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.
101
datasets available to search
ShareScore release 0.9.0
Dataset results
101 results for “development rate”
Ontogenetic variation in metabolic rate-temperature relationships during larval development
<p><span>Predictive models of ectotherm responses to environmental change often rely on thermal performance data from the literature. For insects, the majority of these data focus on two traits, development rate and thermal tolerance limits. Data are also often limited to the adult stage. Consequently, predictions based on these data generally ignore other measures of thermal performance and do not account for the role of ontogenetic variation in thermal physiology across the complex insect life cycle. Theoretical syntheses for predicting metabolic rate also make similar assumptions despite the strong influence of body size as well as temperature on metabolic rate. The aim of this study was to understand the influence of ontogenetic variation on ectotherm physiology and its potential impact on predictive modeling. To do this we examined metabolic rate-temperature (MR-T) relationships across the larval stage in a laboratory strain of the Spongy moth (<em>Lymantria dispar dispar</em>). Routine metabolic rates (RMR) of larvae were assayed at nine temperatures across the first five instars of the larval stage. After accounting for differences in body mass, larval instars showed significant variation in MR-T. Both the temperature sensitivity and allometry of RMR increased and peaked during the third instar, then declined in the fourth and fifth instar. Generally, these results show that insect thermal physiology does not remain static during larval ontogeny and suggest that ontogenetic variation should be an important consideration when modeling thermal performance.</span></p>
Supplementary material 3 from: Vinasco AFM, Carrejo NSG (2016) Morphology and development rate of the immature stages of Glyphidops (Oncopsia) flavifrons (Bigot, 1886) (Diptera, Neriidae) under natural conditions. ZooKeys 603: 141-159. https://doi.org/10.3897/zookeys.603.7355
Egg hatching of Glyphidops (Oncopsia) flavifrons : Explanation note: Moments before the hatching, the larva is observed moving the body and the head, rubbing its mandibles against the inner wall of the egg and finally thrusting the corium. The larva emerges from the anterior part of the egg by using one of the two longitudinally lateral hatching lines.
Supplementary material 2 from: Vinasco AFM, Carrejo NSG (2016) Morphology and development rate of the immature stages of Glyphidops (Oncopsia) flavifrons (Bigot, 1886) (Diptera, Neriidae) under natural conditions. ZooKeys 603: 141-159. https://doi.org/10.3897/zookeys.603.7355
Mating and oviposition process of Glyphidops (Oncopsia) flavifrons : Explanation note: The body of each egg is buried in the substrate and the filament is spread over the surface. As the female began laying eggs (reaching packages up to 20 eggs, one egg at a time), it was observed that numerous filaments were emerging and radiating from the same point. Along this process, the male remains close to the female and the mating happen continuously between laid eggs.
Supplementary material 1 from: Vinasco AFM, Carrejo NSG (2016) Morphology and development rate of the immature stages of Glyphidops (Oncopsia) flavifrons (Bigot, 1886) (Diptera, Neriidae) under natural conditions. ZooKeys 603: 141-159. https://doi.org/10.3897/zookeys.603.7355
Cluster analysis of mandibular area and hypopharyngeal sclerite : Explanation note: Cluster analysis of mandibular area and hypopharyngeal sclerite length across time supports the concept of three larval instar (similarity indexes between 95% and 100%). (a) body length of the larva, (b) mandibular area and (c) length of hypopharyngeal sclerite. Each color represents a larval instar (Ln).
Data from: Positive selection in development and growth rate regulation genes involved in species divergence of the genus Radix
Background: Life history traits like developmental time, age and size at maturity are directly related to fitness in all organisms and play a major role in adaptive evolution and speciation processes. Comparative genomic or transcriptomic approaches to identify positively selected genes involved in species divergence can help to generate hypotheses on the driving forces behind speciation. Here we use a bottom-up approach to investigate this hypothesis by comparative analysis of orthologous transcripts of four closely related European Radix species. Results: Snails of the genus Radix occupy species specific distribution ranges with distinct climatic niches, indicating a potential for natural selection driven speciation based on ecological niche differentiation. We then inferred phylogenetic relationships among the four Radix species based on whole mt-genomes plus 23 nuclear loci. Three different tests to infer selection and changes in amino acid properties yielded a total of 134 genes with signatures of positive selection. The majority of these genes belonged to the functional gene ontology categories "reproduction" and "genitalia" with an overrepresentation of the functions "development" and "growth rate". Conclusions: We show here that Radix species divergence may be primarily enforced by selection on life history traits such as (larval-) development and growth rate. We thus hypothesise that life history differences may confer advantages under the according climate regimes, e.g., species occupying warmer and dryer habitats might have a fitness advantage with fast developing susceptible life stages, which are more tolerant to habitat desiccation.
