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436 results for “longevity”
Figure 2 in LONGEVITIES OF ADULT CHIRONOMIDAE (DIPTERA) FROM TWO STREAMS IN ICELAND Abstract
Figure 2. Comparison of Diamesa longevity from stream IS7 between treatments, based only on individuals (males and females together) that died during the incubation period. Results are shown for 12 individuals in the 6°C treatment and 29 in the 20°C treatment. The black bars indicate median longevity of adults that died.
Figure 1 in LONGEVITIES OF ADULT CHIRONOMIDAE (DIPTERA) FROM TWO STREAMS IN ICELAND Abstract
Figure 1. Map of research streams IS7 and IS8 within the Hengladalir valleys of the Hengill alpine geothermal area, Iceland (inset) (adapted from Hannesdottir et al. 2013).
Figure 5 in A PROTOCOL FOR RECORDING BEHAVIORAL ACTIVITY DURING LONGEVITY STUDIES OF ADULT CHIRONOMIDAE Abstract
Figure 5. Percent of behaviors recorded by adult flies collected from Valley Creek during longevity experi- ments with adults incubated at different temperatures.
Figure 2 in A PROTOCOL FOR RECORDING BEHAVIORAL ACTIVITY DURING LONGEVITY STUDIES OF ADULT CHIRONOMIDAE Abstract
Figure 2. Example of data sheet and daily records of behavior for a male and female collected from on snow, 17 Febru- ary 2019, adjacent to Hay Creek, Goodhue County, MN. The female oviposited in the vial on Day 4, post collection.
Figure 4 in A PROTOCOL FOR RECORDING BEHAVIORAL ACTIVITY DURING LONGEVITY STUDIES OF ADULT CHIRONOMIDAE Abstract
Figure 4. Percent of behaviors recorded by adult flies collected from Trout Brook during longevity experi- ments with adults incubated at different temperatures.
Figure 3 in A PROTOCOL FOR RECORDING BEHAVIORAL ACTIVITY DURING LONGEVITY STUDIES OF ADULT CHIRONOMIDAE Abstract
Figure 3. Percent of behaviors recorded by adult flies collected from Hay Creek during longevity experiments with adults incubated at different temperatures.
Data from: Coevolution of longevity and female germline maintenance
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Data and code from: Longevity hinders evolutionary rescue through slower growth but not necessarily slower adaptation
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DNA methylation-based age prediction and sex-specific epigenetic aging in a lizard with female-biased longevity
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Dynamic self-organization in fire ant rafts underpins collective longevity and threat responsiveness
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Data from: Growth and longevity of the endangered freshwater pearl mussel (Margaritifera margaritifera): Implications for conservation and management
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The more the better: Fatty acids are predictive markers of honey bee, Apis mellifera, worker longevity
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Feeding with plant powders increases longevity and body weight of Western honeybee workers (Apis mellifera)
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Effects of mycotoxin treatment on fly survival, development time, thorax length, fecundity, and longevity in four mycophagous Drosophila species
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Data from: Longevity, body dimension and reproductive mode drive differences in aquatic versus terrestrial life history strategies
<p>1. Aquatic and terrestrial environments display stark differences in key environmental factors and phylogenetic composition but their consequences for the evolution of species' life history strategies remain poorly understood.</p> <p>2. Here, we examine whether and how life history strategies vary between terrestrial and aquatic species. We use demographic information for 685 terrestrial and 122 aquatic animal and plant species to estimate key life history traits. We then use phylogenetically corrected least squares regression to explore potential differences in trade-offs between life history traits between both environments. We contrast life history strategies of aquatic vs. terrestrial species in a principal component analysis while accounting for body dimensions and phylogenetic relationships.</p> <p>3. Our results show that the same trade-offs structure terrestrial and aquatic life histories, resulting in two dominant axes of variation that describe species' pace-of-life and reproductive strategies. Terrestrial plants display a large diversity of strategies, including the longest-lived species in this study. Aquatic animals exhibit higher reproductive frequency than terrestrial animals. When correcting for body size, mobile and sessile terrestrial organisms show slower paces of life than aquatic ones.</p> <p>4. Aquatic and terrestrial species are ruled by the same life history trade-offs, but have evolved different strategies, likely due to distinct environmental selective pressures. Such contrasting life history strategies have important consequences for the conservation and management of aquatic and terrestrial species.</p>
Data from: Larval diet and temperature alter mosquito immunity and development: using body size and developmental traits to track carry-over effects on longevity
<p><span><strong>Background</strong>:</span><span> Estimating arbovirus transmission potential requires a mechanistic understanding of how environmental factors influence the expression of adult mosquito traits. While preimaginal exposure to environmental factors can have profound effects on adult traits, tracking and predicting these effects remains challenging. </span></p> <p><span><strong>Methods</strong>:</span><span> Using <em>Aedes albopictus</em> and a structural equation modelling approach, we explored how larval nutrition and temperature jointly affect development rate and success, body size, and whether these metrics capture carry-over effects on adult longevity. Additionally, we investigated how larval diet and temperature affect the baseline expression of ten immune genes. </span></p> <p><span><strong>Results</strong>:</span><span> We found that larval development </span><span>success</span><span> was primarily determined by