains the simulation data and model codes that were used in the paper &lsquo;Modeling demographic-driven vegetation dynamics and ecosystem biogeochemical cycling in NASA GISS&rsquo;s Earth system model (ModelE-BiomeE v.1.0)&rsquo; (https://doi.org/10.5194/gmd-2022-72). We included the data simulated by ModelE-BiomeE v.1.0 with settings of full demography (folder FullDemography) and single cohort (folder SingleCohort), and initial settings of land grids and vegetation data (folder GlobalVegetation). The codes include the full ModelE 2.1, module BiomeE files in ModelE, and the standalone BiomeE. In the folder FullDemography, we have 4 netcdf files for global output and 25 files for single grids output. The files &lsquo;FullDM_2588_JAN.nc&rsquo; and &lsquo;FullDM_2588_JUL.nc&rsquo; are the original model output of January and July in the year 2588. The file &lsquo;FullDM_2588_Annual.nc&rsquo; is the yearly summary of model simulations. The file &lsquo;FullDM_Selected.nc&rsquo; is an annual summary of 588 years of model simulation only with selected variables. The csv files are for single grids output at the time steps of daily and yearly. The last digit 1~8 represents the sites of &#39;BNC&#39;,&#39;MNT&#39;,&#39;HF&#39;,&#39;OKR&#39;,&#39;KZ&#39;,&#39;SV&#39;,&#39;WGK&#39;,&#39;TPJ&#39;, respectively (Table 1). Table 1 Site ID and file number [&#39;BNC&#39;, &nbsp;&#39;MNT&#39;, &nbsp; &#39;HF&#39;, &nbsp;&#39;OKR&#39;, &nbsp;&#39;KZ&#39;, &nbsp; &#39;SV&#39;, &nbsp; &#39;WGK&#39;, &nbsp;&#39;TPJ&#39;] [&#39;8991&#39;, &#39;8992&#39;, &#39;8993&#39;, &#39;8994&#39;, &#39;8995&#39;, &#39;8996&#39;, &#39;8997&#39;, &#39;8998&#39;] [&#39;8971&#39;, &#39;8972&#39;, &#39;8973&#39;, &#39;8974&#39;, &#39;8975&#39;, &#39;8976&#39;, &#39;8977&#39;, &#39;8978&#39;] [&#39;8961&#39;, &#39;8962&#39;, &#39;8963&#39;, &#39;8974&#39;, &#39;8965&#39;, &#39;8966&#39;, &#39;8977&#39;, &#39;8968&#39;] Please refer to Table 2 in the paper for the detail of these 8 sites. &lsquo;DailyLAIGPP.csv&rsquo; is a summary of all &lsquo;DailyEcosystem&rsquo; files with LAI and GPP data. We included the Python scripts that can be used to generate the figures in out paper (Plotting-BiomeE-MsTMIP.py, Plotting-Scatter-Comparison.py, PlottingBiomeEMaps.py, and PlottingGridOutput.py). For the convenience of readers (in reproducing our figures), we included the summary of reanalysis of the data from observations and MsTMIP in folder &lsquo;Sum-Obs-Simu&rsquo;. Please refer to the original sources listed in our paper for the detail of these data.</p>

opencc-by-4.0Sep 2022View details →
zenodo44/100

Supplementary material for "Demographic assessment of reintroduced bearded vultures in the Alps: success in the core, challenges in the periphery"

