Find research datasets worth reusing

Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.

176

datasets available to search

ShareScore release 0.9.0

Dataset results

176 results for “temperature variation”

Learn how ShareScore rates datasets ↗

zenodo36/100

The Repository for the Manuscript "Temperature and Precipitation Dominate Seasonal Variations in Seismic Velocity and Attenuation in Deserts"

Overview This dataset contains the essential code and data for calculating the Horizontal-to-Vertical Spectral Ratio (HVSR), analyzing vehicle-generated seismic events, retrieving Q-values, and comparing them with meteorological data. It also includes waveform data from 20 seismic events. The seismic data originate from a temporary broadband seismic array deployed in the Tarim Basin, from July 2017 to October 2019 (Zuo et al., 2022). This dataset focuses on three seismic stations: T12, T52, and T23. Stations T12 and T23 recorded data from July 2017 to October 2019, while station T52 recorded from November 2018 to October 2019.   Code The dataset includes Python scripts for calculating HVSR and retrieving Q-values. The HVSR calculation follows Li et al., (2023), while forward modeling is based on Antonio García-Jerez et al., (2016). The codes for Q-value estimation are stored in ‘Retrieving Q-value’ folder. The Q-value estimation process, demonstrated for station T12 in Jupyter Notebook, involves extracting single vehicle signals from continuous data, time-frequency spectrogram calculations, two-dimensional correlation coefficient of their time-frequency amplitude calculations, using hierarchical clustering algorithm to classify vehicle signals, vehicle speed estimation, and performing Q-value inversion.   Dataset HVSR variations over time for three stations are calculated from continuous seismic recordings and are stored in the ‘HVSR’ folder under each station directory. Time-frequency spectrograms for Q-value estimation are stored in the ‘Spectrogram’ folder, with filenames indicating the record time of each vehicle signal. The Q-value is inverted using these signals, and for stability, we stacked every 100 individual results, which are stored in the 'Q-values' folder under the corresponding station name folder. Due to interference from wind and other sources, Q-value inversion using vehicle signals was unreliable for T23, so Q-values are only provided for T12 and T52. Meteorological data (temperature and soil water content) are stored in the ‘temperature’ and ‘soil water content’ folders under each station directory. Seismic event waveforms for 20 selected strong earthquakes are stored in the ‘events’ folder, with filenames indicating the start and end times of the events.

opencc-by-4.0Sep 2024View details →

dryad36/100

Mimulus cardinalis plasticity analyses and R scripts for: Spatial variation in high temperature-regulated gene expression predicts evolution of plasticity with climate change in the scarlet monkeyflower

A major way that organisms can adapt to changing environmental conditions is by evolving increased or decreased phenotypic plasticity. In the face of current global warming, more attention is being paid to the role of plasticity in maintaining fitness as abiotic conditions change over time. However, given that temporal data can be challenging to acquire, a major question is whether evolution in plasticity across space can predict adaptive plasticity across time. In growth chambers simulating two thermal regimes, we generated transcriptome data for western North American scarlet monkeyflowers (Mimulus cardinalis) collected from different latitudes and years (2010 and 2017) to test hypotheses about how plasticity in gene expression is responding to increases in temperature, and if this pattern is consistent across time and space. Supporting the genetic compensation hypothesis, individuals whose progenitors were collected from the warmer-origin northern 2017 descendant cohort showed lower thermal plasticity in gene expression than their cooler-origin northern 2010 ancestors. This was largely due to a change in response at the warmer (40ºC) rather than cooler (20ºC) treatment. A similar pattern of reduced plasticity, largely due to a change in response at 40ºC, was also found for the cooler-origin northern versus the warmer-origin southern population from 2017. Our results demonstrate that reduced phenotypic plasticity can evolve with warming and that spatial and temporal changes in plasticity predict one another.

opencc-zeroDec 2021View details →

dryad36/100

Data for: Adaptive variation in the upper limits of avian body temperature

Physiological performance declines precipitously at high body temperature (Tb), but little attention has been paid to adaptive variation in upper Tb limits among endotherms. We hypothesized that avian maximum tolerable body temperature (Tbmax) has evolved in response to climate, with higher Tbmax in species exposed to high environmental heat loads or humidity-related constraints on evaporative heat dissipation. To test this hypothesis, we compared Tbmax and related variables among 53 bird species at multiple sites in South Africa with differing maximum air temperatures (Tair) and humidity using a phylogenetically-informed comparative framework. Birds in humid, lowland habitats had comparatively high Tbmax (mean ± SD = 45.60 ± 0.58°C) and low normothermic Tb (Tbnorm), with a significantly greater capacity for hyperthermia (Tbmax -Tbnorm gradient = 5.84 ± 0.77 °C) compared to birds occupying cool montane (4.97 ± 0.99 °C) or hot arid (4.11 ± 0.84 °C) climates. Unexpectedly, Tbmax was significantly lower among desert birds (44.65 ± 0.60°C), a surprising result in light of the functional importance of hyperthermia for water conservation. Our data reveal a macrophysiological pattern and support recent arguments that endotherms have evolved thermal generalization versus specialization analogous to the continuum among ectothermic animals. Specifically, a combination of modest hyperthermia tolerance and efficient evaporative cooling in desert birds is indicative of thermal specialization, whereas greater hyperthermia tolerance and less efficient evaporative cooling among species in humid lowland habitats suggests thermal generalization.

