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67 results for “metabolic traits”
Deriving population scaling rules from individual-level metabolism and life history traits - Code and Data
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The scaling of metabolic traits differs among larvae and juvenile colonies of scleractinian corals
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Data from: Metabolic traits and thresholds to inform marine ecological conservation and restoration
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Data from: The standard metabolic rate of a land snail (Cepaea hortensis) is a repeatable trait and influences winter survival
<p>Phenotypic selection on physiological parameters is an underrepresented topic in studies of evolutionary biology. There is especially a lack of studies involving invertebrate organisms. We studied the repeatability of the standard metabolic rate (SMR) and the effect of individual variation in SMR on the subsequent winter survival in a terrestrial shell-bearing mollusc, the white-lipped snail (<i>Cepaea hortensis</i>) in mid-Norway. SMR was measured twice during the autumn and – after an experimental overwintering at controlled conditions – twice during the following spring. We found a significant repeatability of SMR over all three time periods tested, with a clear effect of time, with a high repeatability of 0.56 over 4 days during spring, 0.44 over 12 days in the autumn and 0.17 over 194 days from autumn to spring. That SMR is a repeatable physiological trait across the winter period during which a possible selection might occur, suggests that SMR could be a potential target of natural selection. We indeed found that the autumn SMR significantly influenced the probability of survival during the winter period, with a combination of a positive linear (P = 0.011) and a quadratic stabilizing (P = 0.001) effect on SMR. Our results hence support the view that metabolic rate is an important physiological component influencing the fitness of an organism.</p>
Metabolic rate shapes phenotypic covariance among physiological, behavioral, and life history traits in honeybees
<p><span>Metabolic rate is often cited as the fundamental rate that determines the rate of all biological processes by shaping energetic availability for the various behavioral and life history traits that contribute to performance. It has therefore been suggested that metabolic rate drives the widely observed covariance among these different levels of phenotypic traits. However, much of the work on this topic has relied on pairwise correlational analysis, thereby leaving an important gap in our understanding regarding the functional links that shape this phenotypic covariance, often referred to as pace-of-life. Using honeybees as an experimental model, we measured a large number of behavioral, life history and physiological traits in individual bees and used a structural equation model to characterize the phenotypic covariance structure among these traits. Following this with a path analysis, we demonstrate that variation in metabolic rate plays a fundamental proximate role in driving this phenotypic covariance structure in honeybees. We discuss the importance of these findings in the context of how interindividual variation in terms of slow-fast phenotypes may drive the phenotype of a group and the functional role metabolic rate might play in shaping division of labor and social evolution.</span></p>
Data from: Metabolic traits of westslope cutthroat, introduced rainbow trout and their hybrids in an ecotonal hybrid zone along an elevation gradient
In the Upper Oldman River, Alberta, introduced non-native hatchery rainbow trout hybridize with native westslope cutthroat trout, resulting in a hybrid swarm. Rainbow trout dominate at low elevations (<1250 m) in the river mainstem, cutthroat in high elevation tributaries (>1400 m), and hybrids are numerically dominant in the mid-elevation range. We hypothesized that metabolism of rainbow trout would exceed that of cutthroat trout, and that the elevation gradient in genetic makeup would be mirrored by a gradient in metabolic traits, with intermediate traits in the hybrid dominated ecotone. Metabolic traits were measured and regressed against the genetic makeup of individuals and elevation. Rainbow trout had higher oxygen consumption rates (OCR), higher white muscle lactate dehydrogenase (LDH) and citrate synthase (CS) activity, and higher plasma acetylcholinesterase (AchE) than cutthroat trout. Hybrids had intermediate OCR and AchE, but LDH activity as high as rainbow trout. While hybrid zones are usually modeled as a balance between cross species mating and selection against hybrids, ecotonal hybrid zones, where hybrids proliferate in intermediate habitats and have traits that appear well suited to ecotonal conditions, have been proposed for some plants and animals, and may have important implications for resource management and conservation.
