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803 results for “population (urban)”
Figure 5 in Assessing pollinator richness on urban-grown mountain mint (Pycnanthemum spp.) populations
Figure 5. An evenness index of flower visitation on Pycnanthemum tenuifolium across the 3-week monitoring period. Each taxon is plotted by the number of sites visited each week.
SARS CoV2 Seroprevalence in Rural and Urban Populations In Ghana
<p>Results of population-based age stratified seroepidemiological investigation in Ghana</p>
Dataset for: Factors associated with self-reported diagnosed asthma in urban and rural Malawi: observations from a population-based study of 3 non-communicable diseases
<p>This dataset was used in analyses reported on the in paper with the same title, published in PLOS Global Health.</p>
Data from: Trapped within the city: Integrating demography, time since isolation and population-specific traits to assess the genetic effects of urbanization
Urbanization is a severe form of habitat fragmentation that can cause many species to be locally extirpated and many others to become trapped and isolated within an urban matrix. The role of drift in reducing genetic diversity and increasing genetic differentiation is well recognized in urban populations. However, explicit incorporation and analysis of the demographic and temporal factors promoting drift in urban environments are poorly studied. Here, we genotyped 15 microsatellites in 320 fire salamanders from the historical city of Oviedo (Est. 8th century) to assess the effects of time since isolation, demographic history (historical effective population size; Ne) and patch size on genetic diversity, population structure and contemporary Ne. Our results indicate that urban populations of fire salamanders are highly differentiated, most likely due to the recent Ne declines, as calculated in coalescence analyses, concomitant with the urban development of Oviedo. However, urbanization only caused a small loss of genetic diversity. Regression modelling showed that patch size was positively associated with contemporary Ne, while we found only moderate support for the effects of demographic history when excluding populations with unresolved history. This highlights the interplay between different factors in determining current genetic diversity and structure. Overall, the results of our study on urban populations of fire salamanders provide some of the very first insights into the mechanisms affecting changes in genetic diversity and population differentiation via drift in urban environments, a crucial subject in a world where increasing urbanization is forecasted.
Leaf traits Plantago major, urban sidewalk, city park and nature reserve populations
<p>These measurements include the raw data on the petiole and lamina length and width of Plantago major populations growing within city parks, urban sidewalks or nature reserves in the Netherlands. The data was collected between 12-04-2021 and 07-05-2021 by Roman Beukema. The dataset includes both GPS longitude and latitude locations from each sample, as well as the lamina and petiole length and width in millimeters precise.</p> <p> </p>
Urbanization reduces genetic connectivity in bobcats (Lynx rufus) at both intra- and inter-population spatial scales
<p>Urbanization is a major factor driving habitat fragmentation and connectivity loss in wildlife. However, the impacts of urbanization on connectivity can vary among species and even populations due to differences in local landscape characteristics, and our ability to detect these relationships may depend on the spatial scale at which they are measured. Bobcats (<i>Lynx rufus</i>) are relatively sensitive to urbanization and the status of bobcat populations is an important indicator of connectivity in urban coastal southern California. We genotyped 271 bobcats at 13,520 SNP loci to conduct a replicated landscape resistance analysis in five genetically distinct populations. We tested urban and natural factors potentially influencing individual connectivity in each population separately, as well as study-wide. Overall, landscape genomic effects were most frequently detected at the study-wide spatial scale, with urban land cover (measured as impervious surface) having negative effects and topographic roughness having positive effects on gene flow. The negative effect of urban land cover on connectivity was also evident when populations were analyzed separately despite varying substantially in spatial area and the proportion of urban development, confirming a pervasive impact of urbanization largely independent of spatial scale. The effect of urban development was strongest in one population where stream habitat had been lost to development, suggesting that riparian corridors may help mitigate reduced connectivity in urbanizing areas. Our results demonstrate the importance of replicating landscape genetic analyses across populations and considering how landscape genetic effects may vary with spatial scale and local landscape structure.</p>