<p><strong>Abstract</strong></p> <ol> <li>&nbsp;Regular assessment of reintroduced populations is essential to guide management and provide lessons for other reintroduction projects. Bearded vulture <em>Gypaetus barbatus</em> reintroduction in the Alps began in 1986 with the release of the first fledglings, the first successful reproduction was recorded in 1997, and the population has grown steadily since. A previous assessment suggested that no further releases would be required to establish a self-sustaining population from a demographic point of view. However, this conclusion was based on a small sample size and spatially homogeneous demographic rates of released individuals, which may differ from and be spatially variable among wild-hatched individuals.</li> <li>Using longitudinal data and breeding site survey data, we constructed an integrated population model to examine the demography of the entire Alpine population, spatially stratified into a core and a periphery. We performed retrospective population analyses to identify demographic reasons of spatial differences in population growth, and conducted population viability analyses to assess the impact of future threats and reintroduction options.</li> <li>In 2021, an estimated 173 (CRI: 149-199) females were present in the Alps, of which 65 (CRI: 63-67) were breeders. Adult survival and productivity were higher in the core than in the periphery, so the population grew more strongly in the core than in the periphery. Differences in adult survival contributed most to the differences in population growth between the two areas.</li> <li>The population viability analysis predicts that the Alpine population will double in 10 years but that an increase in the mortality hazard above 0.055 will lead to a population decline. Unlike the population in the core, the population in the periphery is dependent on further releases at this stage.</li> <li>Bearded vulture reintroductions in the Alps have succeeded in creating a self-sustaining population with higher reproductive success and similar survival probabilities to the autochthonous Pyrenean population. In general, management should focus on preventing further mortality risks. In the periphery, reducing current mortality and increasing reproductive success are essential to make the population independent of releases.</li> </ol> <p>&nbsp;</p> <p><strong>Readme</strong></p> <p>Data files and code for all analyses and figures presented in the paper. The two data files are provided in csv format (SightingData.csv, OccupancyData.csv). There are five code files written for R, but some the main analysis requires software JAGS. The main code (IPM_Code.txt) contains a description of the data, code for loading and managing the data, and for fitting the integrated population model. The other files contain custom written functions (Functions.txt), code for the density dependence test (DensityDependence_Code.txt), code for the retrospective analyses (tLTRE_Code.txt) and code for miscellaneous statistics and figure generation (Figure_Code.txt).</p>

opencc-by-4.0May 2024View details →
zenodo44/100

EU Demographic Change Experts

<p>Network data on demographic experts in the European, coded from work team participation and event attendance. The data has been anonymized.</p>

opencc-by-4.0Mar 2018View details →
zenodo44/100

Supplementary material for "Palaeo-demographic modelling supports a population bottleneck during the Pleistocene-Holocene transition in Iberia"

<p>This Supplementary material encompasses the archaeological radiocarbon dates for the Iberian Peninsula analyzed in the article &ldquo;<em>Palaeo-demographic modelling supports a population bottleneck during the Pleistocene-Holocene transition in Iberia</em>&quot;. Specifically:</p> <ul> <li>&lsquo;<strong>PALEODEM_dataset.csv</strong>&rsquo; provides the dataset in comma-separated format. Contains the compiled raw data of each radiocarbon date used by every analytical procedure.</li> <li>&lsquo;<strong>PALEODEM_sites.xlsx</strong>&rsquo; is a spreadsheet containing the basic information of each archaeological site analyzed in this work. The columns include ID_site, name of Archaeological site, n<sup>o</sup> of <sup>14</sup>C dates, n<sup>o</sup> of assemblages, Regional Unit of correspondence, and bibliographical Reference.</li> <li>&lsquo;<strong>REFERENCES for PALEODEM_sites.docx</strong>&rsquo; is a text archive that collects the bibliographical references listed in the above mentioned &nbsp;&lsquo;Reference&rsquo; column, that have been the main sources of archaeological information.</li> </ul>

opencc-by-4.0Jan 2018View details →
zenodo44/100

Dataset for "Demographic yearbooks as a source of weather-related fatalities: the Czech Republic, 1919–2022"

