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91 results for “Environmental temperature”
Genome-wide DNA methylation patterns harbor signatures of hatchling sex and past incubation temperature in a species with environmental sex determination
<p>Conservation of thermally sensitive species depends on monitoring organismal and population-level responses to environmental change in real time. Epigenetic processes are increasingly recognized as key integrators of environmental conditions into developmentally plastic responses, and attendant epigenomic datasets hold potential for revealing cryptic phenotypes relevant to conservation efforts. Here, we demonstrate the utility of genome-wide DNA methylation (DNAm) patterns in the face of climate change for a group of especially vulnerable species, those with temperature-dependent sex determination (TSD). Due to their reliance on thermal cues during development to determine sexual fate, contemporary shifts in temperature are predicted to skew offspring sex ratios and ultimately destabilize sensitive populations. Using reduced-representation bisulfite sequencing, we profiled the DNA methylome in blood cells of hatchling American alligator (<em>Alligator mississippiensis</em>), a TSD species lacking reliable markers of sexual dimorphism in early life-stages. We identified 120 sex-associated differentially methylated cytosines (DMCs; FDR < 0.1) in hatchlings incubated under a range of temperatures, as well as 707 unique temperature-associated DMCs. We further developed DNAm-based models capable of predicting hatchling sex with 100% accuracy (in 20 training samples and 4 test samples) and past incubation temperature with a mean absolute error of 1.2˚C (in 4 test samples) based on the methylation status of 20 and 24 loci, respectively. Though largely independent of epigenomic patterning occurring in the embryonic gonad during TSD, DNAm patterns in blood cells may serve as non-lethal markers of hatchling sex and past incubation conditions in conservation applications. These findings also raise intriguing questions regarding tissue-specific epigenomic patterning in the context of developmental plasticity. </p>
Derived environmental temperatures at Jezero crater from Air Temperature Sensors' measurements on the Perseverance rover.
<p><strong>Material from Version 2</strong> extends derived Air Temperature Sensor data to the first 700 sols of the Mars 2020 mission used in the analysis of <em>Munguira et al. (2024). "One Martian Year of Near-Surface Temperatures at Jezero from MEDA measurements on Mars2020/Perseverance". Journal of Geophysical Research: Planets. [in revision]. </em>We also include the tables needed to generate and reproduce the figures in the paper. Most importantly, the tables include the results from different analyses of temperatures through Fourier series and Reynolds averaging. </p>
Beyond cyanogenesis: Temperature gradients drive environmental adaptation in North American white clover (Trifolium repens L.)
<p>Species that repeatedly evolve phenotypic clines across environmental gradients have been highlighted as ideal systems for characterizing the genomic basis of local environmental adaptation. However, few studies have assessed the importance of observed phenotypic clines for local adaptation: conspicuous traits that vary clinally may not necessarily be the most critical in determining local fitness. The present study was designed to fill this gap, using a plant species characterized by repeatedly-evolved adaptive phenotypic clines. White clover is naturally polymorphic for its chemical defense cyanogenesis (HCN release with tissue damage); climate-associated cyanogenesis clines have evolved throughout its native and introduced range worldwide. We performed landscape genomic analyses on 415 wild genotypes from 43 locations spanning much of the North American species range to assess the relative importance of cyanogenesis loci vs. other genomic factors in local climatic adaptation. We find clear evidence of local adaptation, with temperature-related climatic variables best describing genome-wide differentiation between sampling locations. The same climatic variables are also strongly correlated with cyanogenesis frequencies and gene copy number variations (CNVs) at cyanogenesis loci. However, landscape genomic analyses indicate no significant contribution of cyanogenesis loci to local adaptation. Instead, several genomic regions containing promising candidate genes for plant response to seasonal cues are identified — some of which are shared with previously-identified QTLs for locally-adaptive fitness traits in North American white clover. Our findings suggest that local adaptation in white clover is likely determined primarily by genes controlling the timing of growth and flowering in response to local seasonal cues. More generally, this work suggests that caution is warranted when considering the importance of conspicuous phenotypic clines as primary determinants of local adaptation.</p>
Dataset and R script - Non-linear transcriptomic responses to compounded environmental changes across temperature and resources in a pest beetle, Callosobruchus maculatus
<p>This dataset contains data and R script for analysis on life history and transcriptomic responses to single dimensional changes in resource (chickpea-27<span>°</span>C) and temperature (cowpea-35<span>°</span>C) and multi-dimensional environmental changes in resource and temperature (chickpea-35<span>°</span>C) in a pest beetle, <em>Callosobruchus maculatus</em> (control treatment = cowpea-27<span>°</span>C). Dataset contains life history data collected in laboratory conditions<em> </em>(tab 1), logFC data (RNA-sequencing; Novogene Co. Ltd.) for Spearman rank correlation tests between treatments (tabs 2-4), read count data (RNA-sequencing; Novogene Co. Ltd.) for differential expression analysis using edgeR (R1-5 = Four samples at cowpea-27<span>°</span>C; R7-12 = Four samples at cowpea-35<span>°</span>C; R13-17 = Four samples at chickpea-27<span>°</span>C; R25-28 = Four samples at chickpea-35<span>°</span>C; tab 5) and edgeR output data for plotting in R (tab 6). </p>
Environmental cues in coral reproduction: Photoperiod and seawater temperature influence oocyte development in <em>Acropora tenuis</em>
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Time of activity is a better predictor of the distribution of a tropical lizard than pure environmental temperatures
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Genome-wide DNA methylation patterns harbor signatures of hatchling sex and past incubation temperature in a species with environmental sex determination
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Systematic review and meta-analysis: water type and temperature affect environmental DNA decay metadata
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Data from: Scale-dependent responses to environmental fluctuations in tropical tree species’ crown temperatures
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Beyond cyanogenesis: Temperature gradients drive environmental adaptation in North American white clover (Trifolium repens L.)
