Find research datasets worth reusing

opencc-zeroMay 2022View details →

Higher intelligence is genetically linked with longevity

Epidemiological studies in different populations, in different countries, and in different epochs consistently showed that high intelligence is positively correlated with longevity. Despite the definitive association, the reason of the linkage between higher intelligence and longevity has remained unknown. Here, we show by using Drosophila melanogaster that both higher intelligence and longevity are genetically linked. The high intelligent D. melanogaster (INT) lived longer than non-intelligent flies (NINT), 26.40% and 21.35% in male and female, respectively. The bidirectional selective breeding based on intelligence extended lifespans gradually generation by generation in INT breeding and reverse in NINT breeding. The INT of F12 generation lived longer than NINT of F12 generation, 63.91% for male and 67.88% for female, as a result from slower aging. Whole-genome analysis showed that the genetic linkage of higher intelligence with longevity was determined by the genes of the pathways of ribosome, autophagy, and genome stability.

opencc-zeroJun 2022View details →

Data from: Passive acoustic monitoring provides reliable under-estimates of population size and longevity in wild Savannah Sparrows

Many breeding birds produce conspicuous sounds, providing tremendous opportunities to study free-living birds through acoustic recordings. Traditional methods for studying population size and demographic features depend on labour-intensive field research. Passive acoustic monitoring provides an alternative method for quantifying population size and demographic parameters, but this approach requires careful validation. To determine the accuracy of passive acoustic monitoring for estimating population size and demographic parameters, we used autonomous recorders to sample an island-living population of Savannah Sparrows (Passerculus sandwichensis) over a six-year period. Using the individually distinctive songs of males, we estimated male population size as the number of unique songs detected in the recordings. We analyzed songs across six years to estimate birth year, death year, and longevity. We then compared the estimates to field data in a blind analysis. Estimates of male population size through passive acoustic monitoring were, on average, 72% of the true male population size, with higher accuracy in lower-density years. Estimates of demographic rates were lower than true values by 29% for birth year, 23% for death year, and 29% for longevity. This is the first investigation to estimate longevity with passive acoustic monitoring, and adds to a growing number of studies that have used passive acoustic monitoring to estimate population size. Although passive acoustic monitoring under-estimated true population parametersfeatures, likely due to the high similarity among many male songs, our findings suggest that autonomous recorders can provide reliable estimates of population size and demographic characteristicslongevity in a wild songbird.

opencc-zeroAug 2022View details →

Diverse aging rates in ectothermic tetrapods provide insights for the evolution of aging and longevity

Comparative studies of mortality in the wild are necessary to understand the evolution of aging, yet ectothermic tetrapods are under-represented in this comparative landscape despite their suitability for testing evolutionary hypotheses. We present a study of aging rates and longevity across wild tetrapod ectotherms, utilizing data from 107 populations (77 species) of non-avian reptiles and amphibians. We test hypotheses of how thermoregulatory mode, temperature, protective phenotypes, and pace of life history contribute to demographic aging. Controlling for phylogeny and body size, ectotherms display a higher diversity of aging rates than endotherms and include phylogenetically widespread evidence of negligible aging. Protective phenotypes and life-history strategies further explain macroevolutionary patterns of aging. By adding ectothermic tetrapods, our comparative analyses enhance our understanding of the evolution of aging.

opencc-by-4.0Sep 2022View details →

Table S1. Mean longevity of gamma-sterilized male Ae. aegypti post-treatment by density, temperature, and duration factors

This Table descibe mean longevity of gamma-sterilized male Ae. aegypti post-treatment by density, temperature, and duration factors.

