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51 results for “natural community data”
Data from: Deconstructing Darwin’s naturalization conundrum in the San Juan Islands using community phylogenetics and functional traits
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Data from: Low functional diversity promotes niche changes in natural island pollinator communities
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Data from: Predictors of Phytophthora diversity and community composition in natural areas across diverse Australian ecoregions
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Data from: Differential responses of marine communities to natural and anthropogenic changes
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Data from: Harvesting biofuel grasslands has mixed effects on natural enemy communities and no effects on biocontrol services
1.Perennial bioenergy systems, such as switchgrass and restored prairies, are alternatives to commonly used annual monocultures such as maize. Perennial systems require lower chemical input, provide greater ecosystem services such as carbon storage, greenhouse gas mitigation, and support greater biodiversity of beneficial insects. However, biomass harvest will be necessary in managing these perennial systems for bioenergy production, and it is unclear how repeated harvesting might affect ecosystem services. 2.In this study, we examined how repeated production-scale harvesting of diverse perennial grasslands influences vegetation structure, natural enemy communities (arthropod predators and parasitoids), and natural biocontrol services in two states (Wisconsin and Michigan, USA) over multiple years. 3.We found that repeated biomass harvest reduced litter biomass and increased bare ground cover. Some natural enemy groups, such as ground-dwelling arthropods, decreased in abundance with harvest whereas others, such as foliar-dwelling arthropods increased in abundance. The disparity in responses is likely due to how different taxonomic groups utilize vegetation and differences in dispersal abilities. 4.At the community level, biomass harvest altered community composition, increased total arthropod abundance, and decreased evenness but did not influence species richness, diversity, or biocontrol services. Harvest effects varied with time, diminishing in strength both within the season (for total abundance and evenness), across seasons (for evenness), or were consistent throughout the duration of the study (for community composition). Greater functional redundancy and compensatory responses of the different taxonomic groups may have buffered against the potentially negative effects of harvest on biocontrol services. 5.Synthesis and applications. Our results show that in the short-term, repeated harvesting of perennial grasslands (when insect activity is low) consistently altered vegetation structure but had mixed effects on natural enemy communities and no discernable effects on biocontrol services. However, the long-term effects of repeated harvesting on vegetation structure, natural enemies, and other arthropod-derived ecosystem services such as pollination and decomposition remain largely unknown.
Data from: Comparison of Natural and Nonnative Two-Species Communities of Anolis Lizards
Human-mediated colonizations present an informative model system for understanding assembly of organismal communities. However, it is unclear whether communities including naturalized species are accurate analogs of natural communities or unique combinations not present in nature. I compared morphology and phylogenetic structure of natural and naturalized two-species communities of Anolis lizards. Natural communities are phylogenetically clustered, whereas naturalized communities show no significant phylogenetic structure. This result likely reflects differences in colonization pools for these communities—that is, invasion from anywhere for naturalized communities but from proximal and thus phylogenetically close lineages in natural communities. Both natural and naturalized communities each include pairs of species that are significantly similar to each other in morphology, and both sets of communities are composed of species that possess traits of good colonizers. These similarities suggest that the formation of natural and naturalized communities may be at least partially governed by similar processes. Human-mediated invasions may be credibly viewed as modern incarnations of natural colonizations in this case.
Input data and Supplementary Results for "Community-level signatures of ecological succession in natural bacterial communities"
<p> </p> <p><strong>README<br> ======</strong></p> <p><br> This file describes the content of the different files included in this repository to<br> reproduce results from [1] and some of its supplementary results.</p> <p> </p> <p><strong>## Input files ##</strong></p> <p><strong>* 20151016_Functions_remainder.csv</strong></p> <p> Functions measured in [2]. The relevant quantities used in [1] are labelled with "7", and include:<br> <br> * Community: Id of the sample<br> * Replicate<br> * Plate<br> * mgCO2.7: CO2 measured along 7 days of experiment<br> * CPM7: Cell counts at the end of the experiment<br> * pgRPC.7: CO2 per cell<br> * ATP7: ATP measured (nM)<br> * mG7: beta glucosidase (mM)<br> * mN7: beta chitinase (mM)<br> * mX7: xylosidase (mM)<br> * mP7: phosphatase (mM)<br> <br> <strong>* samples_metadata_time0.tsv</strong></p> <p> * Samples: Id of the sample <br> * Part.dates: Date of sampling<br> * Part.GPS.PAM: Optimal sampling sites <br> * Part.SparCC.PAM.t0: Optimal partition using SparCC<br> * Part.SJD.PAM.t0: Optimal partition using Jensen-Shannon Divergence<br> * Part.Dir.t0: Optimal partition using Dirichlet mixtures<br> * Part.month: Month in which the community was sampled<br> <strong>* Dist_GPS-Haversine.dat</strong></p> <p> Haversine (spatial) distances between samples</p> <p><strong>* corMat-SparCC_20151016_OTU_remainder.clean.samples.txt</strong></p> <p> Matrix of correlations between samples computed with SparCC<br> <br> <strong>* distMat_ShannonJensen_Samples_Time0.clean.dat</strong></p> <p> Distance matrix computed with Jensen-Shannon divergence.</p> <p> </p> <p><br> <strong>## Supplementary results ##</strong></p> <p><strong>* SEMmodels.zip</strong></p> <p> Results for the Structural Equation Models analysed. The structure of the folders follows the one<br> available at the repository of the [project ](https://github.com/apascualgarcia/TreeHoles_descriptive).<br> <br> <strong>* TaxaSummaries.zip</strong></p> <p> The file contains one folder for each community-class, with matrices in different formats (biom and txt) computing the relative abundances of the OTUs at different taxonomic levels (labelled L2 being the proxy for Phylum to L6, the proxy of species). These matrices can be visualized interactively opening with a web browser the files area_charts.html.</p> <p><strong>#### References ####</strong></p> <blockquote> <p> [1] Pascual-García, A., & Bell, T. (2019). Community-level signatures of ecological succession in natural bacterial communities. Nature Communications (In press)</p> </blockquote> <blockquote> <p> [2] Rivett, Damian W., and Thomas Bell. Abundance determines the functional role of bacterial phylotypes in complex communities." Nature microbiology 3.7 (2018): 767.</p> </blockquote> <p> </p>
Data from: Temperature and consumer type dependencies of energy flows in natural communities
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Data from: Exploring the nature of ecological specialization in a coral reef fish community: morphology, diet, and foraging microhabitat use
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Data from: Comparison of Natural and Nonnative Two-Species Communities of Anolis Lizards
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Data from: Harvesting biofuel grasslands has mixed effects on natural enemy communities and no effects on biocontrol services
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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)
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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.