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263 results for “upland”
Data associated with the FLooded Upland Dynamics EXperiment (FLUDEX), conducted at the IISD Experimental Lakes Area 1997 to 2003, investigating reservoir flooding impacts on ecosystems, particularly the release of mercury and greenhouse gases.
The data included in this repository were collected over the course of the FLooded Upland Dynamics Experiment (FLUDEX) conducted at the IISD Experimental Lakes Area (IISD-ELA) from 1997 to 2003. A plethora of data was collected over five years of flooding three upland reservoir sites, in order to examine the relationship between the amount of flooded, and thus decomposed, terrestrial organic matter and the production of methylmercury (MeHg), total mercury (THg), and greenhouse gases (GHGs) in the reservoirs. Findings from this experiment suggest that the amount of organic carbon stored in a flooded site does not directly influence the amount of THg, MeHg, and GHGs produced, but it does affect the persistence of mercury in the reservoir and food web. This version of the repository contains data collected on water chemistry, benthic invertebrate (chironomid) emergence, mercury and methylmercury concentrations in the water and food web, stable isotopes of carbon and nitrogen in emerging insects and zooplankton, and abundance and biomass of zooplankton, phytoplankton, and bacteria. This data package contains only some of the data from the FLUDEX project. IISD-ELA hopes to add more data in subsequent versions.
Marsh to Upland: Vegetation Monitoring in Coastal Virginia, 2018-2022
This dataset includes data from vegetation plots along a marsh to upland gradient in three salt-marshes along the Eastern Shore of Virginia. Coastal wetlands serve as vital habitats and provide various ecosystems services. These ecosystems are experiencing novel abiotic conditions driven by anthropogenic change, including changes in salinity and moisture due to sea level rise. A key component of wetland ecosystems are their vegetation communities, which often show a transition from non-woody marsh plants like grasses and sedges to woody shrubs and larger trees in the upland reaches of the wetland. This dataset was collected from three coastal wetlands: Boxtree Preserve (Boxtree), Cushmans Landing (Cushmans), and Mockhorn Wildlife Management Area GATR Tract (GATR). Measurements of emergent vegetation percent cover and tree and shrub characteristics are taken annually at maximum biomass for the plant community, which occurs in August in this system (Moore 2013). At each site sampling occurs along four transects which run through the low marsh, high marsh, transitional area, lowest elevation upland forest, and slightly higher elevation upland forest. Each transect is segmented into five zones based on these plant communities, which roughly correspond to elevation bins of 1m. Each zone contains one sampling location.
Indicative distribution map for Ecosystem Functional Group F1.1 Permanent upland streams
<p>This archive contains indicative distribution maps and profiles for <strong>F1.1 Permanent upland streams</strong>, a ecosystem functional group (EFG, level 3) of the <a href="https://global-ecosystems.org/">IUCN Global Ecosystem Typology</a> (v2.0). Please refer to Keith <em>et al.</em> (2020) for details.</p> <p>The descriptive profiles provide brief summaries of key ecological traits and processes, maps are indicative of global distribution patterns, and are not intended to represent fine-scale patterns. The maps show areas of the world containing major (value of 1, coloured red) or minor occurrences (value of 2, coloured yellow) of each ecosystem functional group. Minor occurrences are areas where an ecosystem functional group is scattered in patches within matrices of other ecosystem functional groups or where they occur in substantial areas, but only within a segment of a larger region. Given bounds of resolution and accuracy of source data, the maps should be used to query which EFG are likely to occur within areas, rather than which occur at particular point locations. Detailed methods and references for the maps are included in the profile (xml format).</p>
Indicative distribution map for Ecosystem Functional Group F1.4 Seasonal upland streams
<p>This archive contains indicative distribution maps and profiles for <strong>F1.4 Seasonal upland streams</strong>, a ecosystem functional group (EFG, level 3) of the <a href="https://global-ecosystems.org/">IUCN Global Ecosystem Typology</a> (v2.0). Please refer to Keith <em>et al.</em> (2020) for details.</p> <p>The descriptive profiles provide brief summaries of key ecological traits and processes, maps are indicative of global distribution patterns, and are not intended to represent fine-scale patterns. The maps show areas of the world containing major (value of 1, coloured red) or minor occurrences (value of 2, coloured yellow) of each ecosystem functional group. Minor occurrences are areas where an ecosystem functional group is scattered in patches within matrices of other ecosystem functional groups or where they occur in substantial areas, but only within a segment of a larger region. Given bounds of resolution and accuracy of source data, the maps should be used to query which EFG are likely to occur within areas, rather than which occur at particular point locations. Detailed methods and references for the maps are included in the profile (xml format).</p>
Marcell Experimental Forest monthly upland water table elevation, 1962 - ongoing
This data publication contains monthly upland ground water table elevation data collected from 1962-ongoing at the Marcell Experimental Forest (MEF) in Itasca County, Minnesota, which is operated and maintained by the USDA Forest Service, Northern Research Station. The data come from upland monitoring wells in six watersheds (with peatlands) that are instrumented for hydrologic monitoring.
