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373 results for “Asymmetry”
Folding-unfolding asymmetry and a RetroFold computational algorithm
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Leaf fluctuating asymmetry is not a reliable indicator of stress
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Does competitive asymmetry confer polyploid advantage under changing environments?
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Data from: Digit ratio and length asymmetry in calves’ limbs
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Asymmetries-induced nonlinear dynamic behaviors enable a versatile modulation strategy for insect-scale robotics
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Effects of community richness and competitive asymmetry on protozoa evolution in Sarracenia purpurea leaves
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Linking shape conspicuous asymmetry with shape covariation patterns and performance in the insect head and mandibles
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Data from: Conformational dynamics and asymmetry in multimodal inhibition of membrane-bound pyrophosphatases
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Patterns of bilateral asymmetry and allometry in Late Devonian Polygnathus conodonts
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Anatomy, variation, and asymmetry of the bronchial tree in the African grey parrot (Psittacus erithacus)
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Data from: Experimental warming does not change fluctuating asymmetry in three willow species
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Data from: Asymmetries affecting aggressive contests between solitary parasitoids: the effect of host species
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Connectional asymmetry of the inferior parietal lobule shapes hemispheric specialization in humans, chimpanzees, and rhesus macaques
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Data for: Connecting hemispheric asymmetries of planetary albedo and surface temperature
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Asymmetry of thermal sensitivity and the thermal risk of climate change
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Data from: Cyclone-anticyclone asymmetry of eddy detection on gridded altimetry product in the Mediterranean Sea
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Niche partitioning among three snail-eating snakes revealed by dentition asymmetry and prey specialisation
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Supporting Data for Hahn et al. GRL: Antarctic elevation drives hemispheric asymmetry in polar lapse rate climatology and feedback
<p>This dataset includes CESM model output used to create figures in Hahn et al.: “Antarctic elevation drives hemispheric asymmetry in polar lapse rate climatology and feedback” in Geophysical Research Letters. Here we provide monthly climatologies averaged over the last thirty years of each experiment, for flat and control Antarctica with preindustrial and doubled CO<sub>2</sub> forcing. The variables hyam, hybm, and P0, useful for interpolating to pressure levels, are included in the ControlSOM1850.Q.nc file.</p>
Raw data: The timing and asymmetry of plant-pathogen-insect interactions
<p>Insects and pathogens frequently exploit the same host plant and can potentially impact each other's performance. However, studies on plant-pathogen-insect interactions have mainly focused on a fixed temporal setting or on a single interaction partner. In this study, we assessed the impact of time of attacker arrival on the outcome and symmetry of interactions between aphids (<i>Tuberculatus annulatus</i>), powdery mildew (<i>Erysiphe alphitoides</i>) and caterpillars (<i>Phalera bucephala</i>) feeding on pedunculate oak, <i>Quercus robur, </i>and explored how single vs. multiple attackers affect oak performance. We used a multifactorial greenhouse experiment in which oak seedlings were infected with either zero, one, two or three attackers, with the order of attacker arrival differing among treatments. The performances of all involved organisms were monitored throughout the experiment. Overall, attackers had a weak and inconsistent impact on plant performance. Interactions between attackers, when present, were asymmetric. For example, aphids performed worse, but powdery mildew performed better, when co-occurring. Order of arrival strongly affected the outcome of interactions, and early attackers modified the strength and direction of interactions between later arriving attackers. Our study shows that interactions between plant-attackers can be asymmetric, time-dependent and species-specific. This is likely to shape the ecology and evolution of plant-pathogen-insect interactions. </p>
Data from: Individual asymmetry as a predictor of fitness in the bat Carollia perspicillata
The measurement of fitness in wild populations is a challenging task, and a number of proxies have been proposed with different degrees of success. Developmental instability/stability (DI) is an organismal property associated with variance in bilateral asymmetry (fluctuating asymmetry – FA), and a correlated effect on fitness. This study provides evidence to corroborate the hypothesis that asymmetry partly reflects DI and is correlated with a reduction in fitness measured by survival and reproduction in bats. We studied two Colonies of the bat Carollia perspicillata in Southeastern Brazil over five years, marking and recapturing individuals. Gaussian mixture models for signed forearm asymmetry distribution indicated that ~20% of asymmetry variation was due to DI heterogeneity among individuals. Forearm Asymmetry (ForA), Body Condition (Scaled Mass Index – SMI) and Forearm Length (ForL) were used as predictors of survival probability in Cormack-Jolly-Seber models. Asymmetry was negatively associated with survival, whereas SMI and ForL were positively associated. The male C. perspicillata defend sites within the roost that are favoured by female harems, but there are mating opportunities for bachelor males, leading to both territorial disputes and sperm competition. As predicted by sexual selection, ForA was negatively associated with relative Testicle Length, a measure of reproductive potential. In females, ForA was negatively associated with the probability of two pregnancies (as opposed to one) in a given breeding season. The effect magnitudes and directions of associations suggest that asymmetry, even though not perfectly reflecting DI variation, is a useful predictor for fitness components in C. perspicillata.
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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.