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43 results for “source community”
Plant community data at water sources, Mpala Research Centre, Kenya (2015-2017)
Data package contains four datasets of plant measurements taken at Mpala Research Centre, Laikipia County, Kenya from November 2015-September 2017. Additional code for data analysis is also provided as part of the publication `The effects of herbivore aggregations at water sources on savanna plants differ across soil and climate gradients`.
Free Open Source Communities Sustainability: Does It Make a Difference in Software Quality?
<p><strong>Context:</strong> Free and Open Source Software (FOSS) communities' ability to stay viable and productive over time is pivotal for society as they maintain the building blocks that digital infrastructure, products, and services depend on. Sustainability may, however, be characterized from multiple aspects, and less is known how these aspects interplay and impact community outputs, and software quality specifically.</p> <p><strong>Objective: </strong>This study, therefore, aims to empirically explore how the different aspects of FOSS sustainability impact software quality.</p> <p><strong>Method: </strong>16 sustainability metrics across four categories were sampled and applied to a set of 217 OSS projects sourced from the Apache Software Foundation Incubator program. The impact of a decline in the sustainability metrics was analyzed against eight software quality metrics using Bayesian data analysis, which incorporates probability distributions to represent the regression coefficients and intercepts.</p> <p><strong>Results: </strong>Findings suggest that selected sustainability metrics do not significantly affect defect density or code coverage. However, a positive impact of community age was observed on specific code quality metrics, such as risk complexity, number of very large files, and code duplication percentage. Interestingly, findings show that even when communities are experiencing sustainability, certain code quality metrics are negatively impacted.</p> <p><strong>Conclusion:</strong> Findings imply that code quality practices are not consistently linked to sustainability, and defect management and prevention may be prioritized over the former. Results suggest that growth, resulting in a more complex and large codebase, combined with a probable lack of understanding of code quality standards, may explain the degradation in certain aspects of code quality.</p>
Source Data for main text and supplemental figures for manuscript "Community assessment of methods to deconvolve cellular composition from bulk gene expression"
<p>Source Data for main text and supplemental figures for manuscript "Community assessment of methods to deconvolve cellular composition from bulk gene expression"</p>
Figure 3 in Microbial source tracking and antimicrobial resistance in one river system of a rural community in Bahia, Brazil
Figure 3. Locations and copy numbers for human- and ruminant-indicative Bacteroides spp. DNA extracted from the material retained from filtration of 500 ml was used for qPCR determination of rDNA copy number. The size of the indicated shapes in the figure is proportional to the copy number/ml at that point as indicated in the legend. Inset shows points 12 and 13 at the same scale as the main figure.
Figure 2 in Microbial source tracking and antimicrobial resistance in one river system of a rural community in Bahia, Brazil
Figure 2. Locations and concentrations of coliforms and E. coli at water collection points. A volume of water (100 µl – 1 ml) collected mid-stream was plated using the Coliscan culture system. Colonies were identified and counted at 48h. The size of the indicated shapes in the figure is proportional to the number of colonies/ml cultured as indicated in the legend. Inset shows points 12 and 13 at the same scale as the main figure.
Figure 1 in Microbial source tracking and antimicrobial resistance in one river system of a rural community in Bahia, Brazil
Figure 1. Study area, rivers and water collection sites. The collection points on the Jiquiriçá River are P1-5; collection points on the Brejões P6-8. P3 is at the junction of the 2 rivers, and P9 and P10 are from the water treatment plant and an outside faucet, respectively. Left inset – Location of Bahia state, Salvador and Jenipapo within Brazil based on Wikimedia Commons (2011). Right inset – relationship of P12 and P13 to Jenipapo. These 2 points represent the source of piped water for the community and the furthest point upstream for collection on the Brejões River, respectively. Inset modified from Wikimedia Commons (2011).
Enrichment and characterisation of a mixed-source ethanologenic community degrading the organic fraction of municipal solid waste under minimal environmental control
<p>The spread sheets in this workbook correspond to the datasets evaluating different inocula sources for ethanol (EtOH) production from the organic fraction of municipal solid waste (OMSW) at initially acid and neutral pH, and initially aerobic and anaerobic conditions.</p>
Irrigation water source matters: Saline groundwater irrigation lowers date palm root-associated fungal richness and alters their community patterns
<p>Saline groundwater irrigation is predominantly used for date palm (<em>Phoenix dactylifera</em>) cultivation in the arid regions of the Middle East and North Africa without knowing its impact on root-associated fungal (RAF) communities. We investigated the impact of irrigation water sources (freshwater <em>vs.</em> saline groundwater) on date palm RAF diversity, communities, and their assembly processes. Summarily, we show that water chemistry (pH and EC) mainly structures RAF communities, whereas water pH shapes saprotrophic and pathotrophic communities, and the higher abundance of saprotrophic RAF (i.e. <em>Acrocalymma vagum</em>) under saline groundwater irrigation, despite the higher importance of the drift process, indicates their potential role in nutrient cycling and plant growth promotion under saline conditions in arid agroecosystems.</p>
Datasets and R source code of manuscript "From behaviour to complex communities: Resilience to anthropogenic noise in a fish-induced trophic cascade" by Emilie Rojas et al.
