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35 results for “offspring sex ratio”
Data from: Sons do not take advantage of a head start: parity in herring gull offspring sex ratios despite greater initial investment in males
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Data from: Is biasing offspring sex ratio adaptive? a test of Fisher’s principle across multiple generations of a wild mammal in a fluctuating environment
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Data from: Parental thermal environment alters offspring sex ratio and fitness in an oviparous lizard
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Density dependence of clutch size and offspring sex ratio in starling colonies
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Data from: Cross-fostering eggs reveals that female collared flycatchers adjust clutch sex ratios according to parental ability to invest in offspring
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Data from: Protoporphyrin-based eggshell pigmentation is associated with female plumage colouration and predicts offspring sex ratio in the barn swallow
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Offspring sex-ratios are stable across the life-course in Drosophila simulans
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Data from: Grazing pressure affects offspring sex ratio in a socially monogamous passerine on the Tibet Plateau
Livestock grazing can affect habitat structure and availability of arthropod prey for grassland birds, and ultimately determines habitat quality. The habitat quality may affect breeding strategies (e.g. sex ratio adjustment) in bird species, but yet studies investigating grazing intensity on offspring sex ratio are still rare. In this paper, we examined the effect of grazing intensity by livestock on the secondary sex ratio of an alpine-steppe passerine, the Isabelline Wheatear Oenanthe isabellina, on the Tibet Plateau. Offspring sex ratio of Isabelline Wheatears significantly correlated with a quadratic term -- (grazing intensity)2. The wheatears nesting in areas grazed at low intensity by mixed livestocks produced significantly more sons than those in ungrazed area (0.41 vs. 0.58, Z=-2.836, P=0.005), while brood sex ratios from other treatments (ungrazing vs. intensive grazing and low-intensity grazing vs. intensive grazing) did not differ significantly. Variation in offspring sex ratio was not related to other factors such as maternal condition, paternal condition and other two-way interactions. These results suggest that breeding birds of grasslands are sensitive to variation in habitat conditions, and provide additional evidence that grazing intensity affects avian reproduction in cryptic ways that are rarely studied. Our findings suggest that flexible management including timely rotational grazing is needed to optimize bird species reproduction and maintain ecosystem health.
Data from: Grazing pressure affects offspring sex ratio in a socially monogamous passerine on the Tibet Plateau
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Data from: Retracted: Experimental evidence that maternal corticosterone controls adaptive offspring sex ratios
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Data from: Thyroid hormone modulates offspring sex ratio in a turtle with temperature-dependent sex determination
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Data from: Persistent sex-by-environment effects on offspring fitness and sex-ratio adjustment in a wild bird population
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Data from: Male spiders control offspring sex ratio through greater production of female-determining sperm
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Male mice lacking Teshl lncRNA exhibit inactivation of Y chromosomal multicopy genes and female distortion-biased sex ratio change in offspring
GEO Series GSE162652. Mus musculus. 6 samples. Type: Expression profiling by high throughput sequencing.
Female manipulation of offspring sex ratio in a gregarious parasitoid from a two-generation approach
<p>Supplementary_Material_Sex ratio of gregarious parasitoids</p>
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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.