<p><span>This deposit contains three .xlsx files.</span></p> <p><span>The file &bdquo;01_fatalities_1919-2022&ldquo; contains annual numbers of fatalities (males, females and sum) for individual categories of external death causes attributed to weather and natural extremes, excerpted from demographic yearbooks for the Czech Republic for the period 1919&ndash;2022. </span></p> <p><span>The file &bdquo;02_age_categories_1931-2022&ldquo; contains eight sheets with annual numbers of weather-related fatalities in the Czech Republic in the period 1931&ndash;2022 for eight age categories and for males and females separately. Sheets represent individual categories of death causes &ndash; Cold, Heat, Lightning, Natural hazards, Fall on ice or snow, Air pressure. Heat and Natural hazards are divided into two sheets &ndash; one with summarized numbers and one with numbers for individual sub-categories.</span></p> <p><span>The file &bdquo;03_clima_factors&ldquo; contains mean temperature of January&ndash;February (Br&aacute;zdil et al., 2012, extended) and mean annual number of days with a thunderstorm in the Czech Republic for the period 1919&ndash;2022 and mean temperature of winter season (DJF) in the Czech Republic for the period 1986/1987&ndash;2021/2022 (Br&aacute;zdil et al., 2012, extended).</span></p>

opencc-by-4.0Dec 2023View details →
zenodo44/100

Healthcare Expenditure and Demographic Trends: A Comparative Analysis of Selected Countries (2000-2024)

<p><strong><em><span>This research journal investigates the interplay between healthcare expenditure, life expectancy, and demographic characteristics across selected countries from 2000 to 2024. Utilizing quantitative analysis, the study examines healthcare spending as a percentage of GDP, average life expectancy, and the age distribution of populations. For instance, the USA's healthcare expenditure is projected to reach 19.2% of GDP by 2024, with an average life expectancy of 81.9 years. In contrast, Bangladesh's healthcare expenditure is anticipated to be 7.0% of GDP, with a life expectancy of 70.0 years. The findings reveal critical insights regarding the effectiveness and sustainability of healthcare systems, emphasizing the need for policy interventions that prioritize healthcare funding, especially in aging populations where the percentage of individuals aged 65 and older is expected to rise significantly&mdash;projected at 16.0% for the USA and 7.0% for Bangladesh in 2024</span></em></strong><strong><span>.</span></strong><strong><span> </span></strong></p>

opencc-by-4.0Sep 2024View details →
zenodo44/100

Genotype Data for "A genomic snapshot of demographic and cultural dynamism in Upper Mesopotamia during the Neolithic Transition"

<p>This repository contains genotype data from the article &quot;<a href="https://www.science.org/doi/10.1126/sciadv.abo3609">A genomic snapshot of demographic and cultural dynamism in Upper Mesopotamia during the Neolithic Transition</a>&quot;. Dataset preparation protocols are described in the article. Here, we only include the genotype files of 13 newly published &Ccedil;ay&ouml;n&uuml; samples in eigenstrat format.</p> <p>The 1KGYoruba suffix refers to the dataset prepared using variable positions in the Yoruba population (see the paper for details). Others are well known Human Origins and 1240K panels.&nbsp;</p> <p>Code and processed data related to the paper has been deposited <a href="http://doi.org/10.5281/zenodo.7086441">here</a>.</p> <p>* The first version has missing individuals.&nbsp;</p>

opencc-by-4.0Nov 2022View details →
zenodo44/100

Demographic factors and the environmental Kuznets curve: global plastic pollution by 2050 could be 2 to 4 times worse than projected

<p>These data are made of two files. One file provides the observed data we collected and cleaned from the World Bank database. The second file provides the simulation results from the STIRPAT model we designed based on the&nbsp;observed data abovementioned. Our results can be summarised as follows:</p> <p>Since 2015, the detrimental effects of plastic pollution have attracted media, public, and governmental attention. Considering economic growth is inevitable and a key driver of plastic contamination, it is worthwhile to analyze the environmental Kuznets curve (EKC) relationship between economic development and plastic pollution. To this end, we contribute by being the first to (i) use the Stochastic Impacts by Regression on Population, Affluence, and technology model (STIRPAT model) to investigate this EKC relationship; (ii) provide a comprehensive analysis of how demographic factors affect plastic pollution; and (iii) use panel model techniques to examine the drivers of plastic pollution. Our empirical results support an inverted U-shaped relationship between plastic pollution and income. They show that at current trends, global plastic pollution (that is, annual discard of inadequately managed plastic waste) is expected to grow from 52 million tons per year in 2020 to 257 million tons per year in 2050.</p>

opencc-by-4.0Dec 2022View details →
zenodo44/100

1805-1898 Census Records of Lausanne : a Long Digital Dataset for Demographic History

