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170 results for “Heat tolerance”
Oxygen supply limits the heat tolerance of avian embryos
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Data from: Heat shock protein expression enhances heat tolerance of reptile and bird embryos
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Data from : Environmental predictability drives adaptive within- and transgenerational plasticity of heat tolerance across life stages and climatic regions
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Slow heating rates increase thermal tolerance and alter mRNA HSP expression in juvenile white sturgeon (Acipenser transmontanus)
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Genome-wide association mapping for component traits of drought and heat tolerance in wheat
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Genomic data from: Are you ready for the heat? Phenotypic plasticity vs adaptation of heat tolerance in three-spined stickleback
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Arboreality drives heat tolerance while elevation drives cold tolerance in tropical rainforest ants
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Heat tolerances of temperate and tropical birds and their implications for susceptibility to climate warming
<ol> <li>Characterizing heat tolerance is critical for predicting an organism's vulnerability to climate warming. Recent studies of ectotherms report that impacts of climate warming are expected to be greater in the tropics, where ectotherms tend to have lower heat tolerances and experience air temperatures closer to their heat tolerance limits than their temperate counterparts. However, similar comparisons of heat tolerance are largely lacking for endotherms, and it remains an open question whether climate warming will also disproportionately affect tropical endotherms.</li> <li>To address this empirical gap, we measured thermoregulatory responses to acute heat stress in 81 bird species (23 temperate, 58 tropical), assembling the largest comparative dataset of endothermic heat tolerances to date.</li> <li>After controlling for body mass and experimental chamber humidity, temperate species had significantly higher heat tolerance limits (ΔHTL = 2.2 °C; 45.2 vs. 40 °C) and upper critical temperatures (ΔUCT = 1.1 °C; 38.7 vs. 37.6 °C) on average than tropical species. Importantly, however, these differences do not appear to impact vulnerability to climate warming, as neither thermal safety margins (i.e. the difference between UCT and maximum air temperature, T<sub>max</sub>) nor warming tolerances ( the difference between HTL and T<sub>max</sub>) differed between temperate and tropical species. We also observed substantial variation in heat tolerance among avian orders, with pigeons and doves (Columbiformes) being among the most heat tolerant species in our dataset.</li> <li>Overall, our results suggest that, from a physiological standpoint, tropical birds may not be systematically more susceptible to climate warming than temperate birds, contrasting previous studies of ectotherms. Furthermore, we show that certain avian clades may be more resilient to warming irrespective of local climate. However, because we only sampled at one temperate and one tropical site, we caution that replication from other habitats and localities are needed to evaluate the generality of our findings.</li> </ol>
Data from: A positive genetic correlation between hypoxia tolerance and heat tolerance supports a controversial theory of heat stress
We used quantitative genetics to test a controversial theory of heat stress, in which animals overheat when the demand for oxygen exceeds the supply. This theory, referred to as oxygen- and capacity-limited thermal tolerance, predicts a positive genetic correlation between hypoxia tolerance and heat tolerance. We demonstrate the first genetic correlation of this kind in a model organism, Drosophila melanogaster. Genotypes more likely to fly under hypoxic stress (12% O2) were also more likely to fly under heat stress (39°C). This finding prompts new questions about mechanisms and limits of adaptation to heat stress.
Limitations of plant stress tolerance upon heat and CO2 exposure in black ploplar: Assessment of photosynthetic traits and stress volatile emissions
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Dataset used in the paper: Photosynthetic heat tolerance in plants with different foliar water uptake strategies
<p>Dataset used in the paper "Photosynthetic heat tolerance in plants with different foliar water uptake strategies".</p>
Heat hardening improves thermal tolerance in abalone, without the trade-offs associated with exposure to chronic elevated temperature
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Evolution of sex-specific heat stress tolerance and larval Hsp70 expression in populations of Drosophila melanogaster adapted to larval crowding
<p class="BodyA">The ability to tolerate temperature stress is an important component of adult fitness. In holometabolous insects like <i>Drosophila melanogaster,</i> adult stress resistance can be affected by growth conditions experienced during the larval stages. While evolution under crowded larval conditions is known to lead to the correlated evolution of many adult traits, its consequences on adult heat stress tolerance have not been investigated. Therefore, in the present study, we assessed the adult heat stress tolerance in populations of <i>D.</i><i> </i><i>melanogaster</i> adapted to a stressful larval crowding environment. We used replicate populations of <i>D.</i><i> </i><i>melanogaster</i>, selected for adaptation to larval crowding stress (MCUs), for more than 230 generations, and their respective controls (MBs). Larvae from selected and control populations were grown under crowded and uncrowded conditions and their adult heat shock resistance at two different temperatures was measured. Further, we compared Hsp70 expression in crowded and uncrowded larvae of both populations and also measured the Hsp70 expression after a mild-heat treatment in adults of selected and control populations. Our results showed that adaptation to larval crowding leads to the evolution of Hsp70 gene expression in larval stages and improves adult heat-stress tolerance ability in males, but not in females. </p>
Supporting data for: Heat-evolved algal symbionts enhance bleaching tolerance of adult corals without trade-off against growth
<p>Photosymbiont-enhanced coral thermotolerance</p>
Heat Therapy to Reduce Pain and Improve Walking Tolerance
ClinicalTrials.gov study NCT03435835. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Linear reaction norms of thermal limits in Drosophila: predictable plasticity in cold but not in heat tolerance
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Data from: How to assess Drosophila heat tolerance: unifying static and dynamic tolerance assays to predict heat distribution limits
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Evolution of sex-specific heat stress tolerance and larval Hsp70 expression in populations of Drosophila melanogaster adapted to larval crowding
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Heat tolerances of temperate and tropical birds and their implications for susceptibility to climate warming
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Data from: Basal cold but not heat tolerance constrains plasticity among Drosophila species (Diptera: Drosophilidae)
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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)
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.