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8 results for “mate discrimination”
Males discriminate between substrate-borne cues of conspecific females based on age and mating status in the jumping spider, Habronattus brunneus
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Data from: Mechanisms of kin discrimination inferred from pedigrees and the spatial distribution of mates
Where animals avoid inbreeding, different mechanisms of kin discrimination can leave different "signatures" in the patterns of observed mate relationship. For example, consider a species with no paternal care. If females avoid mating with familiar individuals, one would expect a deficit of offspring whose parents are maternal half-siblings, but paternal half-siblings would be unfamiliar with each other and thus mate at the frequency expected by chance. If spatial cues are used to avoid inbreeding, females would be expected to produce few offspring with males (even unrelated males) living near the female's birth site. We searched for these and other signatures with data from a long-term study of bannertailed kangaroo rats Dipodomys spectabilis in Arizona, USA, using a combination of intensive censusing, mapping of available dens, microsatellite-based parentage determination, and a randomization routine that determines the numbers of offspring expected if females in the population mate indiscriminately among the males available to them. The data are consistent with the hypothesis that kangaroo rats discriminate kin by association, rather than by using spatial cues or self-referential phenotype matching. Our randomization routine also demonstrates that in this species, dispersal alone is not particularly effective at eliminating opportunities for inbreeding. Our approach can be applied wherever the spatial distribution of individual mates and their pedigree relationships are known, and should be widely applicable as a means of assessing the degree to which both kin recognition and dispersal influence inbreeding.
Data from: Non-nest mate discrimination and clonal colony structure in the parthenogenetic ant Cerapachys biroi
Understanding the interplay between cooperation and conflict in social groups is a major goal of biology. One important factor is genetic relatedness, and animal societies are usually composed of related but genetically different individuals, setting the stage for conflicts over reproductive allocation. Recently, however, it has been found that several ant species reproduce predominantly asexually. Although this can potentially give rise to clonal societies, in the few well-studied cases, colonies are often chimeric assemblies of different genotypes, due to worker drifting or colony fusion. In the ant Cerapachys biroi, queens are absent and all individuals reproduce via thelytokous parthenogenesis, making this species an ideal study system of asexual reproduction and its consequences for social dynamics. Here, we show that colonies in our study population on Okinawa, Japan, recognize and effectively discriminate against foreign workers, especially those from unrelated asexual lineages. In accord with this finding, colonies never contained more than a single asexual lineage and average pairwise genetic relatedness within colonies was extremely high (r = 0.99). This implies that the scope for social conflict in C. biroi is limited, with unusually high potential for cooperation and altruism.
Data from: Strong, but incomplete, mate choice discrimination between two closely related species of paper wasp
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Data from: Mechanisms of kin discrimination inferred from pedigrees and the spatial distribution of mates
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Data from: Non-nest mate discrimination and clonal colony structure in the parthenogenetic ant Cerapachys biroi
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Data from: Reinforcement shapes clines in female mate discrimination in Drosophila subquinaria
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Data from: Female discrimination thresholds frequently exceed local male display variation: implications for mate choice dynamics and sexual selection
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.