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.
566
datasets available to search
ShareScore release 0.7.1
Dataset results
566 results for “ponds”
CoUDlabs_WP8_T831_AaU_001 Application of Large-Scale Particle Image Velocimetry (LSPIV) technique in Aalborg retention pond
<p>This dataset includes the data obtained during the installation of a camera system to determine the surface velocities in a retention pond monitored by Aalborg University (AAU). The dataset consists of raw and processed images and surface velocity maps obtained during preliminary experiments when the retention tank was being filled and emptied. The objective is to assess the feasibility and usefulness of this type of measurement for the calibration of CFD models to optimize the operation of the installation. The data presented may help to improve and assess imaging techniques in real conditions in urban environments.</p><p>The dataset is a result from the Joint Research Activity 3 (WP8, Improving Resilience and Sustainability in Urban Drainage solutions), Task 8.3.1. (Hydrodynamic design for stormwater detention ponds optimized for cost-efficient maintenance) within Co-UDlabs project, funded under the European Union's Horizon 2020 research and innovation program under grant agreement No 101008626. </p>
Rocher's Pond
From UAV photos in Wood Buffallo National Park/Peace Athabasca Delta, Alberta, Canada. Source: Objaverse 1.0 / Sketchfab
Biogeochemical data from urban ponds in Brussels
<p>The dataset comprises two files, each containing geo-referenced information with corresponding timestamps.The names of the ponds are written in French according to the official name defined by Brussels Environment (BE).</p> <ul> <li>Brussels_ponds_all.xlsx contains pH, Conductivity, dissolved oxygen saturation, CO2, CH4, N2O dissolved concentrations, chlorophyll-a concentrations, inorganic nutrients (NO3-, NO2-, NH4+, PO43-) concentrations, total phosphorus and total suspended matter concentrations collected during four surveys (November 2021, February 2022, May 2022 and August 2022) on 22 ponds</li> <li>Brussels_ponds_Chla_temporal.xlsx contains chlorophyll-a concentration of two ponds monitored on a recurring basis (1-2 times a month) from June 2021 to December 2022.</li> </ul> <p>All ponds have pontoons, raised above the water surface, which allow sampling at least 2m further from the banks. Water pH, temperature, conductivity and oxygen saturation level (%O<sub>2</sub>) were measured by a VWR MU 6100 H probe. Water was collected in 2L polypropylene bottles for subsequent analysis of chlorophyll a (Chl-a), total suspended matter (TSM) and dissolved nutrients (ammonium (NH<sub>4</sub><sup>+</sup>), nitrite (NO<sub>2</sub><sup>-</sup>), nitrate (NO<sub>3</sub><sup>-</sup>), soluble reactive phosphorus (SRP)). Three 50mL falcons were filled with unfiltered water and stabilised with 200µL HNO<sub>3</sub> (65%) for total phosphorus (Ptot) analysis.</p> <p>Filtration on Whatman filters 0.7µm GF/F glass microfibres with diameter of 47mm was carried out. For TSM, 1 pre-weighed filter was weighed after drying at 100°C for 48h in order to obtain the TSM concentration. For Chl-a, a filter was placed after filtration in 90% acetone to extract the Chl-a, which was then measured by fluorimetry (Kontron SFM 25 model) at an excitation length of 430nm and emission length of 664nm (Yentsch and Menzel, 1963). Nutrient concentrations were determined spectrophotometrically (Perkin-Elmer Lambda 650 S model) by coloration of the filtrates obtained after filtration through 0.7µm Whatman GF/F filters. NH<sub>4</sub><sup>+</sup> was determined by coloration with nitroprusside-hypochlorite-phenol (Grasshoff and Johannsen, 1972) at 630nm. NO<sub>2</sub><sup>-</sup> and NO<sub>3</sub><sup>-</sup> are determined before and after reduction of NO<sub>3</sub><sup>-</sup> to NO<sub>2</sub><sup>-</sup> by passage through a cadmium-copper column. The NO<sub>2</sub><sup>-</sup> is then reacted with Griess' reagent in acidic medium (Grasshoff et al., 1983) at 540nm. The SRP is determined after colorimetric reaction with ammonium molybdate, ascorbic acid and potassium antimony tartrate (Koroleff, 1983) at 885nm.</p> <p>Ptot was determined by inductively coupled plasma spectroscopy (ICP) on an ICP-OES Perkin Elmer Avio 200 model. The assay protocol was based on the US EPA (1994) method 200.7 for analysis of metals and trace elements in water by ICP with prior microwave acid digestion based on US EPA, (2007) method 3015A.