Data from: Rearing and sampling methods for estimating spruce budworm development rates at constant temperatures
<p>We describe an experimental protocol for measuring the response of spruce budworm post-diapause larval development to temperature. This protocol is specifically designed to include measurements of development near their upper and lower thermal thresholds. The application of this protocol to a laboratory colony allowed for the first experimental evidence that spruce budworm larval development occurs at temperatures as low as 5 ºC and as high as 35 ºC and provides data to estimate development rates at temperatures from 5–35 ºC in 5 ºC increments. Our protocol is also designed to minimize mortality near the thermal development thresholds thus allowing for multi-generational studies. We observed developmental plasticity in larvae reared at constant temperatures, particularly the occurrence of up to 42% of some individuals requiring only five instars to complete development, compared to the expected six instars. An occurrence that exhibited no clear relation to temperature. While this protocol is specifically designed for spruce budworm, it provides a template for the study of other species' developmental responses to temperature.</p>
Figure 2 in Development rates, larval survivorship and wing length of Culex pipiens (Diptera: Culicidae) at constant temperatures
Figure 2. Temperature-dependent rate of development in male (A) and female (B) Culex pipiens from larva I until adult emergence: observed data (open circles) fitted to the Briére model (dotted line) and degree-day model (solid line).
Figure 1 in Development rates, larval survivorship and wing length of Culex pipiens (Diptera: Culicidae) at constant temperatures
Figure 1. Median (Q1–Q3) developmental time (days) of males (M) and females (F) of Culex pipiens at five constant temperatures: (A) from larva I until adult emergence; (B) for larvae IV only. Within each temperature and life stage, medians followed by different letters are significantly different (P <0.05, Mann–Whitney U -test). Numbers of individuals that emerged as male or female are indicated in parentheses.
Figure 3 in Development rates, larval survivorship and wing length of Culex pipiens (Diptera: Culicidae) at constant temperatures
Figure 3. Mean (± SEM) wing length of males (filled squares) and females (open squares) of Culex pipiens reared under constant temperature conditions. Asterisks indicate significant differences between sexes (Student's t-test, P <0.05). For each sex, means with different letters are significantly different (analysis of variance, Tukey's test, P <0.05).
Table S1. Clinical failure rates in drug development: data sources.
<p>Supplementary table comprising the data sources used in the manuscript “No Improvement in 60 Years: Drug Failure Rates from the 1960s to the 2010s”.</p>
Effect of temperature on the post-diapause development rate, survival, and body mass of the solitary wasp Isodontia elegans
<p>We examined the relationship of post-diapause rearing temperature to developmental rate, survival, and adult body mass of the solitary wasp <em>Isodontia</em> <em>elegans</em> using prepupae from trap-nests. <em>Isodontia</em> <em>elegans</em> is a member of a genus often found in trap-nests in North America and Europe. Trap-nests are commonly used tools for studying cavity-nesting solitary wasps and bees. In temperate zones, progeny in nests usually overwinter as fully prepupae before pupating and emerging as adults. An important aspect of properly using trap-nests is determining temperatures that affect survival and health of developing offspring. After overwintering >600 cocoons containing prepupae after the summers of 2015 and 2016, we placed cocoons on a laboratory thermal gradient where offspring experienced one of 19 constant temperatures from 643°C; emergence of adults was monitored for 100 days. Our conservative estimate for the critical thermal minimum for development is 14°C, whereas that for the critical maximum is ~33°C. Prepupae transitioned to adults most rapidly at 29–33°C, but developmental rate was lower for some progeny exposed to temperatures ≥30°C. Offspring successfully reached the adult stage in <100 days at of temperatures of ~19–33°C. Adults from cocoons reared at lower temperatures weighed on average 6-10% more than expected based on their head widths, whereas those reared at higher temperatures weighed 4–10% less than expected. The difference may be due to greater rates of water loss and lipid metabolism during development at higher temperatures. Pre-overwintering cocoon mass was a significant predictor of relative adult body mass, indicating that adult health is partly related to their condition before overwintering. The trends we observed were similar to those for the bee <em>Megachile</em> <em>rotundata</em>, which we previously studied on the same gradient apparatus. However, data are needed on many other species of wasps and bees from a diversity of environments. </p>
Single-step Versus Sequential Media in Preimplantation Embryo Development and Pregnancy Rates
ClinicalTrials.gov study NCT02048527. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Technical Development of Cardiovascular Magnetic Resonance Imaging (CMR) Using a Low Specific Absorption Rate (SAR) Scanner System
ClinicalTrials.gov study NCT03331380. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Development of Alternatives for the Estimation of the Resting Metabolic Rate From Anthropometry in Paralympic Athletes
ClinicalTrials.gov study NCT04478565. IPD Sharing: NO. Countries: 1. Publications: 9.
Faculty Development to Improve Mini-CEX Ratings
ClinicalTrials.gov study NCT00667940. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Development and Validation of New "SNU Illustrated Pain Rating Scale" as a Tool for Postoperative Pain Assessment
ClinicalTrials.gov study NCT03764046. IPD Sharing: Not stated. Countries: 1. Publications: 11.
e-Motivación: Developing and Pilot Testing an App to Improve Latinos' Screening Colonoscopy Rates
ClinicalTrials.gov study NCT04987788. IPD Sharing: YES. Countries: 1. Publications: 0.
Development of a New Non-radioactive Test for Measuring Glomerular Filtration Rate Using the Tetrapeptide N-acetyl-Ser-Asp-Lys-Pro-amide (AcSDKP-NH2)
ClinicalTrials.gov study NCT01588756. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Development and Validation of Creatinine-Based Estimates of the Glomerular Filtration Rate Equation
ClinicalTrials.gov study NCT05112393. IPD Sharing: Not stated. Countries: 1. Publications: 20.
Data from: Positive selection in development and growth rate regulation genes involved in species divergence of the genus Radix
Open the record for dataset details and reuse information.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.