FIG. 1 in Parasitism by bat flies on an urban population of Cynopterus brachyotis in Singapore
FIG. 1. Map of Singapore with the study area enlarged, showing the approximate areas covered by secondary forest in Kent Ridge Road and Kent Ridge Park
FIG. 3 in Parasitism by bat flies on an urban population of Cynopterus brachyotis in Singapore
FIG. 3. Scatter-plot of number of bat flies versus an index of bat body condition (quotient of body mass over forearm length). Circles indicate adult individuals and triangles indicate juveniles
FIG. 2 in Parasitism by bat flies on an urban population of Cynopterus brachyotis in Singapore
FIG. 2. Histograms showing frequency of L. f. ferrarii counts on parasitized C. brachyotis individuals by host (A) sex, (B) age, and (C) reproductive status
Data from: Environmental filtering of life-history trait diversity in urban populations of Arabidopsis thaliana
<p>The challenges to which plants are exposed in urban environments represent, in miniature, the challenges plants face as a result of global environmental change. Hence, urban habitats provide a unique opportunity to assess whether processes of local adaptation are taking place despite the short temporal and geographical scales that characterize the Anthropocene. We quantified the ecological diversity of urban habitats hosting A. thaliana populations. Using plant community indicators, we show that these patches differ in their levels of soil nutrient content and disturbance. Accordingly, plants in each patch displayed a range of flowering time, size and fitness. Using a deep sampling approach coupled with reduced genome-sequencing, we demonstrate that most individuals can be assigned to a limited set of clonal lineages; the genetic diversity of these lineages is a sample of the diversity observed in western European populations of the species, indicating that established urban populations originate from a broad regional pool of lineages. We assessed the genetic and phenotypic diversity of these lineages in a set of common garden experiments. We report marked genetic differences in life-history traits, including time of primary and secondary dormancy as well as of flowering. These genetic differences in life-history traits are not randomly distributed but sorted out by ecological differences among sites of origin.</p> <p>Synthesis: Our study shows that the genetically diverse phenology of a regional A. thaliana gene pool is not randomly distributed but filtered by heterogeneity in the urban environment. To out knowledge, this report is the first to show a pattern indicative of environmental filtering enhancing local genetic adaptation within urban environments. We conclude that environmental filtering helps maintain functional diversity within species.</p>
Efficacy of Raltegravir in a Large Urban HIV Clinical Population in Milan
ClinicalTrials.gov study NCT01467349. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Cardiovascular Risk Factors in an Ambulatory Urban Patient Population
ClinicalTrials.gov study NCT00486993. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Prevention of Cardiovascular Disease Using a Single PolyPill in an Urban Population - Focus on Liver-Related Variables.
ClinicalTrials.gov study NCT01245608. IPD Sharing: NO. Countries: 1. Publications: 4.
Text Messaging Intervention to Improve Retention in Care and Virologic Suppression in an Urban HIV-Infected Population
ClinicalTrials.gov study NCT01917994. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Assessment of Cultural Acceptability of Long Acting Contraception in a Diverse, Urban Population
ClinicalTrials.gov study NCT03486743. IPD Sharing: NO. Countries: 1. Publications: 15.
Involving Community Pharmacies in Improving Asthma Outcomes in an Urban Pediatric Population
ClinicalTrials.gov study NCT00424125. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Pharmacokinetics of Oral Morphine and Pharmacogenomics of CYP2D6 and UGT2B7, in an Urban Pediatric Population Presenting for Elective Surgery
ClinicalTrials.gov study NCT01071499. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Implementing the NYU Electronic Patient Visit Assessment (ePVA) for Head and Neck Cancer In Rural and Urban Populations
ClinicalTrials.gov study NCT06030011. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: Urbanization drives the evolution of parallel clines in plant populations
Open the record for dataset details and reuse information.
Data from: Rapid, pervasive genetic differentiation of urban white-footed mouse (Peromyscus leucopus) populations in New York City
Open the record for dataset details and reuse information.
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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.