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247 results for “sexual reproduction”
Range expansions of sexual versus asexual organisms: Effects of reproductive assurance and migration load
<p>It is generally considered that sexual organisms show faster evolutionary adaptation than asexual organisms because sexuals can accumulate adaptive mutations through recombination. Yet empirical evidence often shows that the geographic range size of sexual species is narrower than that of closely-related asexual species, which may seem as if asexuals can adapt to more varied environments. Two potential explanations for this apparent contradiction considered by existing theory are reproduction assurance and migration load. Here, we consider both reproductive assurance and migration load within a single model to comparatively examine their effects on range expansions of sexuals and asexuals across an environmental gradient. The model shows that higher dispersal propensity decreases sexuals' disadvantage in reproductive assurance while increasing their disadvantage in migration load. Moreover, lower mutation rate constrains adaptation more strongly in asexuals than in sexuals. Thus, high dispersal propensity and high mutation rates promote that asexuals have wider range sizes than sexuals. Intriguingly, our model reveals that sexuals can have wider geographic range sizes than asexuals under low dispersal propensity and low mutation rates, a pattern consistent with a few exceptional empirical cases. Combining reproductive assurance and migration load provides a useful perspective to better understand the relationships between species' mating systems and their geographic ranges.<span><br></span></p>
Self-efficacy and Knowledge (SEEK) Trial to Improve Sexual Reproductive Health and Well-being for Syrian Refugee Women and Girls in Lebanon
ClinicalTrials.gov study NCT07008950. IPD Sharing: NO. Countries: 1. Publications: 1.
Youth-friendly Sexual and Reproductive Healthcare Pilot in Mumbai, India
ClinicalTrials.gov study NCT04307849. IPD Sharing: NO. Countries: 1. Publications: 3.
We Are Here Now: a Multi-level, Multicomponent Sexual and Reproductive Health Intervention for American Indian Youth
ClinicalTrials.gov study NCT03694418. IPD Sharing: NO. Countries: 1. Publications: 4.
Cups or Cash for Girls Trial to Reduce Sexual and Reproductive Harm and School Dropout
ClinicalTrials.gov study NCT03051789. IPD Sharing: YES. Countries: 1. Publications: 8.
Data from: Colourful network: Pair-bonding temporal dynamics involve sexual signals and impact reproduction
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Range expansions of sexual versus asexual organisms: Effects of reproductive assurance and migration load
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Viviparity is associated with larger female size and higher sexual size dimorphism in a reproductively bimodal lizard
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Data from: Weak premating reproductive isolation despite divergence in secondary sexual traits in the Variable Seedeater
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Assisted sexual reproduction of Acropora cervicornis for active restoration on Florida’s Coral Reef
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Data from: A single episode of sexual reproduction can produce large variation in population growth rates under dual stressors
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Data from: Mimetic females do not bear reproductive costs: Challenging the sexual selection hypothesis in female-limited mimetic polymorphism in butterflies
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Directed endozoochorous dispersal by scavengers facilitate sexual reproduction in otherwise clonal plants at cadaver sites
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Imperiled wanderlust lichens in steppe habitats of western North America comprise geographically structured mycobiont lineages and a reversal to sexual reproduction within this asexual clade - Supplementary material
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Data from: Parthenogenetic vs. sexual reproduction in oribatid mite communities
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Data from: Male rock lizards may compensate reproductive costs of an immune challenge affecting sexual signals
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Exploring the effects of extreme polyandry on estimates of sexual selection and reproductive success
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Data from: Rare sexual reproduction by females of “obligate parthenogenetic” lineages of Daphnia cf. pulex
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Density, parasitism, and sexual reproduction are strongly correlated in lake Daphnia populations
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Variation in body size and sexual size dimorphism in the most widely-ranging lizard: testing the effects of reproductive mode and climate
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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.
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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.