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66 results for “Thermal acclimation”
Data from: Regulation of thermal acclimation varies between generations of the short-lived mosquitofish (Gambusia holbrooki) that developed in different environmental conditions
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Data from: Testing the thermal limits: non-linear reaction norms drive disparate thermal acclimation responses in Drosophila melanogaster
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Data from: Ontogenetic reduction in thermal tolerance is not alleviated by earlier developmental acclimation in Rana temporaria
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Apparent thermal acclimation of soil heterotrophic respiration mainly mediated by substrate availability
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Breaking Free from Thermodynamic Constraints: Thermal Acclimation and Metabolic Compensation in a freshwater zooplankton species
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Data from: Floral reflectance, color, and thermoregulation: what really explains geographic variation in thermal acclimation ability of ectotherms?
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Data from: Effects of warming rate, acclimation temperature and ontogeny on the critical thermal maximum of temperate marine fish larvae
Most of the thermal tolerance studies on fish have been performed on juveniles and adults, whereas limited information is available for larvae, a stage which may have a particularly narrow range in tolerable temperatures. Moreover, previous studies on thermal limits for marine and freshwater fish larvae (53 studies reviewed here) applied a wide range of methodologies (e.g. the static or dynamic method, different exposure times), making it challenging to compare across taxa. We measured the Critical Thermal Maximum (CTmax) of Atlantic herring (Clupea harengus) and European seabass (Dicentrarchus labrax) larvae using the dynamic method (ramping assay) and assessed the effect of warming rate (0.5 to 9°C h-1) and acclimation temperature. The larvae of herring had a lower CTmax (lowest and highest values among 222 individual larvae, 13.1 – 27.0 °C) than seabass (lowest and highest values among 90 individual larvae, 24.2 – 34.3 °C). At faster rates of warming, larval CTmax significantly increased in herring, whereas no effect was observed in seabass. Higher acclimation temperatures led to higher CTmax in herring larvae (2.7 ± 0.9°C increase) with increases more pronounced at lower warming rates. Pre-trials testing the effects of warming rate are recommended. Our results for these two temperate marine fishes suggest using a warming rate of 3 - 6 °C h-1: CTmax is highest in trials of relatively short duration, as has been suggested for larger fish. Additionally, time-dependent thermal tolerance was observed in herring larvae, where a difference of up to 8°C was observed in the upper thermal limit between a 0.5- or 24-h exposure to temperatures >18°C. The present study constitutes a first step towards a standard protocol for measuring thermal tolerance in larval fish.
Data from: Thermal acclimation and adaptation across populations in a broadly distributed soil arthropod
The relative contributions of phenotypic plasticity and adaptive evolution to the respons-es of species to climate change are poorly understood. It has been suggested that some species or populations will have to rely on their ability to adjust their phenotype rather than on adaptation through evolutionary adaptation. 2. We test the extent of intra- and inter-population patterns of acclimation and genetic varia-tion in multiple traits directly related to environmental tolerance limits in the broadly dis-tributed soil dwelling collembolan Orchesella cincta. 3. Genetic variation in both dynamic and static assays of thermal tolerance was present across seven populations spanning 14° of latitude and both heat and cold tolerance were significantly correlated with latitude. Short term heat and cold acclimation significantly increased thermal tolerance limits across all populations and there was local adaptation for acclimation responses for some traits. Furthermore, results showed large acclimatiza-tion responses in the field within populations for cold tolerance throughout a 13-month period and smaller acclimatization responses for heat tolerance. Acclimatization respons-es were correlated with microhabitat temperature at the site of collection suggesting that plastic responses are highly dynamic and allow organisms to cope with changes in tem-perature. 4. Our findings demonstrate small differences in upper and lower thermal tolerance limits across populations, but substantial local acclimatization effects dictated by microhabitat temperatures, and also highlight the limited scope and strong trade-offs to respond to in-creasing temperatures. These findings demonstrate the need for incorporating infor-mation on species' ability to respond to environmental change using both laboratory and field approaches into climate change models.
