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10,016 results for “Observation”
Spatial behavior and diet data for discrete-choice analyses: data observed and classified from GPS video camera collars worn by female members of the Fortymile Caribou Herd across Alaska, USA, and Yukon, Canada
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A new Double Observer based census framework to improve abundance estimations in mountain ungulates and other gregarious species with a reduced effort
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Data for: Ocean surface wave slopes and wind-wave alignment observed in Hurricane Idalia
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Data for a meta-analysis of the effect of kelp forests on fish communities around the world from observational and experimental studies spanning 1983-2020
Data for Pérez-Matus, A., Micheli, F., Konar, B., Shears, N., Low, N., Okamoto, D., Wernberg, T., Krumhansl, K., Ling, S., Kinsgford, M., Navarrete-Fernandez, T., Ruz, C., and Byrnes, J. 2024. Kelp forests as nursery and foundational habitat for reef fish. Ecology. For the definitive analysis, see the paper. Code is at https://github.com/jebyrnes/fish_kelp_meta. This data set concerns the effects of kelp on fish community composition. Data was mined as part of the National Center for Ecological Analysis and Synthesis (NCEAS) working group on "Global impacts of climate change on kelp forest ecosystems." It consists of digitized information from studies searched (see methods) examining fish community composition with and without kelp. To summarize the study, conservation of marine biodiversity requires an understanding of the habitats needed to support and replenish species of interest. It also requires knowledge about the abundance and diversity of multi-species assemblages. Variation in the distribution and composition of kelp forests, one of the most productive marine coastal habitats globally, can have major influences on reef fishes – a group of ecologically and socio-economically important species. In the face of widespread and escalating loss of kelp forests, quantification of these effects is urgently needed to assess and project cascading impacts on biodiversity. Here, we evaluate relationships between kelp forests and associated reef fish populations using a global meta-analysis of experimental kelp removals and comparative surveys of kelp and adjacent non-kelp habitats. These analyses show that kelp forests increase the abundance of reef fishes, though the significance of this effect varied depending on the structural complexity of kelp forests. In experimental studies, kelp forests have a significant positive effect on fish species richness, revealing that kelp act as true foundation species by supporting the diversity of associated multi-species assemblag
Phenological stages of deciduous plants were observed at a long term experimental moist acidic tussock tundra site, Arctic LTER 1996 Toolik Lake, AK.
Phenological stages of deciduous plants were observed at a long term experimental moist acidic tussock tundra site (Arctic LTER) near Toolik Field Station, AK. Also, ITEX maximum growth measurements were recorded on August 19th (moist tussock tundra). Experimental treatments at each site included factorial NxP, greenhouse and shadehouse and were begun in 1989. See 96gspheg.html and 96gsphsg. html for phenological data on evergreen and sedge species.
Phenological stages of evergeen plants were observed at a long term experimental moist tussock tundra site (Arctic LTER) 1996 near Toolik Lake, AK.
Phenological stages of evergeen plants were observed at a long term experimental moist acidic tussock tundra (Arctic LTER) in 1996 near Toolik Lake, AK. Also, ITEX maximum growth measurements were recorded on August 19th (moist tussock tundra). Experimental treatments at each site included factorial NxP, greenhouse and shadehouse and were begun in 1989. See 96gsphdc and 96gsphsg for phenological data on deciduous and sedge species.
Phenological stages of sedges were observed at a long term experimental moist tussock tundra site and a long-term experimental wet sedge tundra sites (Arctic LTER) for 1996 near Toolik Lake, AK.
Phenological stages of sedges were observed at a long term experimental moist tussock tundra site and a long-term experimental wet sedge tundra sites near Toolik Lake, AK. Also, ITEX maximum growth measurements were recorded on August 19th (moist tussock tundra). Experimental treatments at each site included factorial NxP, greenhouse and shadehouse and were begun in 1989. See 96gsphdc.html and 96gsphsg.html for phenological data on deciduous and evergeen species.
The co-occurrence of MHW characteristics and satellite-observed Chlorophyll concentration in the California Current System,1996~2020
The characteristics of each MHW event and the most negative anomalies of satellite-observed Chlorophyll concentration in each MHW event in the Southern California Current System (30-35.5°N, 117-125 °W) were calculated.
Ground observations of spring leaf emergence phenology at eight sites in and near the Coweeta basin (2011-2012).
