Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
517
datasets available to search
ShareScore release 0.9.0
Dataset results
517 results for “Floodplain”
Effects of mammalian browsing on fine root processes and production in the floodplains of BCEF
The effects of browsing by moose and snowshoe hares on fine root production, mortality and decomposition in early successional forest ecosystems along the Tanana River floodplain in interior Alaska were studied over a 3 year period using minirhizotrons placed inside and outside large permanent exclosures. Fine root production and mortality varied seasonally, with greatest rates of production occurring during June each year, and greatest rates of mortality occurring in fall and over winter. Annual production and mortality during 1993, a year of unusually low precipitation, were significantly higher than during either 1992 or 1994. Aboveground herbivory significantly reduced monthly rates of fine root production, and on an annual basis, fine root production of browsed plots (311.4 - 31.7 mm tube-1 yr-1) was significantly less than that of unbrowsed plots (453.8-49.8 mm tube-1 yr-1) when averaged over 3 years. Because herbivory had less of an effect on monthly or annual rates of fine root mortality, fine root turnover was higher for browsed stands. Browsed plants had a higher percentage of annual production in surface soil layers. Production on all plots shifted to deeper soil layers as the growing season progressed; this shift occurred deeper in the profile for unbrowsed plants than for browsed plants. We used a parameter estimation program (Program MARK) to generate fine root survival and decomposition estimates from models testing the direct and interactive effects of time period, cohort, i.e., when the root first appeared, age of the root, browsing, and site on fine root longevity and decomposability. Cohort effects showed that survival of fine roots was greatest for roots that first appeared in May, and progressively declined for roots first appearing during subsequent time periods, while aged-based estimates showed a rapid decline in survival over the interval following first appearance. Survival and decomposition estimates were inversely correlated within a grow
Soil Respiration in Bonanza Creek Experimental Forest from Upland and Floodplain sites 1990-1992
This study is designed to evaluate total soil respiration among stages of forest succession in upland secondary and floodplain primary succession, and in relation to the impact of additions of carbon substrates of differing decomposibilities to the forest floors of these successional stages. The inverted bucket, soda-lime procedure was used to obtain weekly estimates of total soil respiration for three years during the growing season.
Soil Respiration in Bonanza Creek Experimental Forest Floodplain Black Spruce Sites
Fine root processes play a prominent role in the carbon and nutrient cycling of boreal ecosystems due to the high proportion of biomass allocated belowground and the rapid decomposition of fine roots relative to aboveground tissues. To examine these issues in detail, major components of ecosystem carbon flux were studied in three mature black spruce forests in interior Alaska, where fine root production, respiration, mortality and decomposition, and aboveground production of trees, shrubs and mosses were measured relative to soil CO2 fluxes. Fine root production, measured over a 2-year period using minirhizotrons, varied from 0.004 ? 0.001 mm cm-2 d-1 over winter, to 0.051 ? 0.015 mm cm-2 d-1 during July, with peak growing season values comparable to those reported for many temperate forests using similar methods. On average, 84% of this production occurred within 20 cm of the moss surface, although the proportion occurring in deeper profiles increased as soils gradually warmed throughout the summer. Monthly rates of production and mortality were somewhat asynchronous because mortality tended to peak during fall and be minimal during periods of peak production. Production and mortality were, however, positively correlated across all tubes and time periods (r2 = 0.42, P < 0.0001). Annual fine root production averaged 2.45 ? 0.31, 8.01 ? 1.39, and 2.53 ? 0.27 mm cm-2 yr-1 among the three sites, when averaged across years. Fine root survival and decomposition were measured by tracking and analyzing the fate of individual fine roots using mark-recapture techniques. Fine root survival was greatest during periods of peak root growth, and least over winter (?time). Roots first appearing in the middle of the growing season had higher survival rates than those first appearing early or late in growing season, or over winter (?cohort), and risk of mortality decreased with root age (?age). Survival estimates translate to mean life spans of 108 ? 4 days during the growing season
Soil Temperature Measurements at LTER Floodplain Successional Sites (FP1A,FP2A,FP4A): 1985-present (hourly)
Soil temperature readings were collected hourly during summer months at LTER Floodplain Successional Sites (FP1A, FP2A and FP4A) with a Campbell data logger beginning in 1985.
Effects of stem canker disease on N fixation inputs by Alnus tenuifolia to early-successional floodplains in interior and south-central Alaska. I. Nitrogen fixation rates, leaf chemistry and soil chemistry.