<p><strong>Context. </strong>This historical dataset stems from the project of automatic extraction of 72 census records of Lausanne, Switzerland. The complete dataset covers a century of historical demography in Lausanne (1805-1898), which corresponds to 18,831 pages, and nearly 6 million cells.</p> <p><strong>Content.</strong> The data published in this repository correspond to a first release, i.e. a diachronic slice of one register every 8 to 9 years. Unfortunately, the remaining data are currently under embargo. Their publication will take place as soon as possible, and at the latest by the end of 2023. In the meantime, the data presented here correspond to a large subset of 2,844 pages, which already allows to investigate most research hypotheses.</p> <p><strong>Description. </strong>The population censuses, digitized by the <a href="https://www.lausanne.ch/vie-pratique/culture/bibliotheques-et-archives/archives.html">Archives of the city of Lausanne</a>, continuously cover the evolution of the population in Lausanne throughout the 19th century, starting in 1805, with only one long interruption from 1814 to 1831. Highly detailed, they are an invaluable source for studying migration, economic and social history, and traces of cultural exchanges not only with Bern, but also with France and Italy. Indeed, the system of tracing family origin, specific to Switzerland, allows to follow the migratory movements of families long before the censuses appeared. The bourgeoisie is also an essential economic tracer. In addition, censuses extensively describe the organization of the social fabric into family nuclei, around which gravitate various boarders, workers, servants or apprentices, often living in the same apartment with the family.</p> <p><strong>Production. </strong>The structure and richness of censuses have also provided an opportunity to develop automatic methods for processing structured documents. The processing of censuses includes several steps, from the identification of text segments to the restructuring of information as digital tabular data, through Handwritten Text Recognition and the automatic segmentation of the structure using neural networks. Please note that the detailed extraction methodology, as well as the complete evaluation of performance and reliability is published in:</p> <ul> <li>Petitpierre R., Rappo L., Kramer M. (2023). <em>An end-to-end pipeline for historical censuses processing</em>. International Journal on Document Analysis and Recognition (IJDAR). doi: <a href="https://doi.org/10.1007/s10032-023-00428-9">10.1007/s10032-023-00428-9</a></li> </ul> <p><strong>Data structure.</strong> The data are structured in rows and columns, with each row corresponding to a household. Multiple entries in the same column for a single household are separated by vertical bars &lang;|&rang;. The center point &lang;&middot;&rang; indicates an empty entry. For some columns (e.g., street name, house number, owner name), an empty entry indicates that the last non-empty value should be carried over. The page number is in the last column.</p> <p><strong>Liability. </strong>The data presented here are not curated nor verified. They are the raw results of the extraction, the reliability of which was thoroughly assessed in the above-mentioned publication. We insist on the fact that for any reuse of this data for research purposes, the implementation of an appropriate methodology is necessary. This may typically include string distance heuristics, or statistical methodologies to deal with noise and uncertainty.</p>

opencc-by-4.0Mar 2023View details →
edi44/100

Demographic measures of Liatris ohlingerae (Asteraceae) in 20 populations across multiple habitats and time-since-fire intervals in south central Florida from 1997-2017

