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193 results for “Population connectivity”
Identifying the environmental drivers of corridors and predicting connectivity between seasonal ranges in multiple populations of Alpine ibex (Capra ibex) as tools for conserving migration
<p># GPS locations of Alpine ibex</p> <p>This dataset contains migratory tracks of Alpine ibex identified using the application Migration Mapper (https://migrationinitiative.org/content/migration-mapper) and used in the work <strong>Identifying the environmental drivers of corridors and predicting connectivity between seasonal ranges in multiple populations of Alpine ibex (<em>Capra ibex</em>) as tools for conserving migration</strong></p> <p># Dataset structure</p> <p>Each row of the dataset represents a GPS location with its coordinates contained in the x (longitude) and y(latitude) columns. Coordinates are given in wgs84 (epsg 4326).<br> The column t1_ informs on the date and time the location was recorded.<br> The id and pop columns provide information about the identity of the animal and the population to which it belongs.</p> <p> </p>
Biophysical data for: Dispersive currents explain patterns of population connectivity in an ecologically and economically important fish
<p><span>How to identify the drivers of population connectivity remains a fundamental question in ecology and evolution. Answering this question can be challenging in aquatic environments where dynamic lake and ocean currents coupled with high levels of dispersal and gene flow can decrease the utility of modern population genetic tools. To address this challenge, we used RAD-Seq to genotype 959 yellow perch (<em>Perca flavescens</em>), a species with an ~40-day pelagic larval duration (PLD), collected from 20 sites circumscribing Lake Michigan. We also developed a novel, integrative approach that couples detailed biophysical models with eco-genetic agent-based models to generate 'predictive' values of genetic differentiation. By comparing predictive and empirical values of genetic differentiation, we estimated the relative contributions for known drivers of population connectivity (<em>e.g</em>., currents, behavior, PLD). For the main basin populations (<em>i.e</em>., the largest contiguous portion of the lake), we found that high gene flow led to low overall levels of genetic differentiation among populations (<em>F<sub>ST</sub></em> = 0.003). By far the best predictors of genetic differentiation were connectivity matrices that were derived from periods of time when there were strong and highly dispersive currents. Thus, these highly dispersive currents are driving the patterns of population connectivity in the main basin. We also found that populations from the northern and southern main basin are slightly divergent from one another, while those from Green Bay and the main basin are highly divergent (<em>F<sub>ST</sub></em> = 0.11). By integrating biophysical and eco-genetic models with genome-wide data, we illustrate that the drivers of population connectivity can be identified in high gene flow systems.</span></p>
Low-coverage whole genome sequencing for highly accurate population assignment: Mapping migratory connectivity in the American Redstart (Setophaga ruticilla)
<p>Understanding the geographic linkages among populations across the annual cycle is an essential component for understanding the ecology and evolution of migratory species and for facilitating their effective conservation. While genetic markers have been widely applied to describe migratory connections, the rapid development of new sequencing methods, such as low-coverage whole genome sequencing (lcWGS), provides new opportunities for improved estimates of migratory connectivity. Here, we use lcWGS to identify fine-scale population structure in a widespread songbird, the American Redstart (<em>Setophaga</em> <em>ruticilla</em>), and accurately assign individuals to genetically distinct breeding populations. Assignment of individuals from the nonbreeding range reveals population-specific patterns of varying migratory connectivity. By combining migratory connectivity results with demographic analysis of population abundance and trends, we consider full annual cycle conservation strategies for preserving numbers of individuals and genetic diversity. Notably, we highlight the importance of the Northern Temperate-Greater Antilles migratory population as containing the largest proportion of individuals in the species. Finally, we highlight valuable considerations for other population assignment studies aimed at using lcWGS. Our results have broad implications for improving our understanding of the ecology and evolution of migratory species through conservation genomics approaches.</p>
Data from: Forest connectivity boosts pollen flow among populations of the oil-producing Nierembergia linariifolia
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Data from: Population structure, genetic connectivity, and adaptation in the Olympia oyster (Ostrea lurida) along the west coast of North America
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Data from: Connections across open water: A bi-organelle, genomics-scale assessment of Atlantic-wide population dynamics in a pelagic, endangered apex predator shark (Isurus oxyrinchus)
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Data from: Population connectivity patterns of genetic diversity, immune responses and exposure to infectious pneumonia in a metapopulation of desert bighorn sheep
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Marine stepping-stones: Connectivity of Mytilus edulis populations between offshore energy installations
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Pronghorn population genomics show connectivity at the core of their range
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Data from: Testing models of refugial isolation, colonization and population connectivity in two species of montane salamanders
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Population structure and connectivity among coastal and freshwater Kelp Gull (Larus dominicanus) populations from Patagonia
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Biophysical larval dispersal models of observed bonefish (Albula vulpes) spawning events in Abaco, The Bahamas: An assessment of population connectivity and ocean dynamics
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Low-coverage whole genome sequencing for highly accurate population assignment: Mapping migratory connectivity in the American Redstart (Setophaga ruticilla)
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Data from: Small but connected islands can maintain populations and genetic diversity under climate change
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Data from: Population structure, connectivity and demographic history of an apex marine predator, the bull shark Carcharhinus leucas
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Data from: Mechanistic home range capture–recapture models for the estimation of population density and landscape connectivity
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Biophysical data for: Dispersive currents explain patterns of population connectivity in an ecologically and economically important fish
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Connectivity among thermal habitats buffers the effects of warm climate on life-history traits and population dynamics
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Pairing functional connectivity with population dynamics to prioritize corridors for Southern California spotted owls
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High connectivity at abyssal depths: Genomic and proteomic insights into population structure of the pan-Atlantic deep-sea bivalve Ledella ultima (E. A. Smith, 1885)
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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.