This dataset contains data on nitrogen fixation rates, leaf chemistry, soil temperature and moisture, and soil chemistry on trees selected for studying disease-mediated declines in N-fixation inputs by Alnus tenuifolia to early-successional floodplains in interior and south-central Alaska
Effects of stem canker disease on N fixation inputs by Alnus tenuifolia to early-successional floodplains in interior and south-central Alaska. II. Nodule biomass and incidence of canker for individual genets.
This dataset contains nodule biomass and incidence of canker infection for individual genets of Alnus tenuifolia as part of a project studying disease-mediated declines in N-fixation inputs by Alnus tenuifolia to early-successional floodplains in interior and south-central Alaska
Bonanza Creek Experimental Forest: Weekly TDR measurments at core upland and floodplain sites.
Weekly measurements of soil moisture detected with Time Domain Reflectometry using a TRASE TDR system that was operated from 1992 through 2002.
Nitrogen and Phosphorus resorption of thin-leaf alder growing in control, N-fertilized, and P-fertilized plots across a floodplain successional gradient.
This file includes data for leaf N and P concentrations, specific leaf weight, and N and P resorption for thin-leaf alder during the 2009 growing in control, N-fertilized, and P-fertilized stands in early-, mid- and late-successional stages along the Tanana River.
Data from: Candidate gene SNP variation in floodplain populations of pedunculate oak (Quercus robur L.) near the species' southern range margin: weak differentiation yet distinct associations with water availability
<p>Populations residing near species' low-latitude range margins (LLM) often occur in warmer and drier environments than those in the core range. Thus, their genetic composition could be shaped by climatic drivers that differ from those occurring at higher latitudes, resulting in potentially adaptive variants of conservation value. Such variants could facilitate the adaptation of populations from other portions of the geographic range to similar future conditions anticipated under ongoing climate change. However, very few studies have assessed standing genetic variation at potentially adaptive loci in natural LLM populations. We investigated standing genetic variation at SNPs located within 117 candidate genes and its links to putative climatic selection pressures across 19 pedunculate oak (Quercus robur L.) populations distributed along a regional climatic gradient near the species' southern range margin in southeastern Europe. These populations are restricted to floodplain forests along large lowland rivers, whose hydric regime is undergoing significant shifts under modern rapid climate change. The populations showed very weak geographic structure, suggesting extensive genetic connectivity and gene flow or shared ancestry. We identified eight (6.2%) positive FST-outlier loci, and genotype-environment association analyses revealed consistent associations between SNP allele frequencies and several climatic variables linked to water availability. A total of 61 associations involving 37 SNPs (28.5%) from 35 annotated genes provided important insights into putative functional mechanisms in our system. Our findings provide empirical support for the role of LLM populations as sources of potentially adaptive variation that could enhance species' resilience to climate change-related pressures.</p>
Data from: Reintroduced native Populus nigra in restored floodplain reduces spread of exotic poplar species
<p class="AuthorList">Exotic <i>Populus</i> taxa pose a threat to the success of riparian forest restoration in floodplain areas. We evaluated the impact of exotic <i>Populus</i> taxa on softwood riparian forest development along the river Common Meuse after introducing native <i>Populus nigra</i> and after the re-establishment of the natural river dynamics. We sampled 154 poplar seedlings that spontaneously colonised restored habitat and assessed their taxonomy based on diagnostic chloroplast and nuclear microsatellite markers. Furthermore, by using a paternity analysis on 72 seedlings resulting from six open pollinated <i>P. nigra </i>females, we investigated natural hybridization between frequently planted cultivated poplars and native <i>P. nigra</i>.</p> <p>The majority of the poplar seedlings from the gravel banks analyzed where identified as <i>P. nigra</i>; only 2% of the sampled seedlings exhibited genes of exotic poplar species. Similarly, the majority of the seedlings from the open pollinated progenies were identified as <i>P. nigra</i>. For three seedlings (4%), paternity was assigned to a cultivar of <i>P.</i> x <i>canadensis</i>.</p> <p>Almost two decades after reintroducing <i>P. nigra</i>, the constitution of the seed and pollen pools changed in the study area in favour of reproduction of the native species and at the expense of the exotic poplar species. This study indicates that, although significant gene flow form exotic poplars is observed in European floodplains, restoration programmes of the native <i>P. nigra</i> can vigorously outcompete the exotic gene flows and strongly reduce the impact of exotic <i>Populus</i> taxa on the softwood riparian forest development.</p>
Channel cross section and floodplain water level data from the Allanmore Floodplain, River Dee, Scotland, UK (2013-2018).