opencc-zeroSep 2022View details →

Telomere length and rate of change, as they relate to body size and longevity

Telomeres, the terminal repetitive DNA sequences at the ends of linear chromosomes, have strong associations with longevity in some major taxa. Longevity has been linked to rate of decline in telomere length in birds and mammals, and absolute telomere length seems to be associated with body mass in mammals. Using a phylogenetic comparative method and 30 species of birds, we examined longevity (reflected by maximum lifespan), absolute telomere length, the rate of change in telomere length (TROC), and body mass (often strongly associated with longevity) to ascertain their degree of association. We divided lifespan into two life-history components, one reflected by body size (measured as body mass), and a component that was statistically independent of body mass. While both lifespan and body mass were strongly associated with a family tree of the species (viz., the phylogeny of the species), telomere measures were not. Telomere length was not significantly associated with longevity or body mass, or our measure of mass-independent lifespan. TROC, however, was strongly associated with mass-independent lifespan, but only to a much lesser degree at best with body mass-predicted lifespan. Our results supported an association of TROC and longevity, in particular longevity that was independent of body size and part of the pace-of-life syndrome of life histories.

opencc-zeroMay 2024View details →

Data from: Longevity of hymenopteran parasitoids in natural vs. agricultural habitats and implications for biological control

Agricultural habitats are frequently disturbed, and disturbances could have large effects on species in upper trophic levels such as hymenopteran parasitoids that are important for biological control. A strategy for conservation biological control is to provide a diversified agricultural landscape which increases the availability of resources such as sugar required by parasitoid biological control agents. Here, we ask whether parasitoids occurring in agriculture benefit from sugar resources more or less than parasitoids occurring in natural habitats surrounding agricultural fields. We collected parasitoids from agricultural alfalfa fields, field margins and natural prairies, and in the lab we randomly divided them into two treatments: half were given a constant supply of a sugar source to test their residual lifespan, and half were given neither sugar nor water to test their hardiness. Collected individuals were monitored daily and their day of death recorded. Parasitoids receiving a sugar source lived substantially longer than those without. Parasitoids collected in prairies lived longer than those from alfalfa fields in both the residual lifespan and hardiness treatments, with parasitoids from field margins being intermediate between them. Furthermore, the benefits of a sugar source to increase longevity was lower for parasitoids collected in agriculture than in natural habitats. This suggests that, even though parasitoid biological control agents benefit from sugar resources, their short lifespans make the benefit of sugar resources small compared to parasitoids that occur in natural habitats and have longer lifespans, and are adapted to consistent sugar sources.