Demographic data were collected on 2,858 tagged individually marked plants annually from 1997 to 2017 in 20 populations across three sites on the southern end of the Lake Wales Ridge in south central Florida, USA. Our goal was to understand demographic responses including recruitment, survival, reproduction and mortality of individuals across populations, habitat types and fire-return-intervals. Habitats include rosemary scrub, scrubby flatwoods and human created sandy roadsides. Populations spanned three sites including Archbold Biological Station (18 populations), Florida Forest Service Arbuckle Tract of the Lake Wales Ridge State Forest (1 population), and Florida Fish and Wildlife Conservation Commission Gould Road property (1 population). Annual demographic measures include survival (including plant dormancy), stage, measures of size, reproductive effort and herbivory. Plots were surveyed annually during flowering in August for previously marked plants and searched for newly recruited putative seedlings or previously missed larger adults. This landscape is managed with periodic prescribed fire impacting some populations with additional post-burn censuses completed after the burn. In addition, damage following three hurricanes in 2004 were recorded. Plants were followed through their lifecycle and after four years of no aboveground growth, plants were assumed dead and tags removed from the field.

openCC0Sep 2018View details →
edi44/100

Mammalian herbivores restrict the altitudinal range limits of three alpine grass species (transplant and herbivore exclusion experiment and demographic data from natural populations), West Elk Mountains, Colorado, USA 2015-2018

Though rarely experimentally tested, biotic interactions have long been hypothesized to limit low-elevation range boundaries of species. We tested the effects of herbivory on three alpine-restricted plant species by transplanting plants below (novel), at the edge (limit), or in the center (core) of their current elevational range and factorially fencing-out above- and belowground mammals in the West Elk Mountains, Colorado, USA from 2015-2018. Herbivore damage was greater in range limit and novel habitats than in range cores. Exclosures increased plant biomass and reproduction more in novel habitats than in range cores, suggesting demographic costs of novel interactions with herbivores. We then used demographic models to project population growth rates, which increased 5-20% more under herbivore exclosure at range limit and novel sites than in core habitats. Our results identify mammalian herbivores as key drivers of the low-elevation range limits of alpine plants and indicate that upward encroachment of herbivores could trigger local extinctions by depressing plant population growth.

openCC (other)May 2021View details →
zenodo40/100

Demographic, economic, geospatial data for municipalities of the Central Federal District in Russia (excluding the city of Moscow and the Moscow oblast) in 2010-2016

<p>The database contains demographic, economic, geospatial data for 452 municipalities of the 16 administrative units of the Central Federal District in Russia (excluding the city of Moscow and the Moscow oblast) for 2010-2016.</p> <p>The sources of data are the municipal-level statistics of Rosstat, Google Maps data and calculated indicators. The statistical data were arranged by the year, the data on municipalities for which there were administrative and territorial transformations for the period under study were excluded (in some cases, the data were provided in accordance with the administrative-territorial demarcation as of 2016).</p> <p>Municipalities&#39; websites were used to fill the lack of population information in individual municipalities for some years.</p> <p>Calculated variables were made to estimate a number of indicators per capita, to introduce additional demographic indicators (e.g. migration inflow rate), to bring price economic indicators to base year prices (2010). For example, indicators of income of the local budget, volumes of investments in fixed assets (excluding budgetary funds), level of wages are modified to a comparable form (to 2010 prices).</p> <p>The distances on roads in different units of measurement from the geographical center of municipalities to the center of the capital of the region are calculated using the Google Maps database.</p> <p>Data mapping was performed using ArcGIS software.</p> <p>The data set consists of</p> <p>1) Municipalities_CFD_Russia_2010_2016_ENG.xlsx - The database of demographic, economic, geospatial data for 452 municipalities of the 16 administrative units of the Central Federal District in Russia (excluding the city of Moscow and the Moscow oblast) for 2010-2016,</p> <p>2) MUNICIPALITIES_CFD_RUSSIA_SHAPE.rar - The shape-files for maps construction,</p> <p>3) Fig.1. Municipalities ENG.jpg - The map of studied administrative units and municipalities of the Central Federal District in Russia .</p>

opencc-by-4.0Dec 2019View details →
zenodo40/100

Figure 2. Summer core area delineation. The straight line with a in Demographic characteristics, seasonal range and habitat topography of Balkan chamois population in its southernmost limit of its distribution (Giona mountain, Greece)