</p> <p>CO<sub>2</sub> measurements were carried out on the field with a Li-Cor Li-840 IR-CO<sub>2</sub>/H<sub>2</sub>O gas analyser calibrated before each campaign, using the headspace technique with 4 polypropylene syringes (Abril et al., 2015). Samples for CH<sub>4</sub> and N<sub>2</sub>O were collected via a silicone tube into 60mL borosilicate serum bottles and poisoned with 200µL of saturated HgCl<sub>2</sub> solution. The vials were sealed with a butyl stopper and crimped with an aluminium cap. Measurements were carried out using the headspace technique (Weiss, 1974) and a gas chromatography measurement (model SRI 8610C) with a flame ionisation detector (FID) for CH<sub>4</sub> and an electron capture detector (ECD) for N<sub>2</sub>O.</p> <p> </p> <p> </p> <p>References:</p> <p>Abril, G., Bouillon, S., Darchambeau, F., Teodoru, C.R., Marwick, T.R., Tamooh, F., Omengo, Ochieng Omengo, F., Geeraert, N., Deirmendjian, L., Polsenaere, P., Borges, A.V., (2015). Technical Note : Large overestimation of p CO<sub>2</sub> calculated from pH and alkalinity in acidic , organic-rich freshwaters Biogeosciences 12, 67–78. <a href="https://doi.org/10.5194/bg-12-67-2015">https://doi.org/10.5194/bg-12-67-2015</a></p> <p>Grasshoff, K., & Johannsen, H. (1972). A new sensitive and direct method for the automatic determination of ammonia in sea water. <em>ICES Journal of Marine Science</em>, <em>34</em>(3), 516-521. <a href="https://doi.org/10.1093/icesjms/34.3.516">https://doi.org/10.1093/icesjms/34.3.516</a></p> <p>Grasshoff, K., Kremling, K., & Ehrhardt, M. (Eds.). (1983). <em>Methods of seawater analysis : </em>Determination of nitrite. John Wiley & Sons</p> <p>Koroleff, J. (1983). Determination of total phosphorus by alkaline persulphate oxidation. <em>Methods of Seawater Analysis. Verlag Chemie, Wienheim</em>, 136-138.</p> <p>U.S. EPA. 1994. “Method 200.7: Determination of Metals and Trace Elements in Water and Wastes by Inductively Coupled Plasma-Atomic Emission Spectrometry,” Revision 4.4. Cincinnati, OH. <a href="https://www.epa.gov/esam/method-2007-determination-metals-and-trace-elements-water-and-wastes-inductively-coupled">https://www.epa.gov/esam/method-2007-determination-metals-and-trace-elements-water-and-wastes-inductively-coupled</a></p> <p>U.S. EPA. 2007. “Method 3015A (SW-846): Microwave Assisted Acid Digestion of Aqueous Samples and Extracts,” Revision 1. Washington, DC <a href="https://www.epa.gov/esam/epa-method-3015a-microwave-assisted-acid-digestion-aqueous-samples-and-extracts"><em>https://www.epa.gov/esam/epa-method-3015a-microwave-assisted-acid-digestion-aqueous-samples-and-extracts</em></a></p> <p>Weiss, R. (1974). Carbon dioxide in water and seawater: the solubility of a non-ideal gas. <em>Marine chemistry</em>, <em>2</em>(3), 203-215. <a href="https://doi.org/10.1016/0304-4203(74)90015-2">https://doi.org/10.1016/0304-4203(74)90015-2</a></p> <p>Yentsch, C. S., & Menzel, D. W. (1963, July). A method for the determination of phytoplankton chlorophyll and phaeophytin by fluorescence. In <em>Deep Sea Research and Oceanographic Abstracts</em> (Vol. 10, No. 3, pp. 221-231). Elsevier. <a href="https://doi.org/10.1016/0011-7471(63)90358-9">https://doi.org/10.1016/0011-7471(63)90358-9</a></p>
Data from: dammed ponds! a study of post-fire sediment and carbon dynamics in beaver ponds and their contributions to watershed resilience
<p>Beaver ponds were surveyed as part of an effort to quantify post-fire sediment dynamics in beaver ponds. Forty-eight beaver ponds in the northern Colorado Rocky Mountains were surveyed between June and August, 2022. We quantified the current and remaining sediment storage capacities within ponds with sediment depth surveys, and we calculated sedimentation rates by analyzing stratigraphy within pond sediment cores.</p>
Odonata records and environmental data from 20 ponds in the Eddleston Water catchment (Scotland, summer 2023)
<p>This set contains data collected in 2023 in the Eddleston Water catchment for a study on the contribution of flood management ponds to dragonfly (Insecta: Odonata) diversity. Ten ponds created for Natural Flood Management as part of the <a href="https://tweedforum.org/our-work/projects/the-eddleston-water-project/">Eddleston Water Project</a> (funded by the Scottish Government and led by Tweed Forum) and ten reference ponds were surveyed. </p> <p>The following files are available (in both .csv and .txt formats):</p> <p>- "Odonata_AllStages" contains all Odonata data;<br>- "PondEnv" contains information on the surveyed ponds, including basic environmental data (e.g. surface, perimeter) and vegetation variables;<br>- "LandUse" contains the percentage of different land use categories in buffers of 5 and 100 m around the ponds;<br>- "Metadata" describes all variables found in the files mentioned above.