opencc-by-4.0Jun 2024View details →

Edmonton Concrete Piles: Ensuring Durability and Longevity in Construction

Among the many construction uses for precast <a href="https://goo.gl/maps/DJzVVHVY4uKxB3Ez6">Edmonton Concrete Piles</a> are foundations, bridges, and marine structures. Their strength and versatility make them ideal for supporting heavy loads and structures in challenging soil conditions. New construction, as well as renovations and repairs to older structures, frequently make use of precast concrete piles. The ability to insert precast concrete piles into the ground with minimal interference to nearby regions makes them a desirable option for reinforcing and repairing foundations. Buildings designed by engineers can be supported by this type of piling. This is suitable in the majority of cases and applies to all types of businesses. The use of precast concrete piles is justified in situations where dry strata lie over soft sediment. Furthermore, they are effective even on soil that is polluted or otherwise unfriendly. They are adaptable to many different types of soil and can be shaped with the help of a pile cropper. This is especially true when reducing the items to the recommended pile cutoff level. One reason they have been around for so long is because they provide a cost-effective piling solution in this way. Reinforcing and supporting foundations are just two of the many applications that benefit from their robust character and ability to endure tough soil conditions. Due to their little effect on the surrounding areas during construction, precast concrete piles are an eco-friendly option. If builders are aware of the advantages of precast concrete piles, they may choose the finest foundation solution for their projects. The installation of concrete piles does not typically result in significant material waste or degradation, therefore they are highly advantageous. The question is, how can we put these mounds to good use? What keeps them from being anything other than stalwarts in their construction industries? Regardless, what makes them stand out from the crowd? For more information about our Concrete Piles service, contact Shield Foundation Repair now! <h2>Concrete and Ever Staff Precast Piles</h2> <ul> <li>A lot of industries still use precast concrete piles as their go-to. This becomes most apparent when building strong, long-lasting foundations. This is mainly due to its remarkable flexibility and resistance to corrosion.</li> <li>The fact that the piles may be linked to create longer ones makes it a versatile solution as well. One of the primary uses for these heaps is really in this context. The transportation of segmented piles opens up a world of possibilities for building projects of varying lengths.</li> <li>Do you want to know more about the finest cutting tools, pile cropping, or the foundation of concrete piles? Check out some of our other articles that will get your brain working right now. Another option is to contact us for additional information regarding our top-notch piling services.</li> </ul> <h2>Grasping the Benefits of Steel Sheet Pile Construction</h2> Steel sheet piles, thanks to their exceptional strength and resistance, are the ideal choice for foundations in soils that are difficult to work with. Their capacity to provide stability and resistance to lateral pressures is a key feature that makes them ideal for use in retaining walls, underground parking lots, and waterfront complexes, among other uses. Steel sheet piles last longer and need less upkeep due to their high corrosion resistance. Their versatility allows for efficient installation and removal, reducing environmental impact. Steel sheet piles have many advantages as a construction material, including durability, longevity, and structural performance. One major benefit of steel sheet piling is its extraordinary strength. Steel can withstand severe weather and heavy loads since it is strong and durable. This makes steel sheet piling an ideal material for retaining walls along roads railroads, or any other project that needs to keep a lot of dirt or water contained. Steel sheet piling has many positive uses in construction and also has environmental benefits. Steel sheet piling may be recycled and repurposed once its useful life is done because <a href="https://www.shieldfoundationrepair.ca/services/underpinning/">Edmonton Steel Piles</a> is a recyclable material. Because of this, steel sheet piling is a sustainable option for long-term projects like retaining walls. Shield Foundation Repair Inc. has been a leading supplier of steel sheet piles to the building industry on every continent for a long time. <h2>How are piles produced, and what kinds of piles are there?</h2> <ul> <li>For centuries—if not millennia—piling has been and is an essential part of the building industry. Transferring weight from an elevated structure to the ground is the primary function of piles.</li> <li>The definition and background of piling will be covered in the first part of this course. The article continues by explaining the two main kinds of pile foundations, the steps involved in building and installing piles, and the importance of using safe working platforms to support piling rigs.</li> <li>Property subsidence can be secured in an affordable and non-invasive manner with screw piling underpinning. This method stops any additional movement caused by factors such as groundwater loss, trees getting larger over time, or roots absorbing enormous amounts of water from the earth.</li> </ul> Using our screw piling foundation technology as an underpinning solution is a perfect match. The inability to employ a larger machine for excavation due to restricted access is a prime example of this. Then, to be safe, we'll pour concrete or use crushed debris to encircle the screw pile underpin cap and prevent the building from shifting any further. The current state of the ground following excavation will inform our engineer's decision on this matter. If you see any signs of building sinking or cracks, don't hesitate to contact Shield Foundation Repair Inc. Our professionals can remedy it quickly and affordably.

opencc-by-4.0Oct 2024View details →

Development of a High-Energy-Density Lithiated Silicon-Sulfur Full Cell with Enhanced Stability and Longevity

The raw materials for the draft: "Development of a High-Energy-Density Lithiated Silicon-Sulfur Full Cell with Enhanced Stability and Longevity"

opencc-by-4.0Jan 2023View details →

Convergent genomics of longevity in rockfishes highlights the genetics of human lifespan variation

Longevity is a defining, heritable trait that varies dramatically between species. To resolve the genetic regulation of this trait, we have mined genomic variation in rockfishes, which range in longevity from 11 to over 205 years, along with the sea robin as an outgroup. We used the phylomapping methodology to target sequencing and assembly to conserved, functional loci, defined using available genomic resources from well-characterized species. These annotations are in the gtf. For analysis of coding elements, assembled contigs were trimmed to just the exons. Exons were concatenated and analyzed to generate gene trees with IQTree, fixed to match the species tree. Additional details of these assembly methods are available at DOI: <a href="https://doi.org/10.1038/s41559-019-0914-2">10.1038/s41559-019-0914-2</a> and <a href="https://doi.org/10.1126/sciadv.add2743">DOI: 10.1126/sciadv.add2743</a>

opencc-zeroJan 2023View details →

Data: Large old trees increase growth under shifting climatic constraints: Aligning tree longevity and individual growth dynamics in primary mountain spruce forests

