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88 results for “Community: disturbance”
Experimental disturbance and productivity gradients drive community diversity in aquatic mesocosms
<p>Combined effects of disturbance and productivity on ecological diversity have been considered for decades as the dynamic equilibrium model (DEM) but are rarely tested together. Instead, most studies focus on either the intermediate disturbance hypothesis or sometimes the intermediate productivity hypothesis. In addition, most analyses of disturbance and productivity effects have relied on nonexperimental patterns, limited sample sizes, inaccurate proxies for productivity, and/or simple measures of diversity. The DEM operates at regional and local scales; here, we conducted a year‐long experiment at local scales using submersed aquatic vegetation in outdoor mesocosms with a factorial combination of physical disturbance and productivity treatments. We evaluated diversity in several ways, directly measured productivity, and compared alternative hypotheses using model selection. The DEM was supported for effective diversity; both productivity and disturbance effects were clear, though productivity effects were stronger. Other diversity measures for the simple communities in the mesocosms did not clearly reflect treatments. The DEM is a valuable general framework for understanding disturbance and productivity effects on ecological systems and is made more general by minor conceptual adjustments here.</p>
Roadside disturbance promotes plant communities with arbuscular mycorrhizal associations in mountain regions worldwide
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Disturbances in drylands: Interactions among herbivory, drought, and termite activity in savanna plant communities
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Data from: Increased diversity and concordant shifts in community structure of coral-associated Symbiodiniaceae and bacteria subjected to chronic human disturbance
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Data from: Ant communities respond to a large-scale disturbance along an elevational gradient in Puerto Rico, U.S.A.
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Long-term responses to large-scale disturbances: Spatiotemporal variation in gastropod populations and communities
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Data from: Bird species with similar effect traits maintain the temporal stability of community functions under disturbances of tropical cyclones
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Data from: Disturbance-mediated consumer assemblages determine fish community structure and moderate top-down influences through bottom-up constraints
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Data from: Space-for-time substitution misleads projections of plant community and stand-structure development after disturbance in a slow-growing environment
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Data from: Community size and disturbance history jointly explain the interplay between stochastic and deterministic community variation in benthic invertebrates
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Data from: Tropical understory herbaceous community responds more strongly to hurricane disturbance than to experimental warming
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Data for: Effect of seaweed canopy disturbance on understory microbial communities on rocky shores
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Data from: Plant selection initiates alternative successional trajectories in the soil microbial community after disturbance
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Experimental disturbance and productivity gradients drive community diversity in aquatic mesocosms
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Data for: Local conditions matter: Minimal and variable effects of soil disturbance on microbial communities and functions in European vineyards
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Data from: Long-term climate and hydrologic regimes shape stream invertebrate community responses to a hurricane disturbance
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Data from: Macroinvertebrate community responses to disturbance in a fragmented river with contrasting legacies of alteration
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Data from: Seeing the wood despite the trees: exploring the impact of human disturbance on plant diversity, community structure, and standing biomass in fragmented high Andean forests
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Data from: The ghost of disturbance past: long-term effects of pulse disturbances on community biomass and composition
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Data from: Interspecific variation in post-disturbance growth responses of a savanna tree community and its implications for escaping the fire trap
<p>Vegetation states in savannas are highly sensitive to tree growth rates, which determine whether individual trees can 'escape' periodic disturbances. Resprouting trees have lopsided shoot:root ratios and are often multi-stemmed, and these variables can modify post-disturbance growth rates and therefore the probability of escape. To date, few studies have systematically examined the implications of interspecific variation in these factors for escape. We conducted a two-year field experiment in lowveld savanna in South Africa and quantified post-disturbance growth characteristics of topkilled trees among 16 species. We examined the dependence of growth on pre-disturbance stem size across species, and the relationship between growth rates and the tendency of trees to produce a few large <i>vs.</i> many small resprouts following disturbance. We found that resprout growth was strongly influenced by pre-disturbance size, but the relationship did not vary among species. In contrast, our results showed that fast-growing species tend to allocate resources towards a few dominant stems, while slow-growing species allocated new biomass towards many smaller stems. Tree species that produced a few large stems also tended to produce individual stems that were tall and thin, further suggesting that the "few large <i>vs.</i> many small" axis is linked to intrinsic species attributes. These findings have implications for understanding how interspecific variation in savanna tree communities may influence their ability to escape disturbance traps.</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.