opencc-zeroJun 2022View details →

zenodo36/100

Figure 2 in Temperature variation in nests of Paleosuchus palpebrosus (Crocodylia: Alligatoridae) near the southern edge of the species´ range, Brazil

Figure 2. Egg-chamber temperatures for three nests in the Serra do Urucum, in 2010, 2012, and 2013.

opencc-by-4.0Dec 2022View details →

zenodo36/100

Natural temperature variation at the origin site can determine coral resistance to thermal stress

This repository contains data files and scripts used in the research paper titled "Natural temperature variation at the origin site can determine coral resistance to thermal stress." The provided materials support the analysis and results presented in the study.

opencc-by-4.0Sep 2024View details →

dryad36/100

Genetic variation for upper thermal tolerance diminishes within and between populations with increasing acclimation temperature in Atlantic salmon

Populations may counteract lasting temperature changes or recurrent extremes through plasticity or adaptation. However, it remains underexplored how outbreeding, either naturally, unintentionally, or facilitated, may modify a local response potential and whether genotype-by-environment interactions or between-trait correlations can restrict this potential. We quantified population differences and outbreeding effects, within-population genetic variation, and plasticity of these, for thermal performance proxy traits using 32 pedigreed wild, domesticated, and wild-domesticated Atlantic salmon families reared under common-garden conditions. Following exposure to ambient cold (11.6°C) or ~4- and ~8-degree warmer summer temperatures, populations differed notably for body length and critical thermal maximum (CTmax) and for thermal plasticity of length, condition, and CTmax, but not for haematocrit. Line-cross analysis suggested mostly additive and some dominant outbreeding effects on means and solely additive outbreeding effects on plasticity. Heritability was detected for all traits. However, with increasing acclimation temperature, differences in CTmax between populations and CTmax heritability diminished, and CTmax breeding values re-ranked. Furthermore, CTmax and body size were negatively correlated at the genetic and phenotypic levels, and there was indirect evidence for a positive correlation between growth potential and thermal performance breadth for growth. Thus, population differences (including those between wild and domesticated populations) in thermal performance and plasticity may present a genetic resource in addition to the within-population genetic variance to facilitate, or impede, thermal adaptation. However, unfavourable genotype-by-environment interactions and negative between-trait correlations may generally hamper joint evolution in response to increase in average temperature and temporary extremes.

opencc-zeroAug 2021View details →

zenodo36/100

Data for the effects of temperature variation on the thermal adaptation of soil microbial respiration

Data for the effects of temperature variation on the thermal adaptation of soil microbial respiration

opencc-by-4.0Feb 2022View details →

zenodo36/100

Measurement of the fumarole temperature of the north eastern crater rim of Vesuvius -----Long-term variations of fumarole temperature of the north eastern crater rim of Vesuvius (Italy)

<pre>Measurements of the fumarole temperature of the north eastern edge of Vesuvius have been carried out since 1995. The temperature is measured at a depth of 10 cm using a K-type thermocouple. The coordinate of the fumarole is 33T 451833.1m E - 4519224.8m N.</pre> <pre>The monitored fumarole is the one at the highest altitude present on Vesuvius </pre> The fumarole is characterized by low temperatures (59.5 - 75.6 ˚C) and discharge a mixture of air (46% -72%), steam (25% -45%) and CO2 (0.2% -2%). The air is the main component of fumarole, is most likely included in the upper fluids part of the fumarolic ducts found in the highly permeable products of the Vesuvian cone.

opencc-by-4.0Jul 2022View details →

dryad36/100

Data for: Beyond latitude: Temperature, productivity, and thermal niche conservatism drive global body size variation in Odonata

