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261 results for “litter decomposition”
Data from: Trees first inhibit then promote litter decomposition in the subarctic
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N dynamics of leaf and root litter decomposition
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Data for: Rewilding soil and litter invertebrates and fungi increases decomposition rates and alters detritivore communities
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Data from: Chronic phosphorus enrichment and elevated pH suppresses Quercus spp. leaf litter decomposition in a temperate forest
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Exotic herbivores indirectly decelerate litter decomposition via increased resistance to herbivory in exotic plants
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Tree diversity effects on litter decomposition are mediated by litterfall and microbial processes
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How detritivores, plant traits and time modulate coupling of leaf versus woody litter decomposition rates across species
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Data from: Acceleration or deceleration of litter decomposition by herbivory depends on nutrient availability through intraspecific differences in induced plant resistance traits
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Relative effects of climate and litter traits on decomposition change with time, climate and trait variability
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The coordination between leaf and fine root litter decomposition and the difference of their controlling factors
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Data from: Invertebrate phenology modulates the effect of the leaf economics spectrum on litter decomposition rate across 41 subtropical woody plant species
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The overall decomposition of the spring-lodged litter is faster than the autumn-lodged litter in a steppe ecosystem
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Litter decomposition rates across tropical montane and lowland forests are controlled foremost by climate
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No home-field advantage in litter decomposition from the desert to temperate forest
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Data from: Microenvironmental variability differently predicts microorganism- and fauna-driven litter decomposition
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Variability in terrestrial litter decomposition can be explained by nutrient allocation strategies among soil decomposer communities
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Soil nitrate and ammonium: Litter Quality and Landscape Controls of Decomposition
This experiment was established in November of 1990. It involved placing over a thousand preweighed and labeled oak and birch dowels in the field across the Cedar Creek landscape. The purpose is to measure the decomposition potential using a uniform common substrate across Cedar Creeks broad range of ecosystems. Each of the 27 sites have 11 above and 11 belowground dowels of birch and the same number of red oak. This allows for two samples the first year and one per year thereafter for 10 years. Each dowel is 12.7cm long and 1.27cm in diameter. Each dowel is preweighed and tagged. Belowground dowels are driven into the ground vertically and tethered to two pieces of rebar (birch on one, oak on the other) located about a meter apart. Aboveground dowels are laid on top of existing litter and are tethered to the rebars. Resin bags are tethered to the rebars and buried in the upper soil (ca. 5cm). Replicate sets of dowels and ion exchange resin bags (to measure N availability) were placed in 9 grassland, 9 forest, and 9 wetland sites. All 27 sites are in or adjacent to already established LTER plots. The first samples were collected in May 1991. On May 5, 1995, a wildfire burned completely through field B where some of experiment 88 was located.
Extracellular enzyme: Effects of Nitrogen Fertilization on Litter and Soil Decomposition
The influence of inorganic nitrogen (N) inputs on decomposition is poorly understood. Some prior studies suggest that N may reduce the decomposition of substrates with high concentrations of lignin via inhibitory effects on the activity of lignin-degrading enzymes, although such inhibition has not always been demonstrated. The purpose of E145 was to study the effects of nitrogen (N) addition on decomposition of seven substrates ranging in initial lignin concentrations (from 7.4 - 25.6%) over five years in eight different grassland and forest sites in central Minnesota.
Phospholipid fatty acids (PFLA) on decomposed litter: Nitrogen limitation in decomposition
Modern agriculture and fossil fuel combustion contribute to the transfer of N from largely inert pools (atmospheric N2, fossil fuel reserves) to biologically reactive forms that can be transported downwind from agricultural or industrial areas to ecosystems that historically may have experienced low levels of N inputs. Understanding how increased N inputs alter the cycling of another biologically important element, C, has been impeded by uncertainties about N effects on the process of decomposition. To date, ecologists remain unable to predict when, where, and in what forms N addition stimulates rates of decomposition. For example, recent work showed that in eight low-N sites in Central Minnesota, litter N was positively correlated with decomposition, suggesting N limitation of decomposition, yet addition of inorganic N fertilizer increased decomposition in only two of eight sites. These paradoxical results call into question the assumption that the often-observed correlation between substrate N concentration and decomposition arises because N limits decomposition. Research is addressing three interrelated questions:* (1) Why do litter N and externally supplied N have contrasting effects on decomposition in low-N ecosystems? (2) Do different forms of N (organic vs. inorganic; substrate vs. externally supplied) affect the activity, function and composition of the decomposer community differently, and, if so, what are the consequences for decomposition? (3) What are temporal dynamics of the activity, function, and composition of the decomposer community and do these dynamics depend upon the amount and forms of N supplied to the decomposer community?* These questions will be addressed using a 4-y decomposition experiment manipulating the quantity and form of N available to decomposers via use of substrates ranging in N concentrations and of inorganic (ammonium nitrate) and organic (amino acids) N fertilizers. The response of microbial biomass, stoichiometry, efficiency
UV Litter Decomposition: The role of photodegradation in surface litter decomposition in grasslands along UV-B gradient
Process-based models of plant litter decomposition typically underestimate the rates of decomposition in arid and semi-arid grasslands. Recent research, including our field studies, suggests that photodegradation, the decomposition of material through solar radiation, may play an important role in arid and semi-arid grassland ecosystems. The contribution of photodegradation to overall rates of decomposition is not well understood or quantified. The goal of this project is to investigate the effects of ultraviolet radiation on rates of plant litter decomposition for two grass species, Andropogon gerardii and Bouteloua gracilis, in three grassland sites: Cedar Creek (MN), Shortgrass Steppe (CO), and Sevilleta (NM).
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.