Figure 2. Summer core area delineation. The straight line with a slope of –1 represents the random use of space within the population seasonal range. The curve that sags below the line of random use represents the clumped use of space. The summer core area can be defined at the point whose tangent has slope –1, e.g. 85%, that is, whose tangent is parallel to the line of random use. This is also the point of the curve that is furthest from the line of random use.

opencc-by-4.0Jan 2014View details →
dryad40/100

Data from: Exploring rainforest diversification using demographic model testing in the African foam-nest treefrog (Chiromantis rufescens)

Aim: Species with wide distributions spanning the African Guinean and Congolian rainforests are often composed of genetically distinct populations or cryptic species with geographic distributions that mirror the locations of the remaining forest habitats. We used phylogeographic inference and demographic model testing to evaluate diversification models in a widespread rainforest species, the African Foam-nest Treefrog (Chiromantis rufescens). Location: Guinean and Congolian rainforests, West and Central Africa. Taxon: Chiromantis rufescens. Methods: We collected mitochondrial DNA (mtDNA) and single nucleotide polymorphism (SNP) data for 130 samples of Chiromantis rufescens. After estimating population structure and inferring species trees using coalescent methods, we tested demographic models to evaluate alternative population divergence histories that varied with respect to gene flow, population size change, and periods of isolation and secondary contact. Species distribution models were used to identify regions of climatic stability that could have served as forest refugia since the Last Interglacial. Results: Population structure within Chiromantis rufescens resembles the major biogeographic regions of the Guinean and Congolian forests. Coalescent-based phylogenetic analyses provide strong support for an early divergence between the western Upper Guinean forest and the remaining populations. Demographic inferences support diversification models with gene flow and population size changes even in cases where contemporary populations are currently allopatric, which provides support for forest refugia and barrier models. Species distribution models suggest that forest refugia were available for each of the populations throughout the Pleistocene. Main conclusions: Considering historical demography is essential for understanding population diversification, especially in complex landscapes such as those found in the Guineo-Congolian forest. Population demographic inferences help connect patterns of genetic variation to diversification model predictions. The diversification history of Chiromantis rufescens was shaped by a variety of processes, including vicariance from river barriers, forest fragmentation, and adaptive evolution along environmental gradients.

opencc-zeroAug 2020View details →
zenodo40/100

Holocene regional population dynamics and climatic trends in the Near East: a first comparison using archaeo-demographic proxies (dataset and R scripts)

<p>The present digital archive is the outcome of the paper: <strong>Palmisano, A., Lawrence, D., de Gruchy, M.W., Bevan, A., and Shennan, S., 2021. <a href="https://doi.org/10.1016/j.quascirev.2020.106739">Holocene regional population dynamics and climatic trends in the Near East: a first comparison using archaeo-demographic proxies</a>. <em>Quaternary Science Reviews</em>, <em>252</em></strong>.</p> <p>The dataset included here provides a collection of <strong>10,606</strong> radiocarbon dates, <strong>1884</strong> sites from archaeological surveys (1336 from Central Anatolia and 478 from Upper Mesopotamia) and <strong>16</strong> palaeoclimatic records for a period spanning between 14,000 and 2500 BP. In addition, the digital archive related to this paper provides reproducible analyses in the form of four scripts written in R statistical computing language.</p> <p>List of versions:</p> <ul> <li><strong>2.0.</strong> 15 December 2020 &mdash; Includes a few minor error corrections (the files &#39;References.txt&#39; within the folder csv and the script &#39;radiocarbon.R&#39;).</li> <li><strong>1.0</strong>&nbsp; 28 November 2020 &mdash; First public release of the dataset on Zenodo.</li> </ul>

opencc-by-4.0Nov 2020View details →
zenodo40/100

Policy options for resilience-enhancing farm demographics

<p>European agriculture as well as the wider economy face substantial demographic changes in the upcoming decades. The baby boomer generation will retire within the next 10 to 15 years and the cohorts of the young generations which will enter the labour market in the next decades are much smaller in size. Accordingly, the farming sector will have to compete with other sectors and urban areas which offer attractive career prospects. The SURE-Farm project seeks to better understand the sustainability and resilience of European farming systems, including the challenges related to farm demographics and what this means for structural change. This policy brief aims to tie the findings of SURE-Farm on farm demographics with policy options which may enable resilient farm structures.</p>

opencc-by-4.0May 2020View details →
dryad40/100

Data from: Evolutionary and demographic history of the Californian scrub white oak species complex: an integrative approach