GFE01 Ghost Fire: an experimental manipulation of fire effects on multi-trophic community dynamics in the ungrazed uplands of unburned and annually burned watersheds of Konza Prairie
Frequent burning is a common land practice in many grasslands worldwide, and this land use strategy has large impacts on a wide variety of ecosystem functions and services. Fire in tallgrass prairie, in the absence of grazing, alters plant community composition, decreases richness, and increases plant production. Proposed mechanisms for the changes in community composition and function are that fire decreases N availability (through volatilization) and removes litter (thereby increasing light availability and decreasing soil moisture). However, few experiments explicitly test these mechanisms, and those that do monitor short-term effects.Yet, the strength of these mechanisms likely differ over longer time scales, as other ecosystem attributes (e.g., plant community composition) change through time. Ghost Fire aims to determine the mechanisms behind community and ecosystem differences between annually burned grassland and 20-year burned grassland (hereafter called unburned) by experimentally manipulating N availability and litter. We impose litter and N conditions found in unburned grassland onto annually burned grassland, and litter and N conditions typically found in annually burned grassland onto unburned grassland. Importantly, Ghost Fire monitors both below-and above-ground plant community and ecosystem dynamics as well other dimensions of the ecosystem including microbial and mycorrhizal communities and insect community composition and biomass.
Riparian and upland understory vegetation lifeforms and leaf-litterfall ordination analyses in the Luquillo Forest Dynamics Plot
Riparian areas are proportionally a small component of the forested landscape, they are significant contributors to ecosystem process, terrestrial and aquatic linkages, plant community composition, as well to basal energy resources for aquatic fauna. We describe vegetation and leaf-litterfall composition in relation to past land use in riparian and upland locations in tropical wet forest, Luquillo Forest Dynamics Plot (LFDP), Luquillo Experimental Forest, Puerto Rico. Data collected from 2003 to 2005. Stratified sampling was conducted in riparian and upland areas of LFDP with high and low past land use. Understory vegetation life-form composition were sampled in plots. \<para\> Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.\</para\>
Geochemistry of a weathering profile and natural waters in the upland Mediterranean catchment of Sapine, Mt-Lozère, southern France
<p>This publication reports geochemical data from an instrumented catchment of the Service National d’Observation “Observatoire Hydro-Météorologique Cévennes-Vivarais” (OHMCV) and of the National Research Infrastructure “Observatoires de la Zone Critique: Applications et Recherche” (OZCAR) of the French “Centre National de la Recherche Scientifique” (CNRS).</p> <p>The presented data are originally contained in Kuessner, M.L. (2018). The interplay between chemical weathering and hydrology in the Critical Zone - insight from trace elements and lithium isotopes [Doctoral dissertation, Institut de Physique du Globe de Paris]</p> <p>Contents</p> <p>Table SC1. Analyses of soil samples in Sapine Creek</p> <p>Table SC2. Analyses of rock samples in Sapine Creek</p> <p>Table SC3. Analyses of rain samples in Sapine Creek and Cloutasse catchments</p> <p>Table SC4. Analyses of stream samples in Sapine Creek</p> <p>Table SC5. Analytical limits for quadrupole ICP-MS measurements</p> <p>Table SC6. Analyses of reference materials for isotope measurements</p>
Dataset for Disturbance: a double-edged sword for restoration in a changing climate: Western Oregon and Washington upland prairies 2019-2020
Data associated with the paper submitted to Restoration Ecology in November 2021: Disturbance: a double-edged sword for restoration in a changing climate Alejandro Brambila1, Paul B. Reed1, Scott D. Bridgham1, Bitty A. Roy1, Bart R. Johnson2, Laurel Pfeifer-Meister1 and Lauren M. Hallett1 1. Institute of Ecology and Evolution, University of Oregon 2. Department of Landscape Architecture, University of Oregon In this project, we used this data to test how fire disturbance, designed to enhance restoration seeding success, combines with climate and initial vegetation conditions to shift perennial versus annual grass dominance and overall community diversity in Pacific Northwest grasslands. We seeded both native and introduced perennial grasses and native forbs in paired, replicated burned-unburned plots in three sites along a latitudinal climate gradient from southern Oregon to Washington. Past restoration and climate manipulations at each site had increased the variation of starting conditions between plots. This data is to be used with the script, full_disturbance_script.R, which can be accessed at https://github.com/HallettLab/hops. Includes the tables: plotkey.csv spkey.csv mixkey.csv vegplot.csv vegplot2020.csv
