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Dataset results
518 results for “community functions.”
Data from: Nitrogen enrichment and warming shift community functional composition via distinct mechanisms: the role of intraspecific trait variability and species turnover
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Data from: Cross-biome metagenomic analyses of soil microbial communities and their functional attributes
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Data from: Initial colonization, community assembly, and ecosystem function: fungal colonist traits and litter biochemistry mediate decay rate
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Data from: Deterministic tropical tree community turnover: evidence from patterns of functional beta diversity along an elevational gradient
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The Cryptic impacts of invasion: functional homogenization of tropical ant communities by invasive fire ants
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Data from: Evidence of functional species sorting by rainfall and biotic interactions: A community monolith experimental approach
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Vegetation complexity and nesting resource availability predict bee diversity and functional traits in community gardens
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Mechanisms driving the soil organic matter decomposition response to nutrient enrichment:Nutrient Network. A cross-site investigation of bottom-up control over herbaceous plant community dynamics and ecosystem function.
This experiment is one implementation of a globally distributed experiment, known as the Nutrient Network. At Cedar Creek, as in over 70 other sites in grasslands around the world, the experiment aims to describe impacts of increased nutrients (nitrogen, phosphorus, potassium, sulfur and other metals) and decreased herbivory (removal of mammals by fencing). Two overarching questions are being explored with these manipulations: 1. To what extent are plant production and diversity co-limited by multiple nutrients in herbaceous-dominated communities? 2. Under what conditions do grazers or fertilization control plant biomass, diversity, and composition? By utilizing identical protocols at diverse grassland sites around the world, NutNet aims to uncover both the generalities in ecosystem functioning, and the contingencies or differences which can obscure those common mechanisms. In addition to the standard NutNet protocol, e247 includes an additional low Nitrogen gradient (1 gram Nitrogen per meter squared per year and 5 grams Nitrogen per meter squared per year in addition to the standard 10 grams Nitrogen per meter squared per year).
Overall functional diversity of microbial communities in three full-scale activated sludge bioreactors
GEO Series GSE53744. Archaea; activated sludge metagenome; Bacteria; Eukaryota; Viruses. 9 samples. Type: Genome variation profiling by array.
Microbial community functional structures in wastewater treatment plants as characterized by GeoChip
GEO Series GSE54055. Eukaryota; Viruses; Bacteria; Archaea; activated sludge metagenome. 12 samples. Type: Other.
Survey functional genes in Arctic marine sediment communities
GEO Series GSE117831. Bacteria; Eukaryota; Viruses; synthetic construct; marine sediment metagenome; Archaea. 2 samples. Type: Other.
A metagenomic study revealing unexpectedly diverse functional groups in microbial communities of deep-ground oil
GEO Series GSE55293. Bacteria; uncultured bacterium. 9 samples. Type: Other.
Environmental DNA effectively captures functional diversity of coastal fish communities
Robust assessments of taxonomic and functional diversity are essential components of research programs aimed at understanding current biodiversity patterns and forecasting trajectories of ecological changes. Yet, evaluating marine biodiversity along its dimensions is challenging and dependent on the power and accuracy of the available data collection methods. Here we combine three traditional survey methodologies [Underwater Visual Census strip transects (UVCt), Baited Underwater Videos (BUVs) and Small Scale Fishery catches (SSFc)], and one novel molecular technique [eDNA metabarcoding (eDNA) – 12S rRNA and Cytochrome Oxidase Subunit 1 (COI)] to investigate their efficiency and complementarity in assessing fish diversity. We analysed 1,716 multi-method replicates at a basin scale to measure taxonomic and functional diversity of Mediterranean fish assemblages. Taxonomic identities were investigated at species, genus and family level. Functional identities were assessed using combinations of morphological, behavioral and trophic traits. We show that: i) SSFc provided the higher taxonomic diversity estimates followed by eDNA, and then UVCt and BUV; ii) eDNA was the only method able to gather the whole spectrum of considered functional traits, showing the most functionally diversified and least redundant fish assemblages; iii) the eDNA effectiveness in describing functional structure reflected its lack of selectivity toward any considered functional trait. Our findings suggest that the reach of environmental DNA analysis stretches beyond taxon detection efficiency and provides new insights about the potential of metabarcoding in ecological studies.