In a world of accelerating changes in environmental conditions driving tree growth, tradeoffs between tree growth rate and longevity could curtail the abundance of large, old trees (LOTs), with potentially dire consequences for biodiversity and carbon storage. However, the influence of tree-level tradeoffs on forest structure at landscape scales will also depend on disturbances, which shape tree size and age distribution, and on whether LOTs can benefit from improved growing conditions due to climate warming. We analyzed temporal and spatial variation in radial growth patterns from ~5000 Norway spruce (Picea abies (L.) H. Karst) live and dead trees from the Western Carpathian primary spruce forest stands. We applied mixed-linear modeling to quantify the importance of LOT growth histories and stand dynamics (i.e. competition and disturbance factors) on lifespan. Finally, we assessed regional synchronization in radial growth variability over the 20th century, and modelled the effects of stand dynamics and climate on LOTs recent growth trends. Tree age varied considerably among forest stands, implying an important role of disturbance as an age constraint. Slow juvenile growth and longer period of suppressed growth prolonged tree lifespan, while increasing disturbance severity and shorter time since last disturbance decreased it. The highest age was not achieved only by trees with continuous slow growth, but those with slow juvenile growth followed by subsequent growth releases. Growth trend analysis demonstrated an increase in absolute growth rates in response to climate warming, with late summer temperatures driving the recent growth trend. Contrary to our expectation that LOTs would eventually exhibit declining growth rates, the oldest LOTs (>400 years) continuously increase growth throughout their lives, indicating a high phenotypic plasticity of LOTs for increasing biomass, and a strong carbon sink role of primary spruce forests under rising temperatures, intensifying droughts, and increasing bark beetle outbreaks.

opencc-zeroFeb 2023View details →

Data for: Phylogenetically controlled life history trait meta-analysis in cetaceans reveals unexpected negative brain size and longevity correlation

The identification of patterns in trait evolution is essential to understand the interaction of evolutionary forces, and provides useful information for species management. Cetaceans are a phylogenetically well-resolved infraorder that exhibit distinct trait variation across behavioural, molecular and life history dimensions, yet few researchers have applied a meta-analytic or comparative approach to these traits. To understand cetacean trait evolution, we used a phylogenetic generalised least squares approach to examine the cognitive buffer hypothesis (CBH). A large brain should buffer individuals against environmental challenges through increasing survival rates, and a longer lifespan should buffer individuals against the cost of extended development for larger brains according to the CBH, leading to an expected positive correlation between brain size and lifespan. In contrast to this expectation, previously observed in taxa including primates, we found a negative correlation between brain size and lifespan in cetaceans. This suggests cetaceans experience selective pressures different from most other mammals in these traits but may be more similar to some social mammalian carnivores that display alloparenting. We also provide a comprehensive dataset to explore additional aspects of trait evolution but which would greatly benefit from studies on behavioural ecology across cetaceans and increased focus on data-deficient species.

opencc-zeroMay 2023View details →

Correlation between body size and longevity: new analysis and data covering six taxonomic classes of vertebrates

Large bodied species are known to live longer than small bodied species. However, it is less clear whether the positive correlation varies across taxa. In this short communication, we combine data entries from literature and databases on body mass and maximum life span for 3722 species covering taxonomic Classes Chondrichthyes, Teleostei, Amphibia, Reptilia, Aves, and Mammalia. We then analyze the log(maximum life span) – log(body mass) relationship using generalized linear model with nested random intercepts and slopes for Class/Order/Family. Our analyses generally demonstrate the positive longevity – body mass relationship but also reveal that slopes and intercepts differ slightly among all Classes except Reptilia and Amphibia. Highest slopes can be found in Classes Aves and Chondrichthyes. Differences between the smallest and largest Family-level slopes was more than threefold. While these preliminary analyses provide a brief overview of body size – longevity relationships across taxa, the dataset collated in the present study could serve as a start point for in-depth phylogenetic analyses to uncover complex pathways through which body size and its correlates might have evolved.