Metabolic rate and behavioral traits in Salmo trutta
<p>The behavior of organisms can be subject to human induced selection such as that arising from fishing. Angling is expected to induce mortality on fish with bold and explorative behavior, which are behaviors commonly linked to a high standard metabolic rate. We studied the transgenerational response of brown trout (<i>Salmo trutta</i>) to angling-induced selection by examining the behavior and metabolism of 1-year-old parr between parents that were or were not captured by experimental fly fishing. We performed the angling selection experiment on both a wild and a captive population, and compared the offspring for standard metabolic rate and behavior under predation risk in common garden conditions. Angling had population-specific effects on risk taking and exploration tendency, but no effects on standard metabolic rate. Our study adds to the evidence that angling can induce transgenerational responses on fish personality. However, understanding the mechanisms of divergent responses between the populations requires further study on the selectivity of angling in various conditions.</p>
Ecological and metabolic traits of non-aposematic species challenge the crypsis-aposematic duality of Neotropical poison frogs
<p>Within the context of animal defence strategies, most species are believed to be either cryptic or aposematic. In this sense, dendrobatid frogs are among the best-studied vertebrate systems in terms of colouration, behaviour, and chemical defence. Though a dual criterium, cryptic-palatable and conspicuous-toxic, was used to classify species within this clade, there are notorious exceptions that do not fit into this duality. In particular, some species assigned to the cryptic-palatable category possess colourful spots that markedly contrast the rest of the body's dark coloration and contain toxic substances. Here, we investigate whether two pairs of syntopic dendrobatids, in which one of the members within each pair has colour spots and the other a homogeneous dark colour, differ in the activity pattern, dietary specialization, foraging activity, and metabolic rate. In agreement with our prediction, we found that the coloured species in one of the pairs is more active and has a higher dietary selectivity and prey accumulation capacity. However, no association was not found for the other species pair. Furthermore, contrary to our prediction, species with coloured spots have a lower metabolic rate than their syntopic homogenous peers. Overall, our findings suggest that species with coloured spots could be classified in a different category based on ecological and metabolic traits while opening exciting perspectives for understanding the evolution of aposematism in amphibians.</p>
Public GWAS results for metabolic, blood cell, and autoimmune traits
<p>These data can be used to replicate the analysis in Morrison et al (2024) "Genetic Factor Analysis for Characterizing Phenome-Wide Patterns of Genetic Pleiotropy". <a href="https://github.com/jean997/gfa_manuscript/">Please see our github repository for more details.</a> </p>
Interspecific differences and ecological correlations of energy metabolism traits in freshwater fishes
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Metabolic rate and behavioral traits in Salmo trutta
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Data from: The standard metabolic rate of a land snail (Cepaea hortensis) is a repeatable trait and influences winter survival
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Data from: Genetic determinants for gestational diabetes mellitus and related metabolic traits in Mexican women
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Metabolic rate shapes phenotypic covariance among physiological, behavioral, and life history traits in honeybees
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Data from: Correlation of morphology and metabolism of reproductive traits in the genus Phrynocephalus around the Qinghai-Tibetan Plateau
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Data from: Metabolic traits of westslope cutthroat, introduced rainbow trout and their hybrids in an ecotonal hybrid zone along an elevation gradient
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Effects of presence of shelter on smallmouth bass metabolic traits - capture and experiment data
<p>These data combine basic capture data (location, date, and physical variables) of smallmouth bass (<em>Micropterus dolomieu</em>) and experimental (metabolic traits calculated from respirometry experiments) data. Metabolic traits estimated during experiments in presence or absence of shelter on smallmouth bass were standard metabolic rates (SMR), resting metabolic rates (RMR), maximum metabolic rates (MMR), aerobic scope (AS), recovery time from MMR to SMR (RT), and excess post-exercise oxygen consumption (EPOC). These data consist in datatables accessible openly. Details provided in metadata file.</p>
Data from: Early life experience drives short-term acclimation of metabolic and osmoregulatory traits in the leaf-eared mouse
We studied the putative effect of early experience on the physiological flexibility of metabolic and osmoregulatory traits in the leaf-eared mouse Phyllotis darwini, an altricial rodent inhabiting seasonal mediterranean environments. Adult individuals were collected in central Chile and maintained in breeding pairs. Pups were isolated after weaning and acclimated to different temperature (cold or warm) and water availability (unrestricted and restricted) until adulthood. Subsequently, individuals were re-acclimated to the opposite treatment. Rodents reared in warm and subjected to water restriction had lower basal metabolic rate (BMR), lower total evaporative water loss (TEWL), and body mass (Mb) compared to those developing in the cold treatment; nevertheless, individuals subjected to warm temperatures had greater relative medullary thickness (RMT) and urine concentrating ability (UCA). Cold-reared rodents re-acclimated to warm conditions exhibited physiological flexibility of metabolic traits; however, their osmoregulatory attributes did not vary. Conversely, warm-reared rodents re-acclimated to cold had reduced RMT and UCA, but the metabolic traits of these individuals did not change; these results suggest a trade-off between metabolic performance and renal capabilities that might hinder physiological acclimation. Our results support the hypothesis of ontogenetic dependence of short-term acclimation in osmoregulatory and metabolic traits in Phyllotis darwini.
Data from: Functional traits in red flour beetles: the dispersal phenotype is associated with leg length but not body size nor metabolic rate
Individuals vary in their ability to disperse. Much of this variation can be described by covarying phenotypic traits that are related to dispersal (constituting the 'dispersal phenotype' or 'dispersal syndrome'), but the nature of the associations among these traits is not well understood. Unravelling the associations among traits that potentially constitute the dispersal phenotype provides a foundation for understanding evolutionary trade-offs due to variation in dispersal. Here, we tested five predictions pertaining to the relationships among physiological, morphological and movement traits that are associated with dispersal, using a species with a long history as a laboratory model for studying ecological phenomena, red flour beetles (Tribolium castaneum). We identified a dominant axis of movement ability that describes variation in dispersal-related movement traits. Individuals that scored positively on this axis moved at higher speed, travelled longer distances, had lower movement intermittency and dispersed quicker to a specified area. Relative leg length, but not body size nor routine metabolic rate related positively with movement ability, indicating a likely mechanistic relationship between increased stride length and movement ability. Our data suggest that the dispersal phenotype may be more strongly linked to morphological traits than physiological ones. We demonstrate that associations among many functional traits do not necessarily conform to a priori expectations, and predict that the substantial intraspecific variation in trait values may be important for selection. Movement is a complex behavioural trait, but it has a mechanistic basis in locomotor morphology that warrants further exploration.
Data from: Early life experience drives short-term acclimation of metabolic and osmoregulatory traits in the leaf-eared mouse
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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.