<p>Understanding the factors promoting species formation is a major task in evolutionary research. Here, we employ an integrative approach to study the evolutionary history of the Californian scrub white oak species complex (genus <em>Quercus</em>). To infer the relative importance of geographical isolation and ecological divergence in driving the speciation process, we (i) analyzed inter- and intra-specific patterns of genetic differentiation and employed an approximate Bayesian computation (ABC) framework to evaluate different plausible scenarios of species divergence. In a second step, we (ii) linked the inferred divergence pathways with current and past species distribution models, and (iii) tested for niche differentiation and phylogenetic niche conservatism across taxa. ABC analyses showed that the most plausible scenario is the one considering the divergence of two main lineages followed by a more recent pulse of speciation. Genotypic data in conjunction with species distribution models and niche differentiation analyses support that different factors (geography vs. environment) and modes of speciation (parapatry, allopatry and maybe sympatry) have played a role in the divergence process within this complex. We found no significant relationship between genetic differentiation and niche overlap, which probably reflects niche lability and/or that multiple factors have contributed to speciation. Our study shows that different mechanisms can drive divergence even among closely related taxa representing early stages of species formation and exemplifies the importance of adopting integrative approaches to get a better understanding of the speciation process.</p>

opencc-zeroDec 2014View details →
zenodo40/100

Can accurate demographic information about people who use prescription medications non-medically be derived from Twitter?

<p>This archive contains over 3 billion Tweet IDs associated with the paper:<br>"Can accurate demographic information about people who use prescription medications non-medically be derived from Twitter?"</p> <p>The data provides:<br>X (Twitter) IDs of posts included in the study. The IDs can be used to retrieve the original posts via the Twitter API. Posts removed by the original subscribers or whose visibilities are no longer public cannot be retrieved by the poster.&nbsp;</p> <p>Full citation:<br>Yang YC, Al-Garadi MA, Love JS, Cooper HLF, Perrone J, Sarker A. Can accurate demographic information about people who use prescription medications nonmedically be derived from Twitter? Proc Natl Acad Sci U S A. 2023 Feb 21;120(8):e2207391120. doi: 10.1073/pnas.2207391120. Epub 2023 Feb 14. PMID: 36787355; PMCID: PMC9974473.</p> <p>Python scripts related to the analysis are available as supplementary material with the paper.&nbsp;</p> <p>Contact:&nbsp;<br>Abeed Sarker<br>abeed@dbmi.emory.edu</p> <p>Funding:<br>National Institute on Drug Abuse (R01DA057599).</p>

opencc-by-4.0Dec 2022View details →

ScienceDex guides

Understand access before you commit

These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.

Compare curated 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.

allen-brain-atlas
neuroscienceopenDocumentation, web resources, and API references are available online.
Last verified 2026-04-30Open record

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.

abode-home-cage
behavioral-neuroscienceopenThe DataShare record exposes download links for annotations, documentation, license text, and the zipped per-snippet data directory.
Last verified 2026-04-30Open record

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.

dandi-nwb
electrophysiologyopenPublished Dandiset metadata and archive endpoints are available through the production DANDI API.
Last verified 2026-04-30Open record

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.

ibl
behavioral-neuroscienceopenPublic sessions can be searched and loaded from the IBL public data server through ONE.
Last verified 2026-04-29Open record

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.

openneuro
neuroscienceopenPublished datasets are available on demand over the internet.
Last verified 2026-04-29Open record