<p>Filename: 'Cross Section Data.xls': Cross section data from the River Dee (N=5) and adjacent backwater (N=3) from the floodplain reconnection site. Cross sections surveyed with a real-time kinematic global positioning system (Leica Geosystems 1200) on an annual basis between 2013 and 2018 (twice in 2015 before and immediately after restoration work was completed in October 2015). Elevation data are reported in British National Grid (m above Ordnance Survey datum) format. </p> <p>Filenames 'ML1-ML3 Water Levels.xls': Continuous water table and surface water (15 minute interval) data from three contrasting floodplain observation well sites between 2013 and 2018 (ML1: ditch, ML2: floodplain surface and ML3: backwater). Note there are two data gaps for ML3 due to instrument loss (08/10/2015-16/10/2015 and 18/12/2015-21/06/2016). Water levels were measured with a Troll 100 sensor (ML1 and ML2) and a Frog RX logger/Troll 100 sensor (ML3). All data was corrected for atmospheric pressure using continuous data from a barometric sensor at the site (BaroTroll 100). Water level data are referenced to British National Grid datum. </p> <p>For more details on the methods and results please see the associated article published in the journal<em> Science of the Total Environment</em>:</p> <p>Addy, S. and Wilkinson, M.E. (2021) Embankment lowering and natural self-recovery improves river-floodplain hydrogeomorphic connectivity of a gravel bed river. Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2020.144626</p> <p> </p> <p> </p>
Abundances of xylobiont beetles in the Leipzig floodplain forest 2016
<p>The dataset includes abundance data from xylobiont beetles, captured in the Leipzig floodplain forest between March and October 2016. We sampled three strata and three tree species. The strata were the understory with 2 traps, the lower canopy with 12 traps and the upper canopy with 12 traps. The 24 traps in the lower and upper canopy can further be assigned to the tree species <em>Quercus robur</em>, <em>Tilia cordata</em> and <em>Fraxinus excelsior</em>. Each tree was sampled with 8 traps, 4 in the lower and 4 in the upper canopy. The dataset includes 5187 individuals, belonging to 279 beetle species of 51 families and further 553 individuals which couldn't be determined to species level.</p>
Fig. 10 in A new Centromochlus Kner, 1858 (Siluriformes: Auchenipteridae: Centromochlinae) from the transition between Amazon floodplain and Guiana shield, Brazil
Fig. 10. Distribution of Centromochlus orca. Green star represents type locality.
Fig. 9 in A new Centromochlus Kner, 1858 (Siluriformes: Auchenipteridae: Centromochlinae) from the transition between Amazon floodplain and Guiana shield, Brazil
Fig. 9. Centromochlus orca, new species, just after capture. Photo by H. Lazzarotto.
Figure 5 in Phytoplankton diversity of two floodplain lakes (pats) of Manipur, northeastern India
Figure 5. Hierarchical cluster analysis of Phytoplankton of Waithou Pat (2002-03)
Figure 3 in Phytoplankton diversity of two floodplain lakes (pats) of Manipur, northeastern India
Figure 3. Hierarchical cluster analysis of phytoplankton of Utra Pat (2002-03)
Just north of Hawes on River Ure floodplain
Lots of interesting earthworks on the River Ure floodplain opposite Hawes 3D model created from 50cm DTM LIDAR using QGIS and color-ramps to colour code elevations. Zoom in and pan around to see the features. Click the ? bottom right of the screen for navigation help. Source: Objaverse 1.0 / Sketchfab
Fig. 1 in Feeding strategy of the introduced Astronotus crassipinnis (Cichlidae) in upper Paraná river floodplain
Fig. 1. Upper Paraná River floodplain with Nupelia field laboratory in detail.
GIS web application for sustainable dike reinforcement solutions using nearby floodplains
<p>This is the dataset and instructions used for the GIS web application developed for the Dutch RAAKpubliek project Rivierwerken (Project nr.: RAAK.PUB09.018).</p>
Fig. 1 in Predominance of Vibidia duodecimguttata (Poda, 1761) in the assemblages of ladybird beetles (Coleoptera: Coccinellidae) overwintering in floodplain forests
Fig. 1. Localization of the ladybird sampling sites (I-VI).
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.