</p> <p>Adult Odonata surveys were conducted by following the protocol of the pond biodiversity index "IBEM" (see Indermuehle et al. 2010. <a href="https://doi.org/10.23818/limn.29.08">https://doi.org/10.23818/limn.29.08</a>; and <a href="http://campus.hesge.ch/ibem/odonates.asp">http://campus.hesge.ch/ibem/odonates.asp</a>).</p> <p>Larval Odonata were sampled on a subset of 6 ponds in early June 2023. Qualitative samples were taken with a sweep net (mesh size: 500 µm, 25*18 cm frame size) close to the shore, near the land-water interface. Twenty sweeps of 1 m were conducted in each sampled pond, with the sweeps distributed among the different mesohabitats in proportion to their coverage. The content of the net was then emptied into a white tray and the aquatic macroinvertebrates were directly sorted in the field. Only Odonata larvae were picked and fixated with 70% ethanol, to be identified under the microscope. Larvae were identified to species level where possible, and to genus or family level where this was not possible.</p> <p>Land use and several vegetation variables were collected following the same protocol as in the <a href="https://ponderful.eu/">PONDERFUL</a> project.</p> <p> </p> <p> </p> <p> </p>
Exotic Laguncularia racemosa drives rapid shifts in pond-to-mangrove restoration communities
<p>The global degradation of mangrove ecosystems necessitates urgent restoration efforts. In China and many Southeast Asian regions, pond-to-mangrove restoration (PTMR) has become a key method for mangrove recovery. PTMR involves creating suitable habitats for mangroves through artificial terrain modification and planting. However, an overlooked issue is whether invasive exotic species benefit from PTMR. This study examines plant communities in a typical PTMR area, comparing community composition at four (PTMR4) and eight (PTMR8) years post-restoration. Results show that the exotic species <em>Laguncularia racemosa</em> rapidly increases in PTMR areas, significantly inhibiting native species growth and altering community composition. The relative abundance of <em>L. racemosa</em> rose from 8% at PTMR4 to 57% at PTMR8. By PTMR8, <em>L. racemosa</em> was taller than native species, with many seedlings present. Given the rapid growth and reproductive capacity of <em>L. racemosa</em>, and the high hydrological connectivity of mangrove wetlands, we recommend incorporating exotic species monitoring during PTMR. This study highlights the threat of biological invasions to ecological restoration projects, not just mangrove restoration. It emphasizes the need to prevent invasive species introduction during early restoration stages.</p>
Raw data for the application of temperature and light intensity as intermittency sensors in a temporary pond in Jamaica
<p>Data provided represent the raw data collected for the paper on the application of temperature and light intensity as intermittency sensors in a temporary pond in Jamaica.</p>
The contributions of individual traits to survival among terrestrial juvenile pond-breeding salamanders
<p>Individual survival is influenced by interactions between local environmental conditions and an organism's morphological, behavioral, and physiological traits. Studies examining the effects of individual phenotypes on survival under variable conditions are relatively rare among early transitional life stages, though the vital rates of these life stages can importantly influence population dynamics. We experimentally examined the effects of initial body mass, movement, standard metabolic rate (SMR), and respiratory surface area water loss (RSAWL) on survival in the transitional juvenile life stage of two biphasic amphibian species (Ambystoma maculatum and A. opacum) in a seven-month mark-recapture study under semi-natural conditions. Juveniles with a larger initial body mass, lower initial SMR, and/or a lower tendency to change locations had a higher likelihood of known survival. In contrast, we found no significant effect of RSAWL on juvenile survival. The relationships between individual phenotypes and survival did not differ between species, but equivalent species-specific survival rates may have been attributed to larger initial body sizes in A. maculatum and lower SMR in A. opacum. Our results illuminate the complex ways in which individual traits influence survival during the early transitional life stage of two ambystomatid species under varying abiotic conditions. More generally, our findings illustrate potential advantages of simultaneously examining multiple traits to evaluate survival.</p>
Data from: From microbes to mammals: pond biodiversity homogenization across different land-use types in an agricultural landscape