opencc-zeroMay 2023View details →

Habitat preferences and functional traits drive longevity in Himalayan high-mountain plants

Plant lifespan has important evolutionary, physiological, and ecological implications related to population persistence, community stability, and resilience to ongoing environmental change impacts. Although biologists have long been puzzled over the extraordinary variation in plant lifespan and its causes, our understanding of interspecific variability in plant lifespan and the key internal and external factors influencing longevity remains limited. Here, we demonstrate the concurrent impacts of environmental, morphological, physiological, and anatomical constraints on interspecific variation in longevity among >300 vascular dicot plant species naturally occurring at an elevation gradient (2800-6150 m) in the western Himalayas. First, we show that plant longevity (ranging from 1 to 100 years) is largely related to species' habitat preferences. Ecologically stressful habitats such as alpine and subnival host long-lived species, while productive ruderal and wetland habitats contain a higher proportion of shorter-lived species. Second, longevity is influenced by growth form with monocarpic forbs having the shortest lifespan and woody shrubs having the highest. Small-statured cushion plants with compact canopies and deep roots, most found on cold and infertile alpine and subnival soils, had a higher chance of achieving longevity. Third, plant traits reflecting plant adaptations to stress and disturbance affect interspecific differences in plant longevity. We show that longevity and growth are negatively correlated. Slow-growing species are those that have a higher chance of reaching a high age. Finally, higher longevity was associated with high leaf carbon and phosphorus, low root phosphorus and nitrogen, and with large bark-xylem ratio. Our findings suggest that plant longevity in high elevation is intricately determined by a combination of habitat preferences and growth form, as well as the plant growth rate and physiological processes.

opencc-by-4.0Nov 2019View details →

Figure 1 in A PROTOCOL FOR RECORDING BEHAVIORAL ACTIVITY DURING LONGEVITY STUDIES OF ADULT CHIRONOMIDAE Abstract

Figure 1. Photograph of cardboard box used to organize numbered vials during longevity studies.

opencc-by-4.0Sep 2023View details →

Dataset underlying the study "Changes in longevity, parasitization rate and development time of the whitefly parasitoid Encarsia formosa under future climate conditions"

This dataset is underlying the scientific publication titled "Changes in longevity, parasitization rate and development time of the whitefly parasitoid Encarsia formosa under future climate conditions", published in the <a href="https://www.sciencedirect.com/journal/biological-control">Biological Control </a>journal.  The first section of the dataset provides the meterological parameters used to drive climate chambers for the experiments conducted by LIST and UNICT researchers. The second section of the dataset provides a graphical representation, including the relevant metadata, of the survival rate of adult Encarsia formosa (a whitefly biocontrol agent) under various climate conditions. The third and final section of the dataset includes an overview of the whitefly parasitization rate of Encarsia formosa according to the different parameters of the experiments undertaken by the LIST and UNICT scientists. The provided figures and tables in the dataset are further discussed and interpreted in detail, as well as their subsequent results, in the scientific publication. This research was conducted within the VIRTIGATION project, which is part of the EU Open Research Data pilot. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 101000570.

controlledIPD-YESFeb 2026View details →

Digital Health and Exercise for Autonomous Longevity Program

ClinicalTrials.gov study NCT06722976. IPD Sharing: YES. Countries: 1. Publications: 3.

restrictedIPD-UNDECIDEDFeb 2026View details →

Expression of Longevity Genes in Response to Extended Fasting

ClinicalTrials.gov study NCT01059760. IPD Sharing: Not stated. Countries: 1. Publications: 4.

closedIPD-NOFeb 2026View details →

Improving Resilience and Longevity for Workers Through Exercise

ClinicalTrials.gov study NCT03050320. IPD Sharing: NO. Countries: 1. Publications: 1.

closedIPD-NOFeb 2026View details →

Longevity of Multi-Slitted Catheter With Lantern Technology

ClinicalTrials.gov study NCT03819634. IPD Sharing: NO. Countries: 1. Publications: 1.