<p>Datasets and R source code of manuscript "From behaviour to complex communities: Resilience to anthropogenic noise in a fish-induced trophic cascade" by Emilie Rojas et al.</p>
Data from: Plant community response to switchgrass (Panicum virgatum) population source in establishing prairies
Ecological restoration and revegetation efforts entail the translocation of native plant populations. Risks associated with these efforts include failure of translocated populations to establish or, conversely, such strong establishment that they excessively dominate the recipient community. The role that selective breeding plays in mediating these risks is unclear but of increasing importance as efforts to restore and establish multifunctional grasslands also increase. In a three-year, spatially replicated study, we seeded experimental prairie communities with either domesticated (cultivar) or undomesticated strains of Panicum virgatum (switchgrass), a North American C4 species under development as a biomass crop. We evaluated the composition, performance, and diversity of the recipient plant communities and compared the performance of cultivar and undomesticated switchgrass in those communities. We found little evidence that switchgrass population source affected community response. Switchgrass cultivars modestly exceeded undomesticated strains with respect to stand establishment, third-year stand density, and aboveground biomass; effect size and significance differed among sites. Our results suggest that including cultivars in ecological restorations and multifunctional grasslands may enhance success of switchgrass establishment with little risk of impairing the composition or diversity of plant communities for up to three years, as reflected in the measures used here. However, the incorporation of undomesticated switchgrass into multifunctional grasslands may enhance landscape-scale genetic variation and mitigate risks associated with gene flow between translocated and local wild switchgrass populations; more research on these dynamics is needed.
Fertilization can accelerate the pace of soil microbial community response to rest-grazing duration in the Three-river Source Region of China
<div> <div> <p><strong><span>Objectives</span></strong> </p> <p><span>Overgrazing leads to grassland degradation and productivity decline. Rest-grazing during the regreen-up period can quickly restore grassland and fertilization is a common restoration measure. Meanwhile, soil microorganisms are more sensitive indicators. Therefore, the experiment of rest-grazing time and fertilization was carried out to explore the response of soil microorganisms to rest-grazing time and fertilization measures. </span></p> <p><span><strong>Methods</strong> </span></p> <p><span>A field control experiment with rest-grazing time and fertilization as factors was conducted from the time when grass returned to green till the livestock moved to the summer pasture in Dawu Town of Maqin County.</span> <span>The primary treatment we established was the five</span> <span>rest-grazing times, including rest-grazing times of 20 days, 30 days, 40 days, 50 days, and traditional grazing was used as a check group. At the same time, the secondary treatment was nitrogen addition of 300 kg·hm<sup>-2</sup> in each primary treatment. </span></p> <p><span><strong>Results</strong> </span></p> <p><span>The results showed that: the total phospholipid fatty acid (total PLFA), actinomyces (Act) and arbuscular </span><span>mycorrhizal fungi (AMF) showed an ever-increasing biomass with the increase of rest-grazing time and the highest was at 50 days of rest-grazing, and they were all significantly higher than CK. In addition, soil microbial biomass carbon-nitrogen ratio (MBC/MBN)</span> <span>had a great influence on the change of microbial community. Applying nitrogen fertilizer can increase the maximum value of biomass of all PLFA groups and the biomass of all PLFA groups changed in an "inverted V" shape with the increase of rest-grazing time. Besides, </span><span>instead of MBC/MBN, NO<sub>3</sub><sup>-</sup>-N</span><span> was positively affected by the biomass of</span> <span>all PLFA groups, which actively regulated the trend of microbial functions. </span></p> <p><span><strong>Conclusions</strong> </span></p> <p><span>The longer rest-grazing time is more conducive to the biomass of all PLFA groups. However, applying nitrogen fertilizer could break this pattern, namely, the 30d rest-grazing would</span> <span>be beneficial to the biomass of all PLFA groups. These findings provide key information that rest-grazing during the regreen-up period is beneficial to all PLFA groups and </span><span>fertilization could change the response of microorganisms to rest-grazing</span><span>, which provides reference measures for the restoration of degraded alpine meadows.</span></p> </div> </div>
Both source and recipient range phylogenetic community structure can predict the outcome of avian introductions