<p>Local biodiversity patterns are expected to strongly reflect variation in topography, land use, dispersal boundaries, nutrient supplies, contaminant spread, management practices and other anthropogenic influences. In contrast, studies focusing on specific taxa revealed a biodiversity homogenization effect in areas subjected to long-term intensive industrial agriculture. We investigated whether land use affects biodiversity levels and community composition (α & β diversity) in 67 kettle holes (KH) representing small aquatic islands embedded in the patchwork matrix of a largely agricultural landscape comprising grassland, forest, and arable fields. These KH, similar to millions of standing water bodies of glacial origin, spread across northern Europe, Asia, and North America, are physico-chemically diverse, differ in the degree of coupling with their surroundings. We assessed biodiversity patterns of eukaryotes, <i>Bacteria</i> and <i>Archaea</i> in relation to environmental features of the KH, using deep-amplicon-sequencing of environmental DNA (eDNA). First, we asked whether deep sequencing of eDNA provides a representative picture of KH biodiversity across the <i>Bacteria</i>, <i>Archaea</i>, and Eukaryotes. Second, we investigated if and to what extent KH biodiversity is influenced by the surrounding land-use. Our data shows that deep eDNA amplicon sequencing is useful for in-depth assessments of cross-domain biodiversity comprising both micro- and macro-organisms, but, has limitations with respect to single-taxa conservation studies. Using this broad method, we show that sediment eDNA, integrating several years to decades, depicts the history of agricultural land-use intensification. The latter, coupled with landscape wide nutrient enrichment (including by atmospheric deposition), groundwater connectivity between KH and organismal (active and passive) dispersal in the tight network of ponds, resulted in a biodiversity homogenization in the KH water, levelling off today's detectable differences in KH biodiversity between land-use types.</p>
Drivers of zooplankton dispersal in a pond metacommunity
<p>Dispersal success is integral to survival of species in metacommunities. For species that disperse passively like zooplankton, reliance on dispersal vectors is paramount for colonization of water bodies. Zooplankton species engage in dispersal in time (resting eggs) and space (overland). For dispersal in time, resting eggs are deposited in the sediment during adverse conditions and recolonize aquatic systems when beneficial conditions resume</p>
Area, connectivity and plant life strategy diversity and abundance in temporary ponds of Southeastern Carpathians (Romania, Europe)
<p><span>We used this dataset to determine whether area and connectivity of temporary ponds can predict plant species diversity, and the diversity and abundance of different plant life histories within the ponds. The studied system is located in the Ciuc Basin of the </span>Southeastern Carpathian Mountains, Romania. We collected data on the macrophyte species diversity of 28 temporary ponds between 2006-2009. Plant species identified in the ponds were assigned into one of the social behaviour types proposed by Borhidi (1995), which describe plant-habitat interactions within a framework extended from Grime's evolutionary life strategies (Grime 1988), as follows: competitors, stress tolerants (generalists or specialists) and ruderals (natural pioneers i.e., plants of habitats disturbed by natural factors, and plants of habitats disturbed by human factors, classified as either: disturbance tolerants, native weeds, naturalised crops, adventitious weeds, ruderal competitors, alien competitors). We expressed species diversity as observed species richness (total number of species) and Shannon diversity index, and abundance as cumulative vegetation cover, calculated for each pond and for each social behaviour type separately. We calculated pond area using the short and long axis of the ellipse that best approximated the pond shape. Pond connectivity with the Olt river was defined as the pond present and respectively past (preceding river regulation) geographic distance from the Olt river, measured between the pond GPS coordinate and the nearest point of the river.</p>
Figure 1 in Physical clutter affects the use of artificial ponds by the Lesser Bulldog Bat Noctilio albiventris (Chiroptera: Noctilionidae)
Figure 1. Artificial pond at Universidad de los Llanos where the experiments using Noctilio albiventris were done. In the image is shown the situation using the highest density of obstacles.
