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datasets available to search
ShareScore release 0.9.0
Dataset results
22 results for “long-term population study”
Long-term (1935-2019) tree population data from remeasurements of a large network of permanent study plots in old-growth forest, Dukes Research Natural Area, Marquette Co., MI, USA
The Dukes Research Natural Area (Hiawatha National Forest, Marquette Co., MI) amounts to ca. 100 ha of minimally disturbed original forests, including a mix of mesic 'hemlock-northern hardwood' types and peaty wetlands dominated by several species of swamp conifers and black ash (Fraxinus nigra). The RNA hosts a regular grid of 250 0.2-acre (~0.08 ha) permanent monitoring (CFI) plots. This package includes tree censuses for subsets of CFI plots conducted in 1935, 1948, and 1974-1980, and repeated censuses with mapped stems from 1989 to 2019. This 84-year record constitutes one of the longest repeated-measurement, permanent-plot data-sets for old-growth temperate forest.
Long-Term Studies of Huron Mountain Club Small Mammal Populations
These datasets include small mammal population data collected by Richard Manville (1940-1942), Phillip Myers (2003), and Allison Poor (2004-2005). Small mammal traps were initially placed in 8 locations throughout the Huron Mountains in Michigan's Upper Peninsula from 1940-1942 by Richard Manville. Small mammals present in the traps were recorded once each year and twice in 1941. This study was repeated by Phillip Myers and Allison Poor from 2003-2005.
Fig. 2 in Tapeworms detected in wolf populations in Central Italy (Umbria and Marche regions): A long-term study
Fig. 2. Neighbor-Joining phylogenetic tree of the sequenced Taenia species and E. granulosus s.s. G3. Maximum Composite Likelihood method, 1000 bootstraps (MEGA11 Software).
Fig. 1 in Tapeworms detected in wolf populations in Central Italy (Umbria and Marche regions): A long-term study
Fig. 1. Details of sampling and results: number of wolves by region (A); number of positive wolves (B); percentages of positive and negative samples (C); geolocation of parasites (D).
Dataset for study Long-term changes in urban bird populations: correspondence of the trends between urban and rural areas
<p>Dataset used for a study "Long-term changes in urban bird populations: correspondence of the trends between urban and rural areas"</p> <p>Data structure:</p> <p>Type = type of environment (R - rural, U - urban)<br> POID = unique identifier of each census point across all transects<br> Transect = unique identifier of a transect (each contains 20 census points)<br> Point = unique identifier of a point within one transect<br> Year = year of the count<br> Species = scientific name of bird species<br> Count = number of birds counted</p> <p>Each species has its own datafile.</p>
White-tailed Deer Population Study, 1962-2008, Adirondack Long-Term Ecological Monitoring Program by Adirondack Ecological Center of the State University of New York College of Environmental Science and Forestry, Newcomb, New York, USA
From 1962-2008, White-tailed deer (Odocoileus virginianus) were studied at the SUNY ESF Huntington Wildlife Forest (HWF) and adjacent private and public lands in Essex and Hamilton Counties, New York, USA. Social group membership, migration and dispersal, reproductive biology, and many other objectives were studied over the course of the study period. Deer were captured, individually marked with ear tags or streamers, fitted with radio collars (later, GPS collars), and released to be tracked for a variety of research objectives. Deer were located by visual observation, recapture, and/or their location was estimated with ground, air or tower-based radio telemetry. Physical condition of deer was recorded at capture and at subsequent recapture or visual observation select variables were documented (e.g., deer group size; presence of fawns with does). Physiological, demographic, social organization, home range and behavior data were collected. HWF is a no-hunting area but deer could be harvested if they moved to huntable parts of the study area; there was a managed hunt on HWF in 1966-1970 and in 1984 to meet deer density and forest management objectives at that time. Unmarked deer were incorporated into the dataset if they were roadkilled, harvested or otherwise encountered during field activity; these deer did not receive individual identifications but may have been incorporated into select projects.
Data from: Statin use and cognitive function: population-based observational study with long-term follow-up
We aimed to evaluate the association between statin use and cognitive function. Cognitive function was measured with the Ruff Figural Fluency Test (RFFT; worst score, 0; best score, 175 points) and the Visual Association Test (VAT; low performance, 0–10; high performance, 11–12 points) in an observational study that included 4,095 community-dwelling participants aged 35–82 years. Data on statin use were obtained from a computerized pharmacy database. Analysis were done for the total cohort and subsamples matched on cardiovascular risk (N = 1232) or propensity score for statin use (N = 3609). We found that a total of 904 participants (10%) used a statin. Statin users were older than non-users: mean age (SD) 61 (10) vs. 52 (11) years (p<0.001). The median duration of statin use was 3.8 (interquartile range, 1.6–4.5) years. Unadjusted, statin users had worse cognitive performance than non-users. The mean RFFT score (SD) in statin users and non-users was 58 (23) and 72 (26) points, respectively (p<0.001). VAT performance was high in 261 (29%) statin users and 1351 (43%) non-users (p<0.001). However, multiple regression analysis did not show a significant association of RFFT score with statin use (B, −0.82; 95%CI, −2.77 to 1.14; p = 0.41) nor with statin solubility, statin dose or duration of statin use. Statin users with high doses or long-term use had similar cognitive performance as non-users. This was found in persons with low as well as high cardiovascular risk, and in younger as well as older subjects. Also, the mean RFFT score per quintile of propensity score for statin use was comparable for statin users and non-users. Similar results were found for the VAT score as outcome measure. In conclusion, statin use was not associated with cognitive function. This was independent of statin dose or duration of statin use.