Aim: So far, latitudinal body size-clines have been primarily discussed in the context of thermoregulation, sensu Bergmann. However, body size patterns are ambiguous in ectotherms and this heterogeneity remains poorly understood. We tested whether Bergmann's rule and the resource availability rule which states that energetic requirements determine species' body size, apply to damselflies and dragonflies (Odonata). Furthermore, we hypothesised that the contrasting effects of thermoregulation and resource availability (e.g. productivity) can obscure the overall gradient in body size variation. Location: Global Time period: Contemporary Major taxa studied: Odonata Methods: Using data for 43% of all odonate species described so far, we tested our hypotheses in phylogenetically and spatially comparative analyses at assemblage and species level. For the distribution data, we integrated expert range maps and ecoregional ranges based on all available occurrence records. To distinguish between long-term versus evolutionarily recent responses of environmental drivers in body size, we constructed a phylogenetically informed classification of all odonate species and decomposed the body size into its phylogenetic and specific component for our subset of species. Results: We documented a weak positive relationship between body length and latitude but found strong and contrasting effects for temperature between dragonflies and damselflies and consistent positive effects for productivity that explained 35%–57% of body size variation. Moreover, we showed a strong phylogenetic signal in sized-based thermoregulation that shaped the distribution of dragonflies, but not of damselflies. Main conclusion: We concluded that temperature, productivity, and conservatism in size-based thermoregulation synergistically determine the distribution of ectotherms, while the taxon-specific importance of these factors can lead to contrasting results and weak latitude–size relationships. Our results reinforce the importance of body size as a determinant of species distributions and responses to climate change.

opencc-zeroFeb 2023View details →

dryad36/100

Data from: The contribution of mutation to variation in temperature-dependent sprint speed in zebrafish, Danio rerio

The contribution of new mutations to phenotypic variation, and the consequences of this variation for individual fitness, are fundamental concepts for understanding genetic variation and adaptation. Here, we investigated how mutation influenced variation in a complex trait in zebrafish, Danio rerio. Typical of many ecologically relevant traits in ectotherms, swimming speed in fish is temperature-dependent, with evidence of adaptive evolution of thermal performance. We chemically induced novel germline point mutations in males and measured sprint speed in their sons at six temperatures (between 16°C and 34°C). Heterozygous mutational effects on speed were strongly positively correlated among temperatures, resulting in statistical support for only a single axis of mutational variation, reflecting temperature-independent variation in speed (faster-slower mode). These results suggest pleiotropic effects on speed across different temperatures, however, spurious correlations arise via linkage, or heterogeneity in mutation number when mutations have consistent directional effects on each trait. Here, mutation did not change mean speed, indicating no directional bias in mutational effects. The results contribute to emerging evidence that mutations may predominantly have synergistic cross-environment effects, in contrast to conditionally neutral or antagonistic effects which underpin thermal adaptation. We discuss several aspects of experimental design that may affect resolution of mutations with non-synergistic effects.

opencc-zeroMar 2023View details →

zenodo36/100

Data for Radiation and temperature drive diurnal variation of aerobic methane emissions from Scots pine canopy

Aerobic methane emissions from plant foliage may play an important role in the global methane cycle, but their size and the underlying source processes remain poorly understood. Here, we quantify methane fluxes from the shoots Scots pine trees, a dominant tree species in boreal forests,  identify source processes and environmental drivers, and evaluate the potential of leaf emissions to constrain methane emissions at the ecosystem-level eddy covariance flux measurements. We show that shoot-level measurements conducted in forest, garden, or greenhouse settings; on mature trees and saplings; manually and with an automated CO2 -, temperature-, and water-controlled chamber system; and with multiple methane analysers  all resulted in comparable daytime flux rates  (0.094±0.035 to 0.241±0.090 nmol CH4 g-1 foliar dw h-1). We find that methane emissions from Scots pine shoots exhibit a pronounced diurnal cycle that closely follows photosynthetically active radiation (PAR) and is further modulated by temperature. These diurnal patterns indicate that methane production is associated with diurnal cycle of sunlight, suggesting that methane is either a byproduct of photosynthesis-associated biochemical reactions (e.g. the methionine cycle) or produced through non-enzymatic photochemical reactions in plant biomass. Moreover, we identified a light-dependent component in stand-level methane fluxes, which showed an order-of-magnitude agreement with shoot-level measurements (0.968±0.031 nmol CH4 g-1 h-1), and which provides an upper limit to shoot methane emissions.

opencc-by-4.0Jun 2023View details →

zenodo36/100

Supplementary data to "What are the effects of temperature on plasticity, shape symmetry and seasonal variation in freshwater benthic green microalga Micrasterias thomasiana?"

The supplementary data consist of the files including the landmark coordinates of Micrasterias thomasiana semicells used for the analyses described in the manuscript submitted to Aquatic Ecology. The coordinates are presented in the TPS format.

opencc-by-4.0Jul 2023View details →

ClinicalTrials.gov36/100

Skin Temperature Gradient Effects on the Variation of Metabolic Hormones in Adults

ClinicalTrials.gov study NCT03625817. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.

restrictedIPD-UNDECIDEDFeb 2026View details →

dryad36/100