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272 results for “Forest biodiversity”
Data for: Environmental filtering drives biodiversity‒spatial stability relationships in a large temperate forest region
<ol> <li>The assumption that greater biodiversity enhances ecosystem stability, commonly known as "portfolio effect", has attracted considerable research attention. However, the potential portfolio effects on spatial stability (the similarity of ecosystem functioning among forest communities) are still poorly examined especially at different spatial scales and under varying environmental stress conditions. Accordingly, this study investigates the biodiversity-spatial stability relationship among regional communities across different spatial scales and environmental conditions in a temperate forest region.</li> <li>We define spatial stability as the invariability of the productivity of woody plants among plots within a regional community. To test spatial stability, the N closest plots to a given plot were aggregated to form regional communities representing different spatial scales. Structural equation modeling was used to evaluate how biodiversity (including taxonomic (TD) and phylogenetic diversity (PD)) increases spatial stability via species asynchrony and/or population stability across spatial scales. Hierarchical Bayesian modeling was used to evaluate the environmental dependence of the portfolio effects on spatial stability.</li> <li>TD and PD both increased spatial stability by increasing asynchrony, but decreased population stability. The portfolio effect of TD on spatial stability became stronger and reached saturation at the intermediate scale and then decreased as regional communities became larger. The portfolio effects of TD were weaker under the stressful conditions of drought, high precipitation seasonality and high elevation but unchanged across temperature seasonality and human disturbance. PD showed no discernable effect on spatial stability and did not change across spatial scale and environmental condition.</li> <li>Our results suggest that the positive effect of biodiversity on species asynchrony overcomes the negative biodiversity effect on population stability to buffer the spatial change in productivity in diverse communities. Future research on the biodiversity–spatial stability relationship may thus benefit from incorporating different spatial scales and environmental conditions into the analysis. </li> </ol>
Changes in forest biodiversity metrics associated with Hurricane Katrina
<p class="MsoNormal">Recurrent tropical cyclones frequently influence warm temperate forests in many coastal regions. If resistance to high winds (cyclone survival) and resilience in altered environments (post-cyclone recruitment) vary with cyclone intensity, then differences in composition, arboreal structure and dynamics of forests should occur in these forests. We hypothesized that major tropical cyclones should produce large, stratum-dependent effects that result in large environmental changes. We anticipate direct regeneration, with post-cyclone forests resembling pre-cyclone forests in composition, but potentially shifting to long-transient alternate states that do not readily or necessarily return to pre-cyclone states. Using a long-term, plot-based study, we explored direct effects of major Hurricane Katrina (sustained winds >50m/sec), as well as initial post-hurricane changes in overstory and understory trees in oak-dominated bottomland and cypress/tupelo-dominated swamp forests within the Mississippi River delta. Hurricane Katrina caused high overall mortality (14% - swamp forest, 25% - bottomland forest), but mortality was concentrated in overstory strata (22% in swamp forests and 70% in bottomland forests). Almost all overstory oaks were killed, while most overstory cypress and tupelo were damaged, but survived and were reduced to understory status. In both forests, many trees of less abundant overstory species (red maples, sweetgum, elms, ash) survived and constitute a slowly reforming overstory via resprouting of survivors and recruitment of understory trees. Thus, forest overstories appear likely to change in dominant species. Understory trees in both forests had high survival and responded post-cyclone. Nonetheless, one usurper species, dwarf palmetto, with high resistance and high resilience, now forms a dense arboreal layer in the understory stratum, dominating an alternate state with different overstory and closed understory capable of suppressing recruitment and establishment of overstory and understory species. Resistance and resilience of overstory and understory tree species that vary with cyclone intensity might result in prolonged alternate states in cyclone-frequented forests.</p>
Changes in forest biodiversity metrics associated with Hurricane Katrina
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Data from: Biodiversity along temperate forest succession
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Data from: The impacts of climate change and disturbance on spatio-temporal trajectories of biodiversity in a temperate forest landscape
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Data from: Deforestation and forest fragmentation in South Ecuador since the 1970s - losing a hotspot of biodiversity
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Data from: Reconciling timber extraction with biodiversity conservation in tropical forests using reduced-impact logging
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Data from: The impact of even-aged and uneven-aged forest management on regional biodiversity of multiple taxa in European beech forests
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Data for: Environmental filtering drives biodiversity‒spatial stability relationships in a large temperate forest region
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Data from: Fine-scale forest variability and biodiversity in the boreal mixedwood forest
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Data from: Comparing forest structure and biodiversity on private and public land: secondary tropical dry forests in Costa Rica
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Biodiversity and Forest structure one year following the 2016 Fort McMurray (Alberta) fire event
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Data from: The biodiversity benefit of native forests and mixed-species plantations over monoculture plantations
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Carbon-biodiversity relationships in a highly diverse subtropical forest
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Data from: The importance of forest structure to biodiversity-productivity relationships
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Data from: A combined field survey and molecular identification protocol for comparing forest arthropod biodiversity across spatial scales
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Water availability drives above-ground biomass and bird richness in forest restoration plantings to achieve carbon and biodiversity co-benefits
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Data and R code from: Fire-induced loss of the world’s most biodiverse forests in Latin America
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Above- and below-ground biodiversity jointly regulate temperate forest multifunctionality along a local-scale environmental gradient
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Restoration priorities for Caatinga dry forests: landscape resilience, connectivity and biodiversity value
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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.