Data from: Host and parasite thermal acclimation responses depend on the stage of infection
1. Global climate change is expected to alter patterns of temperature variability, which could influence species interactions including parasitism. Species interactions can be difficult to predict in variable-temperature environments because of thermal acclimation responses, i.e. physiological changes that allow organisms to adjust to a new temperature following a temperature shift. 2. The goal of this study was to determine how thermal acclimation influences host resistance to infection and to test for parasite acclimation responses, which might differ from host responses in important ways. 3. We tested predictions of three, non-mutually exclusive hypotheses regarding thermal acclimation effects on infection of green frog tadpoles (Lithobates clamitans) by the trematode parasite Ribeiroia ondatrae with fully replicated controlled-temperature experiments. Trematodes or tadpoles were independently acclimated to a range of 'acclimation temperatures' prior to shifting them to new 'performance temperatures' for experimental infections. 4. Trematodes that were acclimated to intermediate temperatures (19–22 °C) had greater encystment success across temperatures than either cold- or warm-acclimated trematodes. However, host acclimation responses varied depending on the stage of infection (encystment vs. clearance): warm- (22–28 °C) and cold-acclimated (13–19 °C) tadpoles had fewer parasites encyst at warm and cold performance temperatures, respectively, whereas intermediate-acclimated tadpoles (19–25 °C) cleared the greatest proportion of parasites in the week following exposure. 5. These results suggest that tadpoles use different immune mechanisms to resist different stages of trematode infection, and that each set of mechanisms has unique responses to temperature variability. Our results highlight the importance of considering thermal responses of both parasites and hosts when predicting disease patterns in variable-temperature environments.
Transcriptional response to long-term thermal acclimation in an ecologically relevant marine cyanobacterium of the ubiquitous Synechococcus clade II
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Fig. 6 in Expression profile of two HSP70 chaperone proteins in response to extreme thermal acclimation in Xestia c-nigrum (Lepidoptera: Noctuidae)
Fig. 6. Xc-HSP70 mRNA expression profiles induced by cold (−7 to 5 °C) and heat (37 to 47 °C) in 2nd, 3rd, 4th, 5th, and 6th instars and pupae of Xestia cnigrum. The relative quantities indicate the levels of the HSP70 gene transcript normalized against transcript levels of β-actin as an internal standard and compared with the transcript levels of the untreated control at 25 °C. An asterisk indicates a significant difference between the control and heat shock conditions (significant, * P <0.05). The data are denoted as the mean ± SEM (error bar).
Data for Sentis et al. Short-term thermal acclimation modulates predator functional response
<p>Data from the study Short-term thermal acclimation modulates predator functional response by Arnaud Sentis, Lukas Veselý, Marek Let, Martin Musil, Viktoriia Malinovska and Antonín Kouba. The data represent the number of prey eaten for different initial prey densities, temperatures and acclimation times.</p>
Thermal tolerance and routine oxygen consumption of convict cichlid, Archocentrus nigrofasciatus, acclimated to constant temperatures (20 °C and 30 °C) and a daily temperature cycle (20 °C → 30 °C)
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Data from: Thermal acclimation and adaptation across populations in a broadly distributed soil arthropod
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Data from: Host and parasite thermal acclimation responses depend on the stage of infection
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Data from: How temperature shifts affect parasite production: testing the roles of thermal stress and acclimation
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Data from: Thermal adaptation and acclimation of ectotherms from differing aquatic climates
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Data for Sentis et al. Short-term thermal acclimation modulates predator functional response
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Data from: Effects of warming rate, acclimation temperature and ontogeny on the critical thermal maximum of temperate marine fish larvae
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Functional genomics of acclimation and adaptation in response to thermal stress in Daphnia
GEO Series GSE53692. Daphnia pulex. 36 samples. Type: Expression profiling by array.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.