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5 results for “energetic stress”
Carry-over effects of larval food stress on adult energetics and life history in a nectar-feeding butterfly
<p>Stressful juvenile developmental conditions can affect performance and fitness later in life. In holometabolous insects such as butterflies, development under stressful conditions may lead to smaller adult size, lower reproductive output and shorter lifespan. However, how larval developmental stress affects energy intake and expenditure in adult individuals is poorly understood.</p> <p>We subjected last-instar larvae of <i>Speyeria mormonia</i> Edwards (Lepidoptera: Nymphalidae) to periodic dietary restriction (DR) to examine the allocation of energy and nutrients among different life-history processes. We measured adult food intake, resting metabolic rate (RMR), metabolic flight capacity, lifespan, and reproductive output. Consistent with pressure to disperse from a poor environment while maintaining offspring number, we predicted that stressed individuals would have increased adult food intake and higher flight capacity.</p> <p>Adult body size was strongly reduced. Contrary to predictions, we found no compensatory adult feeding. Mass-adjusted flight metabolic rate was reduced, suggesting poor dispersal capacity. Larval DR did not affect adult lifespan, nor did the rate of metabolic senescence change. Larval DR did affect RMR, as stressed females had a steeper slope between RMR and body mass, which may reflect differences in physiological activity due to condition.</p> <p>Fecundity decreased less than predicted based on body mass. Instead of investing in flight capacity, females increased relative allocation to reproduction, which may partly buffer against poor environmental conditions.</p> <p>Understanding the interplay of energy acquisition and allocation to life history traits across the life cycle is vital for predicting responses to environmental change.</p>
Data from: Effects of flight and food stress on energetics, reproduction, and lifespan in the butterfly Melitaea cinxia
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Carry-over effects of larval food stress on adult energetics and life history in a nectar-feeding butterfly
Open the record for dataset details and reuse information.
Mitochondrial energetic stress triggers AMPK/FNIP1-dependent TFEB nuclear translocation, inducing transcriptional waves of lysosomal and mitochondrial biogenesis.
GEO Series GSE218827. Homo sapiens. 240 samples. Type: Expression profiling by high throughput sequencing.
Transcriptomic changes induced by acute mtDNA depletion in IMR90 cells in the absence of energetic stress
GEO Series GSE273181. Homo sapiens. 14 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
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International Brain Laboratory public data
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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.