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Temperature influences the outcomes of an environmentally-acquired symbiosis
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Nocturnal dispersal flight of crickets: behavioural and physiological responses to cool environmental temperatures
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Data from: Patterns of activity and body temperature of Aldabra giant tortoises in relation to environmental temperature
We studied the temperature relations of wild and zoo Aldabra giant tortoises (Aldabrachelys gigantea) focusing on: 1) the relationship between environmental temperature and tortoise activity patterns (n=8 wild individuals), and 2) on tortoise body temperature fluctuations, including how their core and external body temperatures vary in relation to different environmental temperature ranges (seasons; n=4 wild, and n=5 zoo individuals). In addition, we surveyed the literature to review the effect of body mass on core body temperature range in relation to environmental temperature in the Testudinidae. Diurnal activity of tortoises was bimodally distributed, and influenced by environmental temperature and season. The mean air temperature at which activity is maximised was 27.9˚C, with a range of 25.8–31.7˚C. Furthermore, air temperature predicted changes in the core body temperature better than did mass, and only during the coldest trial did tortoises with higher mass show more stable temperatures. Our results, together with the overall Testudinidae overview, suggest that, once variation in environmental temperature has been taken into account, there is little effect of mass on the temperature stability of tortoises. Moreover, the presence of thermal inertia in an individual tortoise depends on the environmental temperatures, and we found no evidence for inertial homeothermy. Finally, patterns of core and external body temperatures in comparison to environmental temperatures suggest that Aldabra giant tortoises act as mixed conformer-regulators. Our study provides a baseline to manage the thermal environment of wild and rewilded populations of an important island ecosystem engineer species in an era of climate change.
Fig. 2 in The Influence of Environmental Temperature and Humidity on the Elevational and Temporal Distributions of Rove Beetles (Coleoptera: Staphylinidae) in a Quercus L. Forest in Jalisco, Mexico
Fig. 2. Range-abundance of the most abundant species of carrion-trapped staphylinids at four elevations in oak forest on Cerro de Garc´ıa, Jalisco, Mexico. Species names for abbreviations are in Table 1.
Fig. 3 in The Influence of Environmental Temperature and Humidity on the Elevational and Temporal Distributions of Rove Beetles (Coleoptera: Staphylinidae) in a Quercus L. Forest in Jalisco, Mexico
Fig. 3. Coinertia analysis between environmental variables and number of carrion-trapped specimens of the most abundant staphylinid species at four altitudes in oak forest on Cerro de Garc´ıa, Jalisco, Mexico. a) Factorial plane of Coinertia of the four altitudes; the tip of the arrows represents the composition of the community of staphylinids at the indicated altitude and the diamond base represents the environmental variables, b) Projection of the vectors of the environmental variables, c) Diversity of carrion-trapped staphylinids in the factorial plane of Coinertia. Hmin = minimum humidity; H = average humidity; Hmax = maximum humidity; Tmin = minimum temperature; T = average temperature; Tmax = maximum temperature. Species names for abbreviations are in Table 1. Most species clustered around the center and are not shown. The species indicated are those that showed a significantly different tendency.
Fig. 4 in The Influence of Environmental Temperature and Humidity on the Elevational and Temporal Distributions of Rove Beetles (Coleoptera: Staphylinidae) in a Quercus L. Forest in Jalisco, Mexico
Fig. 4. Coinertia analysis among environmental variables and number of individuals per species at four altitudes on Cerro de Garc´ıa, Jalisco, Mexico: A) 2,100 m, B) 2,300 m, C) 2,500 m, D) 2,700 m. For each altitude: a) Factorial plan of Coinertia of the months; the tip of the arrows represents the composition of the community of staphylinids at the indicated altitude and the round dot base represents the environmental variables; b) Projection of the vectors of the environmental variables; c) Diversity of carrion-trapped staphylinids in the factorial plan of Coinertia. Hum = humidity, Tem = temperature. Species names for abbreviations are in Table 1. Most species clustered around the center and are not shown. The species indicated are those that showed a significantly different tendency.
Fig. 1. Study site. A in The Influence of Environmental Temperature and Humidity on the Elevational and Temporal Distributions of Rove Beetles (Coleoptera: Staphylinidae) in a Quercus L. Forest in Jalisco, Mexico
Fig. 1. Study site. A) Location of carrion traps on Cerro de Garc´ıa, B) Carrion trap, C) Quercus forest.
Core Body Temperature Measurement During Hot and Cold Environmental Exposure
ClinicalTrials.gov study NCT01793337. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Quantitative genetic variation in, and environmental effects on, pathogen resistance and temperature-dependent disease severity in a wild trout
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A quantitative analysis of vertebrate environmental DNA degradation in soil in response to time, UV light and temperature
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Allen Brain Atlas
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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.