Measurements of soil nutrient leaching from agricultural depressions and uplands in Iowa, USA
We measured the leaching of nitrate, ammonium, and phosphorus in resin lysimeters installed along topographic transects from depressions to uplands within agricultural fields in Iowa, USA. Lysimeters were each installed for approximately one year. Crops included conventional corn and soybean, corn and soybean with a winter rye cover crop, and corn and soybean fields where depressions were planted with miscanthus. Measurements were made during 2018, 2019, and 2020, although not all transects could be measured each year. There were a total of 28 transect-years that included data from 734 individual resin lysimeters.
N cycling summary 2020-2022 of annually burned bison, cattle and ungrazed experimental watersheds on upland tallgrass prairie soils at the Konza Prairie Biological Station
Nitrogen (N) is a necessary element of soil fertility and a limiting nutrient in tallgrass prairie but grazers like bison and cattle can also recycle N. Bison and cattle impact the nitrogen (N) cycle by digesting forage that is consumed, and recycled back to the soil in a more available forms stimulating soil microbial N cycling activities. Yet we do not know how both grazers comparatively affect N cycling in tallgrass prairie. Thus, we investigated if bison cattle had similar impacts on N cycling in annually burned tallgrass prairie relative to ungrazed conditions over a 3-year period (2020-2022) at the Konza Prairie Biological Station. We took soil samples to investigate soil data: pH, soil water content, mineralized N, nitrification potential, denitrification potential and extracellular enzyme assays on upland soils of the Florence-Benfield complex soil map during the summer growing season from 2020 to 2022 on bison, cattle and ungrazed experimental watersheds at the Konza Prairie Biological Station. Soil sampling was undertaken once late in each summer growing season from 2020-2022. These years spanned a range of above-average rainfall (2020) to well below average (2021) and slightly below average (2022). We sampled along four 10-m transects, parallel to long-term plant sampling transects in each experimental watershed, in two bison grazed (N1A and N1B), two cattle grazed (C1A and C1B), and two ungrazed (1D and SpB) watersheds, all of which are burned annually.
White Spruce NPP: Tree density and basal area by diameter sizeclass in upland and floodplain mid- and late-successional stands: 1989-2008
This data set is derived from BNZ LTER inventory plots. Stand density and basal area are listed by diameter size class of live white spruce trees for each replicate stand within mid-successional and mature white spruce stands within both floodplain and upland landscapes by year from 1989-2008.
Aspen NPP: Tree density and basal area by diameter sizeclass in upland mid- and late-successional stands: 1989-2008
This data set is derived from BNZ LTER inventory plots. Stand density and basal area are listed by diameter size class of live aspen trees for each replicate stand within mid-successional upland landscapes by year from 1989-2008.
Birch NPP: Tree density and basal area by diameter sizeclass in upland and flooplain mid- and late-successional stands: 1989-2008
This data set is derived from BNZ LTER inventory plots. Stand density and basal area are listed by diameter size class of live Alaskan paper birch trees for each replicate stand within mid- and late- successional upland upland and landscapes by year from 1989-2008.
Balsam Poplar NPP: Tree density and basal area by diameter sizeclass in upland and flooplain mid- and late-successional stands: 1989-2008
This data set is derived from BNZ LTER inventory plots. Stand density and basal area are listed by diameter size class of live balsam poplar trees for each replicate stand within mid- and late-successional upland and floodplain landscapes by year from 1989-2008.