Data from: Population collapse of habitat-forming species in the Mediterranean: a long-term study of gorgonian populations affected by recurrent marine heatwaves
<p><span><span><span><span><span><span><span><span><span><span><span>Understanding the resilience of temperate reefs to climate change requires exploring the recovery capacity of their habitat-forming species from recurrent marine heatwaves (MHWs). Here, we show that, in a Mediterranean highly enforced Marine Protected Area established more than 40 years ago, habitat-forming octocoral populations that were firstly affected by a severe MHW in 2003 have not recovered after 15 years. Contrarily, they have followed collapse trajectories that have brought them to the brink of local ecological extinction. Since 2003, impacted populations of the red gorgonian <i>Paramuricea clavata</i> (Risso, 1826) and the red coral <i>Corallium rubrum</i> (Linnaeus, 1758) have followed different trends in terms of size structure, but a similar progressive reduction in density and biomass. Concurrently, recurrent MHWs were observed in the area during the 2003-2018 study period, which may have hindered populations recovery. The studied octocorals play a unique habitat-forming role in the coralligenous assemblages (i.e., reefs endemic to the Mediterranean Sea home to approximately 10% of its species). Therefore, our results underpin the great risk that recurrent MHWs pose for the long-term integrity and functioning of these emblematic temperate reefs.</span></span></span></span></span></span></span></span></span></span></span></p>
FIG. 3 in A Long-term Demographic Study of a Spotted Salamander (Ambŋstoma maculatum) Population in Central Ohio
FIG. 3.—Relationships between percent mass loss and number of days spent in Taylor–Ochs Pond, Ohio, for individually marked female (R2 ¼ 0.57, P ¼ 0.001; y ¼ 1.25x þ 6.76) and male (R2 ¼ 0.18, P ¼ 0.001, y ¼ 0.29x þ 3.39) Ambŋstoma maculatum sampled from 2005 to 2014.
F. 1 in A Long-term Demographic Study of a Spotted Salamander (Ambŋstoma maculatum) Population in Central Ohio
F. 1.—Numbers of (a) breeding Ambŋstoma maculatum adults (R2 ¼ IG 0.46, P ¼ 0.03), (b) split by sex (females, R2 ¼ 0.02, P ¼ 0.67; males, R2 ¼ 0.68, P ¼ 0.003), and (c) counts of breeding females plotted alongside egg mass counts and numbers of emerging juveniles from 2005 to 2014 in Taylor–Ochs Pond, Ohio. Numbers near the bottom of (b) reflect sex ratios (male:female), and numbers near the bottom of (c) reflect recruitment rates (emerging juveniles per breeding female) for each year. Significant negative linear relationships of overall breeding adults (a) and breeding males (b) over time are represented by the equations y ¼ 46.1x þ 93246.0 and y ¼ 41.6x þ 84148.9, respectively.
FIG. 2 in A Long-term Demographic Study of a Spotted Salamander (Ambŋstoma maculatum) Population in Central Ohio
FIG. 2.—Mean values (±1 SE) for mass (a) and snout–vent length (SVL, b) of inbound female and male Ambŋstoma maculatum sampled from 2005 to 2014 in Taylor–Ochs Pond, Ohio. See Table 3 for the sample size contributing to each depicted value. In all years, for both body-size indicators, females were larger than males (P <0.05). For simplicity, only differences among years (sexes combined) are reflected by different letter(s) above each pair of bars.
Long-term Maintenance Benefits of a Pulmonary Rehabilitation Program Using a Mobile Digital Solution: a Prospective, Randomized, Controlled, Multicenter Study in a Population of COPD Patients
ClinicalTrials.gov study NCT04550741. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Population collapse of habitat-forming species in the Mediterranean: a long-term study of gorgonian populations affected by recurrent marine heatwaves
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Data from: Statin use and cognitive function: population-based observational study with long-term follow-up
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Data from: In a long-term experimental demography study, excluding ungulates reversed invader’s explosive population growth rate and restored natives
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Data from: Gauging the purported costs of public data archiving for long-term population studies
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A Path to Prevention of Elder Abuse in Long-term Care. General Population Prevalence Study
ClinicalTrials.gov study NCT06786065. IPD Sharing: YES. Countries: 1. Publications: 0.
FIG. 4 in A Long-term Demographic Study of a Spotted Salamander (Ambŋstoma maculatum) Population in Central Ohio
FIG. 4.—Mean values (±1 SE) for mass of juvenile Ambŋstoma maculatum sampled from Taylor–Ochs Pond, Ohio. Sample sizes are 99 (2005), 73 (2006), 301 (2008), 19 (2010), and 32 (2011). Different letters signify statistical differences between values (P <0.05).
Description of Joint Population and Assessment of Impact on Health Status of Orencia in Patients With Rheumatoid Arthritis in France. A Database Analysis Based on SFR's ORA Long-term Cohort Study
ClinicalTrials.gov study NCT01694693. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Study to Evalutate Long-term Immunity of Hantavax in High Risk Population of HFRS
ClinicalTrials.gov study NCT02360514. IPD Sharing: Not stated. Countries: 0. Publications: 0.
ScienceDex guides
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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.