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592 results for “songbirds”
Data from: Introgression underlies phylogenetic uncertainty but not parallel plumage evolution in a recent songbird radiation
<p class="MsoNormal"><span>Instances of parallel phenotypic evolution offer great opportunities to understand the evolutionary processes underlying phenotypic changes. However, confirming parallel phenotypic evolution and studying its causes requires a robust phylogenetic framework. One such example is the "black-and-white wagtails", a group of five species in the songbird genus </span><em><span>Motacilla</span></em><span>: one species, the White Wagtail (</span><em><span>M. alba</span></em><span>), shows wide intra-specific plumage variation, while the four others form two pairs of very similar-looking species (African Pied Wagtail </span><em><span>M. aguimp </span></em><span>+ Mekong Wagtail </span><em><span>M. samveasnae</span></em><span><em><span> </span></em>and Japanese Wagtail </span><em><span>M. grandis</span></em><span><em><span> </span></em>+ White-browed Wagtail </span><em><span>M. maderaspatensis</span></em><span>, respectively). However, the two species in each of these pairs were not recovered as sisters in previous phylogenetic inferences. Their relationships varied depending on the markers used, suggesting that gene tree heterogeneity might have hampered accurate phylogenetic inference. Here, we use whole genome resequencing data to explore the phylogenetic relationships within this group, with a special emphasis on characterizing the extent of gene tree heterogeneity and its underlying causes. We first used multispecies coalescent methods to generate a "complete evidence" phylogenetic hypothesis based on genome-wide variants, while accounting for incomplete lineage sorting and introgression. We then investigated the variation in phylogenetic signal across the genome, to quantify the extent of discordance across genomic regions, and test its underlying causes. We found that wagtail genomes are mosaics of regions supporting variable genealogies, because of ILS and inter-specific introgression. The most common topology across the genome, supporting </span><em><span>M. alba</span></em><span> and </span><em><span>M. aguimp</span></em><span> as sister species, appears to be influenced by ancient introgression. Additionally, we inferred another ancient introgression event, between </span><em><span>M. alba</span></em><span> and </span><em><span>M. grandis</span></em><span>. By combining results from multiple analyses, we propose a phylogenetic network for the black-and-white wagtails that confirms that similar phenotypes evolved in non-sister lineages, supporting parallel plumage evolution. Furthermore, the inferred reticulations do not connect species with similar plumage coloration, suggesting that introgression does not underlie parallel plumage evolution in this group. Our results demonstrate the importance of investigation of genome-wide patterns of gene tree heterogeneity to help understanding the mechanisms underlying phenotypic evolution.</span></p>
Consequences of drought for grassland songbird reproduction - R code and data files
<p>R code and data files for a submitted manuscript on the effects of a severe drought in NE Kansas on grassland songbird reproduction</p>
Does fortune follow function? Exploring how consumer preferences drive the functional trait composition of the global songbird trade
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Data from: Concealed by darkness: interactions between predatory bats and nocturnally migrating songbirds illuminated by DNA sequencing
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Social groups with diverse personalities mitigate physiological stress in a songbird
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Songbirds of the Americas show uniform morphological evolution despite heterogeneous diversification
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Data from: MHC class II supertypes affect survival and lifetime reproductive success in a migratory songbird
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Data from: Sedentary songbirds maintain higher prevalence of haemosporidian parasite infections than migratory conspecifics during seasonal sympatry
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Data from: Heritable variation in circulating glucocorticoids and endocrine flexibility in a free-living songbird
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Hidden white and black feather layers enhance plumage coloration in tanagers and other songbirds
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Phenotypic and ecological data from: Widespread convergent morphological evolution within the largest family of songbirds
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Raw data for: No reproductive benefits of dear enemy recognition in a territorial songbird
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Motor cortex analogue neurons in songbirds utilize Kv3 subunits to generate ultranarrow spikes
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Climate change does not equally affect temporal patterns of natural selection on reproductive timing across populations in two songbird species
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Local weather and endogenous factors affect the initiation of migration in short- and medium-distance songbird migrants
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A novel neo-sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds
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Data from: Repeated experimental challenges do not shorten adult telomeres in a songbird
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Impacts of oil well drilling and operating noise on abundance and productivity of grassland songbirds
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No difference in reproductive investment or success across urban and rural breeding pairs in an urban-adapted songbird
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Mate desertion affects offspring survival, development and physiology in a songbird with multiple parental strategies
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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.