Figure 2 in Physical clutter affects the use of artificial ponds by the Lesser Bulldog Bat Noctilio albiventris (Chiroptera: Noctilionidae)
Figure 2. Number of passes (A) and feeding buzzes (B) made by Noctilio albiventris in five-minutes recordings while foraging over an artificial pond with different levels of clutter: without obstacles (control), with one line of obstacles, and with two lines of obstacles. There were only significant differences between the control and the treatment with the highest clutter density. The line inside the boxes is the median, whereas the top and bottom are the 75 and 25 percentiles, respectively; the whiskers indicate the 90 and 10 percentiles, and the points are outliers.
Walden Pond Cabin
This is a replica of author Henry David Thoreau's cabin that is located at Walden Pond in eastern Massachusetts. Thoreau built his cabin (which does not exist anymore) in 1845. In real life the roof is not as melty and uneven as it appears here. :-) I was a bit restricted with the angles that I could take photos from and the roof on one side was a casualty of that limitation. Photographed in October 2017, 265 iPhone 7 photos. Source: Objaverse 1.0 / Sketchfab
Datasets and code for Dražina et al. 2023: Unravelling the Role of Top Predators and Macrophytes in Mediterranean Ponds: The Ecological Significance of Rotifers
<p>Dataset and R code to accompany manuscript 'Unravelling the Role of Top Predators and Macrophytes in Mediterranean Ponds: The Ecological Significance of Rotifers' accepted for publication in the journal Hydrobiologia</p>
Wetland creation and reforestation of legacy surface mines in the Central Applachian Region (USA): A potential climate-adaptation approach for pond-breeding amphibians?
<p>Habitat restoration and creation within human-altered landscapes can buffer the impacts of climate change on wildlife. The Forestry Reclamation Approach (FRA) is a coal surface mine reclamation practice that enhances reforestation through soil decompaction and the planting of native trees. Recently, wetland creation has been coupled with FRA to increase habitat available for wildlife, including amphibians. Our objective was to evaluate the response of pond-breeding amphibians to the FRA by comparing species occupancy, richness, and abundance across two FRA age-classes (2–5-year and 8–1—year reclaimed forests), traditionally reclaimed sites that were left to naturally regenerate after mining, and in mature, unmined forests in the Monongahela National Forest (West Virginia, USA). We found that species richness and occupancy estimates did not differ across treatment types. Spotted Salamanders (<em>Ambystoma maculatum</em>) and Eastern Newts (<em>Notophthalmus viridescens</em>) had the greatest estimated abundances in wetlands in the older FRA treatment. Additionally, larger wetlands had greater abundances of Eastern Newts, Wood Frogs (<em>Lithobates sylvaticus</em>), and Green Frogs (<em>L. clamitans</em>) compared to smaller wetlands. Our results suggest that wetland creation and reforestation increases the number of breeding sites and promotes microhabitat and microclimate conditions that likely maximize the resilience of pond-breeding amphibians to anticipated climate changes in the study area.</p>
Data from: Environmentally independent selection for hybrids between divergent freshwater stickleback lineages in semi-natural ponds
<p>Hybridization following secondary contact of genetically divergent populations can influence the range expansion of invasive species, though specific outcomes depend on the environmental dependence of hybrid fitness. Here, using two genetically and ecologically divergent threespine stickleback lineages that differ in their history of freshwater colonization, we estimate fitness variation of parental lineages and hybrids in semi-natural freshwater ponds with contrasting histories of nutrient loading. In our experiment, we found that fish from the older freshwater lineage (Lake Geneva) and hybrids outperformed fish from the younger freshwater lineage (Lake Constance) in terms of both growth and survival, regardless of the environmental context of our ponds. Across all ponds, hybrids exhibited the highest survival. Although wild- caught adult populations differed in their functional and defence morphology, it is unclear which of these traits underlie the fitness differences observed among juveniles in our experiment. Overall, our work suggests that when hybrid fitness is insensitive to environmental conditions, as observed here, introgression may promote population-expansion into unoccupied habitats and accelerate invasion success.</p>
Fig 4 in Comparative study on the survival and growth performance of white shrimp Penaeus vannamei in ponds cultured with hatchery and nursery reared post larvae
Fig 4: Dissolved Oxygen (D.O) of P.Vannamei culture at Yazali during the year 2018
Fig 5 in Comparative study on the survival and growth performance of white shrimp Penaeus vannamei in ponds cultured with hatchery and nursery reared post larvae
Fig 5: Growth of P. vannamei (in grams) at Yazali (Guntur) in summer crop during the year 2018.
Fig 6 in Comparative study on the survival and growth performance of white shrimp Penaeus vannamei in ponds cultured with hatchery and nursery reared post larvae
Fig 6: Growth of P. vannamei (in grams) at Yazali (Guntur) in winter crop during the year 2018
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.