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158 results for “metacommunity”
Drivers of zooplankton dispersal in a pond metacommunity
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Data from: Propagule pressure and native community connectivity interact to influence invasion success in metacommunities
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Data from: Complex temporal dynamics of insect metacommunities along a tropical elevational gradient
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A patch-dynamic metacommunity perspective on the persistence of mutualistic and antagonistic bipartite networks
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Raw sequencing data for assembly processes inferred from eDNA surveys of a pond metacommunity are consistent with known species ecologies
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Data from: As time goes by: 20 years of changes in the aquatic macroinvertebrate metacommunity of Mediterranean river networks
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Niche and neutral-based processes differ in importance for common and rare species in a metacommunity of anurans in subtropical grasslands
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Scaling of biological rates with body size as a backbone in the assembly of metacommunity biodiversity
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Multitrophic metacommunity dataset, with metapopulation level butterfly data, in addition to predation pressure and floral abundance
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Community metabarcoding reveals the relative role of environmental filtering and spatial processes in metacommunity dynamics of soil microarthropods across a mosaic of montane forests
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Isolation drives species gains and losses of insect metacommunities over time in a mountaintop forest archipelago
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Drivers of metacommunity dynamics in river-floodplain fish: A path modeling approach
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Data from: Large-scale variation in biodiversity–ecosystem functioning (BEF) relationships in aquatic metacommunities on terrestrial islands
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The effects of temperature and dispersal on species diversity in natural microbial metacommunities
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Dataset of urban butterfly metacommunities and floral richness in Ottawa, Canada
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Data from: Partitioning multiple facets of beta diversity in a tropical stream macroalgal metacommunity
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A metacommunity approach for detecting species influenced by mass effect
<p>1. Mass effect, allowing species to persist in unfavourable habitats, and dispersal limitation, preventing species from reaching favourable habitats, are the two major dispersal processes. While dispersal limitation can be detected by experimental or modeling techniques, mass effect is more challenging to evaluate, which hampers our ability to disentangle the influence of the environment vs. dispersal on species distribution. This is undesirable for biomonitoring programs built on known species-environment relationships.</p> <p>2. We developed an approach for detection of species influenced by mass effect. We tested it on stream diatoms, a widely used taxonomic group for stream biomonitoring, from four French watersheds. This approach combined (1) an appropriate spatial framework, the Asymmetric Eigenvector Map (AEM), used in species distribution modeling to measure the relative influence of dispersal vs. niche processes, (2) an analysis of negative co-occurrence patterns to separate mass effect from dispersal limitation, and (3) a measurement of niche breadths to distinguish between non-spatially structured generalists and species influenced by mass effect.</p> <p>3. We propose that species characterized by low negative co-occurrence values, a high correlation to spatial factors and average to low niche breadths are sensitive to mass effect.</p> <p>4. Synthesis and applications: We suggest that the sensitivity of species towards mass effect should represent a new ecological trait to be considered for fundamental and applied issues concerning ecology and water quality assessment. Almost all of the species identified here as influenced by mass effect are contributing to the calculation of different diatom-based indices (e.g., Biological Diatom Index or Specific Pollution-sensitivity Index) and should be treated with caution when assigning ecological status classes to water bodies.</p>
Data from: Experimental demonstration of the importance of keystone communities for maintaining metacommunity biodiversity and ecosystem functioning
<p>As local communities within a metacommunity may differ considerably in their contributions to biodiversity and ecosystem functioning, it has been suggested that conservation priority should be given to disproportionately important local communities (i.e., keystone communities). However, we know little about what characterizes a keystone community. Using laboratory protist microcosms as the model system, we examined how the environmental uniqueness and location of a local community affect its contributions to the metacommunities. We found that the removal of local communities with unique environmental conditions, which supported endemic species, reduced regional-scale diversity, qualifying them as regional-scale keystone communities. In addition, the local communities possessing unique environmental conditions had greater impacts on ecosystem functions, including biovolume production and particulate organic matter decomposition. We also found that keystone communities for biovolume production were not keystone for organic matter decomposition, and vice versa. Our study, therefore, demonstrates the important role of keystone communities in maintaining biodiversity and functioning of metacommunities.</p>
Freshwater zooplankton metapopulations and metacommunities respond differently to environmental and spatial variation data files
<p>We used this data to examine how crustacean zooplankton and rotifer species’ metapopulation genetic structure and metacommunities respond to environmental and spatial variation both within and across four regions of boreal Canada (see Martin et al. in press, Freshwater zooplankton metapopulations and metacommunities respond differently to environmental and spatial variation, Ecology).</p> <p>Whole community zooplankton samples were collected from 113 lakes from four environmentally, geologically, and geographically distinct regions of Québec, Canada. Each lake was sampled once, and the bulk zooplankton samples were sequenced using metabarcoding targeting the cytochrome c oxidase subunit I (COI) mitochondrial gene region. Sequences were clustered to species based on 3% OTUs and within species-variation was captured based on ASVs. Read abundances were then normalized using rarefaction to the lowest library to accommodate differences in sequencing depth across sites. In addition 16 environmental variables plus two spatial variables were used to capture abiotic variation between lakes. The data files include the ASV sequences, OTU and taxonomic assignment, and site variables.</p>
Data from: Mammal diversity and metacommunity dynamics in urban green spaces: implications for urban wildlife conservation
<p>As urban growth expands and natural environments fragment, it is essential to understand the ecological roles fulfilled by urban green spaces. To evaluate how urban green spaces function as wildlife habitat, we estimated mammal diversity and metacommunity dynamics in city parks, cemeteries, golf courses, and natural areas throughout the greater Chicago, IL, USA region. We found similar a-diversity (with the exception of city parks), but remarkably dissimilar communities in different urban green spaces. Additionally, the type of urban green space greatly influenced species colonization and persistence rates. For example, coyotes (Canis latrans) had the highest, but white-tailed deer (Odocoileus virginianus) the lowest, probability of persistence in golf courses compared to other green space types. Further, most species had a difficult time colonizing city parks even when sites were seemingly available. Our results indicate that urban green spaces contribute different, but collectively important, habitats for maintaining and conserving biodiversity in cities.</p>
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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.