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4 results for “life-history tradeoffs”
Grow fast but don’t die young: maternal effects mediate life-history tradeoffs of lizards under climate warming
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Data from: Experimentally decoupling reproductive investment from energy storage to test the functional basis of a life-history tradeoff
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Data from: Sexual dimorphism explains residual variance around the survival-reproduction tradeoff in lizards: implications for sexual conflict over life-history evolution
The tradeoff between survival and reproduction is a central feature of life-history variation, but few studies have sought to explain why females of some species exhibit relatively lower survival than expected for a given level of reproductive effort. Intralocus sexual conflict theory proposes that sex differences in selection on survival and reproductive effort may, by virtue of shared genes underlying these components of fitness, prevent females from optimizing this life-history tradeoff. To test this hypothesis, we used a phylogenetically based comparative analysis of published estimates for mean annual survival and reproductive effort from females of 82 lizard species to (1) characterize the tradeoff between survival and reproduction, and (2) test whether variation around this tradeoff is explained by sexual size dimorphism (SSD), a potential proxy for sexual conflict over life-history traits. Across species, we found a strong negative correlation between mean annual survival and reproductive effort, confirming this classic life-history tradeoff. Although residual variance around this tradeoff is unrelated to the absolute magnitude of SSD, it is strongly related to the direction of SSD. Specifically, we found that females have lower survival than expected for a given level of reproductive effort in female-larger species, whereas they have higher survival than expected in male-larger species. Given that female-larger SSD is thought to reflect selection for increased fecundity, our results suggest that intralocus sexual conflict may be particularly likely to constrain female life-history evolution in situations where increased reproductive effort is favored, but the phenotypes that facilitate this increase (e.g., body size) are constrained by antagonistic selection on males.
Data from: Sexual dimorphism explains residual variance around the survival-reproduction tradeoff in lizards: implications for sexual conflict over life-history evolution
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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.