Denitrification and N2O potential of streams, lakes and uplands in boreal Alaska
Includes: denitrification enzymatic activity (denitrate), N2O production potential, relative production of N2O (fN2O), AFDM, extractable, stream water and pore water NO3, NH4, DOC, thaw depth of upland sites, bulk density. A warming climate causes permafrost to thaw, especially in the region of discontinuous permafrost, where soil temperatures may only be a few degrees below 0 degC. Permafrost thaw may be exacerbated by more frequent and severe fires that remove insulating organic layers above permafrost. Soil thaw releases carbon and nitrogen (N) into the actively cycling pools, and whereas carbon emissions following permafrost thaw are well documented, the fates of N remain unclear. Denitrification could release thawed N as nitrous oxide (N2O) or nitrogen gas (N2), but the contributions of these processes to the high-latitude N cycle remain uncertain. We quantified microbial capacity for denitrification and N2O production in boreal soils, lakes, and streams, and assessed correlates of denitrifying enzyme activity (DEA) in Interior Alaska. Across all landscape positions, DEA under anoxia and nitrate and organic carbon amendment was 4.15 microgram N2O-N /kg dry soil*h (range -6.39 to 479.94). Riparian soils and stream sediments supported the highest potential rates of denitrification, upland soils were intermediate, and lakes supported lower rates, whereas deep permafrost soils supported little denitrification. Time-since-fire had no effect on denitrification potential in upland soils. Across all landscape positions, DEA was negatively correlated with ammonium pools. Within each landscape position, potential rate of denitrification increased with soil or sediment organic matter content. Widespread N loss to denitrification in the boreal forest could constrain the capacity for N-limited primary producers to maintain carbon stocks in soils following permafrost thaw.
Figure 2 in Comparison of the species composition of Gamasina mite communities (Acari: Mesostigmata) in selected caves of the Kraków-Cz stochowa Upland (southern Poland) and their immediate surroundings
Figure 2. Diagram of the correspondence analysis (CA) for the sampling sites. The diagram shows only the most important species (for abbreviations see Table 1).
F I G U R E 1 in High summer temperatures are associated with poorer performance of underyearling Atlantic salmon (Salmo salar) in upland streams
F I G U R E 1 (a) Locations of sampling sites (circles) in the river Conon catchment, Northern Scotland. The map depicts the area within the black box in the inset map. (b) Daily maximum temperatures recorded in each stream during the study period (points represent the daily highest temperature for the entire stream, so may be either from the upper or lower sampling sites). Red values indicate temperatures>23 C, considered stressful to Atlantic salmon, while yellow values indicate temperatures between 20 C and 23 C, and blue values indicate temperatures <20 C. (c) Density and (d) biomass of underyearling Atlantic salmon, Salmo salar (both on a natural logarithmic scale, ± standard error) in relation to duration of peak temperatures (degree hours above 23 C) at sites in the River Conon catchment (n = 63 sections sampled across six sites in 2 years, 589 fish). All sites had the same initial density and genetic composition of eggs. Temperature: 0–20, 20–23, and>23. Year and sampling position: 2020 Downstream, 2020 Upstream, 2021 Downstream, and 2021 Upstream. Stream: Blackwater, Rannoch, and Vaich.
FIG. 5. Correlation between the spatial distribution index and population density. A in Demographic and spatial structure at the stage of expansion in the populations of some alien land snails in Belgorod city (Central Russian Upland)
FIG. 5. Correlation between the spatial distribution index and population density. A. For Brephulopsis cylindrica and Xeropicta derbentina at 160 plots for three years. B. For Harmozica ravergiensis in nine sites×20 plots for two years. РИС. 5. Корреляция меЖду индексом пространственного распределения и плотностью популяции. А. Для Brephulopsis cylindrica и Xeropicta derbentina на 160 плоЩадках За три года. В. Для Harmozica ravergiensis на девяти участках по 20 плоЩадок За два года.
FIG. 4 in Demographic and spatial structure at the stage of expansion in the populations of some alien land snails in Belgorod city (Central Russian Upland)
FIG. 4. Boxplots for estimating the density of different age classes in the Xeropicta derbentina population in warm months of 2017, 2019, and 2020 for 160 test plots. Adult snails are represented by red boxes; juvenile snails are represented by blue boxes. РИС. 4. Боксплоты для оценок плотности раЗличных воЗрастных классов в популяции Xeropicta derbentina в раЗные теплые месяцы 2017, 2019 и 2020 гг. для 160 пробных плоЩадок. ВЗрослые особи покаЗаны красным цветом, ювенильные особи покаЗаны голубым цветом.
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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.