diet, while temperature and diet both affected development rate, pupal wet weight, and wing length. Effects of diet on both morphometric measures and their relationships to adult longevity were asymmetrical, with wing length having a positive association and pupal weight a negative association. Larval diet indirectly affected adult longevity, and the time to pupation was negatively correlated with longevity. </span><span>The</span><span> expression of </span><span>eight </span><span>immune genes from Toll, </span><span>JAK-STAT, and Imd pathways </span><span>was enhanced in mosquitoes with higher nutrition. </span></p> <p><span><strong>Conclusions</strong>:</span><span> Our results highlight deficiencies from using a single body size measure to capture carry-over effects on adult traits. Further studies of larval development rate under varying environmental conditions and its potential for tracking carry-over effects on vectorial capacity are warranted. </span></p>
Dataset for the Paper "Longevity of Artifacts in Leading Parallel and Distributed Systems Conferences: a Review of the State of the Practice in 2023"
<p>Dataset used for the paper "Longevity of Artifacts in Leading Parallel and Distributed Systems Conferences: a Review of the State of the Practice in 2023" submitted at ACM REP'24.</p> <p>The associated analysis scripts are available on Software-Heritage: https://archive.softwareheritage.org/swh:1:dir:3904795a49327b1e9b7ef1a8aff995b1f94ae6fb;origin=https://github.com/GuilloteauQ/artefact-lifetime;visit=swh:1:snp:9adc667f9fefcb6783df076520ef357231030ad4;anchor=swh:1:rev:ad4d19abb5da12fd6df708bc13e444d834c85dfa</p>
Inverse Lansing effect: Maternal age and provisioning affecting daughters' longevity and male offspring production
<p>Maternal age effects on offspring life history are known in a variety of organisms, with offspring of older mothers typically having lower life expectancy (Lansing Effect). However there is no consensus on generality and mechanisms of this pattern. We tested predictions of Lansing Effect in several <em>Daphnia magna</em> clones and observed clone-specific magnitude and even direction of the maternal age effect on offspring longevity. We also report ambidirectional, genotype-specific effects of maternal age on daughters' propensity to produce male offspring. Focusing on two clones with contrasting life-histories, we demonstrate that maternal age effects can be explained by lipid provisioning of embryos by mothers of different ages. Individuals from a single-generation maternal age reversal treatment showed intermediate lifespan and intermediate lipid content at birth. In the clone characterized by the "inverse Lansing Effect" neonates produced by older mothers showed higher mitochondrial membrane potential in neural tissues than their counterparts born to younger mothers. We conclude that an "inverse Lansing Effect" is possible, and hypothesize that it may be caused by age-specific maternal lipid provisioning creating a calorically restricted environment during embryonic development, which, in turn reduces fecundity and increases lifespan.</p>
Data from: Exoskeleton ageing and its relation to longevity and fecundity in female Australian Leaf Insects (Phyllium monteithi)
<p>Senescence is a decline in reproduction and survival rate with advancing age resulting from deterioration of somatic tissues and systems throughout the body. Age-related somatic changes (somatic ageing) have been studied extensively in vertebrates but are less well known in other animals, including insects. Since adult insects have very limited ability to repair their exoskeleton, somatic ageing could involve deterioration and discolouration of the cuticle. We investigated age-related changes in wing pigmentation and abdominal cuticle necrosis in females of the Australian leaf insect <em>Phyllium monteithi</em>. Adult females varied markedly in the extent and pattern of pigmentation on their bodies, and we found that pigment spots on the forewings increased in size with age in most individuals. As females aged, most individuals also exhibited increasing levels of abdominal cuticle necrosis, resulting in the loss of abdominal cuticle along the margin of the abdomen. Neither the extent of pigmentation nor cuticle loss were clearly associated with reduced fecundity or longevity in the protected laboratory environment, but it remains unknown whether these age-related changes have functional implications in the wild. Our results show that the <em>P. monteithi</em> exoskeleton undergoes complex changes with age, with potential implications for functional traits and fitness.</p>
Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis)
<p>Studies of life-history variation across a species range are crucial for ecological understanding and successful conservation. Here, we examined the growth and age of Wels catfish (Silurus glanis) in Sweden, which represent the northernmost populations in Europe. A total of 1183 individuals were captured, marked and released between 2006 and 2020. Mark-recapture data from 162 individuals (size range: 13–195 cm) were used to estimate von Bertalanffy growth curve parameters which revealed very slow growth rates compared to catfish within the core distribution area (central Europe). The fitted von Bertalanffy growth curve predicted a 150 cm catfish to be around 40 years old, while the largest recaptured individual (length 195 cm) was estimated to be 70 (95% CI 50–112) years old. This was substantially older than the previously documented maximum age of a catfish. The weight at length relationships in these northern peripheral populations were similar to those documented for catfish in central Europe indicating that resources did not constrain growth. This indicates that the slow growth and exceptional high age in the northern catfish populations are the result of lower temperatures and/or local adaptations.</p>
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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)
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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.