<p>Competing phylogenetic models have been proposed to explain the success of species introduced to other communities. Here, we present a study predicting the establishment success of birds introduced to Florida, Hawaii, and New Zealand using several alternative models, considering species' phylogenetic relatedness to source and recipient range taxa, propagule pressure, and traits. We find consistent support for the predictive ability of source region phylogenetic structure. However, we find that the effects of recipient region phylogenetic structure vary in sign and magnitude depending on inclusion of source region phylogenetic structure, delineation of the recipient species pool, and the use of phylogenetic correction in the models. We argue that tests of alternative phylogenetic hypotheses including the both source and recipient community phylogenetic structure, as well as important covariates such as propagule pressure, are likely to be critical for identifying general phylogenetic patterns in introduction success, predicting future invasions, and for stimulating further exploration of the underlying mechanisms of invasibility.</p>
Why is my community reacting like this? Understanding reactions in open-source communities
<p>In 2016, GitHub introduced the Reactions feature to facilitate the expression of sentiments and reduce noise in communications on its platform. Recent studies indicated that developers has been adopting the feature and was observed a reduction of noise on conversations inside the platform. However, the patterns of usage and profiles of users expressing these reactions in inside their communities remain underexplored. Identifying these patterns may help maintainers to better understand members' behaviors in their communities, and researchers to build supporting tools focused on users' reactions. This paper presents an initial study to (i) understand these interactions on open-source software communities, (ii) identify types of resources that receive the most reactions, (iii) analyzing seasonal factors influencing usage, and (iv) correlating the provided reactions with the roles of developers within the community. Preliminary results indicate that users primarily react to comments in Issues, with notable periods of heightened activity. Additionally, significant differences were observed between the reactions of maintainers and other members of the community.</p>
Supplementary materials for different sources of calcium in the diet on intestinal bacterial community and function of weaned piglets
<p>Supplementary materials for different sources of calcium in the diet on intestinal bacterial community and function of weaned piglets</p>
Free Open Source Communities Sustainability: Does It Make a Difference in Software Quality?
<p> Free and Open Source Software (FOSS) communities' sustainability is important to maintain and promote access to technology and innovation. While considerable effort has been invested on the topic of FOSS sustainability, limited attention has been given to its impact on community outcomes, e.g., software quality. We conducted an empirical study to examine the influence of FOSS sustainability on software quality. We used projects' data sourced from the Apache Software Foundation Incubator. A total of 236 projects were originally selected. Our final list included a total of 217 projects after applying our exclusion criteria. We used Bayesian data analysis, which incorporates probability distributions to represent the regression coefficients and intercepts. Our findings suggest that our selected sustainability metrics do not significantly affect defect density or code coverage. However, we observed a positive impact of community age on specific code quality metrics, such as risk complexity, number of very large files, and code duplication percentage. Interestingly, our findings show that even when communities are experiencing sustainability, certain code quality metrics are negatively impacted. This implies that code quality practices are not consistently linked to sustainability, and defect management and prevention may be prioritized over the former.</p>
Fertilization can accelerate the pace of soil microbial community response to rest-grazing duration in the Three-river Source Region of China
Open the record for dataset details and reuse information.
Sources of uncertainty in DNA metabarcoding of whole communities: implications for its use in biomonitoring
Open the record for dataset details and reuse information.
Data from: Plant community response to switchgrass (Panicum virgatum) population source in establishing prairies
Open the record for dataset details and reuse information.
Both source and recipient range phylogenetic community structure can predict the outcome of avian introductions
Open the record for dataset details and reuse information.
PyonAir: An open design, open source, air quality monitor for community driven particulate matter sensing.
<p>This dataset present some of the data recorded by two low-cost PM sensors, a Plantower PMS5003 and a Sensirion SPS030 located at Southampton AURN reference station on the 2nd December 2019 between 17:00 and 22:00 during a fire that occurred in the city. It also present the data from the Fidas 200, averaged every 15min also located at the AURN station.</p> <p>The file SPS_PMS_fire.csv contain the following rows:</p> <ul> <li>date</li> <li>pm25 - PM<sub>2.5</sub> mass concentration in ug/m<sup>3</sup></li> <li>sensor - Serial number of the sensor</li> <li>site - name of the location of the sensor</li> </ul> <p>The file fidas_15min.csv contains the following rows:</p> <ul> <li>date</li> <li>PM2.5 - PM<sub>2.5</sub> mass concentration in ug/m<sup>3</sup></li> </ul> <p> </p>
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.