Experimental manipulation of selfish genetic elements links genes to microbial community function
<p>Microbial communities underpin earth’s biological and biogeochemical processes, but their complexity hampers understanding. Here we draw upon predictions from the theory of selfish genetic elements (SGEs), combined with approaches from experimental evolution, comparative metagenomics and biochemistry, and show how naturally occurring SGEs can be used to manipulate genes that underpin community function. Communities comprising hundreds of bacterial genera established from garden compost were propagated with bi-weekly transfer for one year in nitrogen-limited minimal medium with cellulose (paper) as sole carbon source. At each transfer, SGEs from one set of independent communities were collected, pooled and redistributed among this same set of communities (horizontal treatment). A control was included in which SGEs never moved beyond the community in which they were originally present (vertical treatment). SGEs along with genes of ecological relevance were rapidly amplified across horizontal communities and their dynamics tracked. Enrichment of genes implicated in nitrogen metabolism, and particularly ammonification, led to biochemical assays that showed a significant functional difference between communities subject to horizontal versus vertical treatments. This simple experimental strategy offers a powerful new approach for unravelling dynamical processes underpinning microbial community function.</p>
Plant litter influences the temporal stability of plant community biomass in an alpine meadow by altering the stability and asynchrony of plant functional groups
<p>The stability of a plant community is defined as its ability to resist and be resilient to changes. Plant community stability can be driven by a range of external perturbations as well as by plant community traits. Plant litter traits (species or mass) are widely recognized drivers for plant community composition and diversity changes in grasslands. Yet, the effects of litter traits on the temporal stability of plant communities in natural grasslands are largely unknown. </p> <p>In this study, a field experiment was conducted at an alpine meadow on the Qinghai Tibetan Plateau to quantify the effects of litter from <i>Elymus nutans</i>, <i>Kobresia setchwanensis</i> and <i>Ligularia virgaurea</i> on the temporal stability of plant community biomass at five different mass levels (0, 100, 200, 400 and 600 g m<sup>−2</sup>). The experiment was conducted over the period from the pre-growth to peak–growth stage between 2017 and 2019, during which temporal stability of plant community biomass was assessed in relation to plant community characteristics.</p> <p>The effects of litter on temporal stability of plant community biomass were mainly driven by the litter mass rather than the litter species. A hump-shaped relationship between litter mass and temporal stability of plant community biomass was found, with the highest stability under intermediate litter mass treatment (200 g m<sup>−2</sup>). A structural equation model identified this response was driven by the indirect effects of litter mass on the temporal stability of the biomass of the dominant (forbs) and subdominant (grasses) functional groups in the community and the asynchrony of plant functional groups.</p> <p>The results of this study demonstrate that plant litter traits are important drivers for maintaining plant community stability in natural grasslands, highlighting the importance of grassland management decisions (e.g., grazing intensity) relating to the quantity and quality of litter accumulation. </p>
Effects of Exercise Training on Functional Physical Fitness, Balance and Walking in the Community-dwelling Older Adults
ClinicalTrials.gov study NCT04812587. IPD Sharing: NO. Countries: 1. Publications: 0.
Fit for Function: A Community Wellness Program for Persons With Stroke
ClinicalTrials.gov study NCT01194102. IPD Sharing: Not stated. Countries: 1. Publications: 0.
The Efficacy of a Technology-Assisted Block Training Program on Cognitive Function, Hand Dexterity, and Grip Strength in Community-Dwelling Older Adults: A Mixed-Methods Research
ClinicalTrials.gov study NCT07315724. IPD Sharing: NO. Countries: 1. Publications: 0.
Physical Activity to Improve Physical Function in a Community-Based Health Ministry
ClinicalTrials.gov study NCT04203030. IPD Sharing: NO. Countries: 1. Publications: 0.
Community-based Physical Fitness Exercise on the Older Adults' Functional Fitness and Adherence to Physical Activity
ClinicalTrials.gov study NCT05081505. IPD Sharing: Not stated. Countries: 1. Publications: 0.
ScienceDex guides
Understand access before you commit
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.