This study was conducted to evaluate the utility of satellite data from the MODIS sensor to predict the timing of spring leaf emergence in the Southern Appalachians. Eight ground sampling sites were established on square plots (231 x 231 meters) that corresponded to the dimensions of MODIS satellite pixels. Each site was visited approximately every other day and observations on the status of leaf emergence in the canopy and understory were collected at 30 subsampling points within each site. Observations consisted of visual estimates of leaf emergence status on marked trees and shrubs, as well as digital photographs of the canopy and understory taken from consistent locations at each subsampling point.
PIE LTER bird observations associated with marsh sites used in space for time sea level rise study, Rowley, MA.
This dataset contains observations of birds foraging at high and low tide at space for time substition plots in tidal creek marshes off the Rowley River and Plum Island Sound in Rowley Massachusetts. The space for time study uses an intensive and comprehensive approach to compare low elevation, Spartina alterniflora marsh areas to higher elevation Spartina patens marsh areas. Birds were observed using timed interval observations, with one sampling bout per tide per site. Other related data files include: HTL-RO-ST-MAR-Sites, HTL-RO-ST-MAR-Biomass, HTL-RO-ST-MAR-Quads, HTL-RO-ST-MAR-Sediments, HTL-RO-ST-MAR-Bites, HTL-RO-ST-MAR-Sticky, HTL-RO-ST-MAR-Decomp, HTL-RO-ST-MAR-Traps, HTL-RO-ST-MAR-Deep_pitfalls
Bird observations collected by volunteers along census tracks in the Parker River National Wildlife Refuge, intervals of observations are approximately twice a month.
This file contains bird observations collected by volunteers along census tracks in the Parker River National Wildlife Refuge, Massachusetts. Intervals of observations are approximately twice a month.
Bird observations on the tidal flats of the Virginia Coast Reserve, 2016-2018
This dataset contains data on observations of birds on tidal flats along the Virginia portion of the Delmarva Peninsula, along the Atlantic side as part of the dissertation research of Alice Besterman. The first data table (ShorebirdswithZerosV1a.csv) has summary information on bird activities broken down by patch type and relation to tide. Shorebirds were surveyed on 9 intertidal mudflats from late April through end of May 2016. Surveys conducted within 3-5 hours of low tide. Scans last 15 minutes or less. Data table 2 (2018_patchscale_long.csv) contains data from surveys of shorebirds on 36 intertidal mudflats. Surveys conducted in May 2018 at low tide. Tidal flats were visited a single time, and scanned a single time. Scans lasted 15 minutes or less. Only target species were counted and microhabitat-use was recorded. A "wide" version of the data with columns of species/cover is also provided as a .zip file. Data table 3 (ContinSampFinala.csv) contains data collected during focal behavioral observations of shorebirds on intertidal mudflats. Data were collected from 9 sites in 2016 between late April and the end of May during low tide. Observations lasted up to 3 minutes or less if observer lost sight of the bird or bird left the site. Data table 4 (allbirds2a.csv) contains surveys of shorebirds using mudflats in May 2018. Sites were visited a single time during low tide. Tidal flats were scanned a single time, and scans lasted 15 minutes or less. This data table differs from Data table 2 in that all shorebird species of interest were counted (not just target species for behavioral analyses), and microhabitat-use data were not included. Data table 5 (InstantSampFinala.csv) contains data collected during focal behavioral observations of shorebirds on intertidal mudflats. Data were collected from 9 sites in 2016 between late April and the end of May during low tide. Observations lasted up to 3 minutes or less if observer lost sight of the bird or bird left the site.
The observed data used in paper titled "A hydrographic method to identify groundwater net recharge, barometric effect, and evapotranspiration from a complicated semidiurnal water table fluctuation"
<p>The water level and atmospheric pressure within the monitoring well located the semi-arid loess hilly-gully region on the piedmont of western Shaanxi Province, China (34°18′36″ N, 107°07′55″ E), were automatically monitored at 20-min intervals by the Levelogger and Barologger, respectively. These data were used as a case example to state a method of estimating groundwater net recharge rate, barometric efficiency and hourly-scaled groundwater evapotranspiration rate.</p>
Dataset of GFRP cross-plies laminates observations for study of fiber/matrix interface crack growth
<p>This is the dataset which has been developed during the project course T009T at LTU (Luleå Tekniska Universitet) from September to December 2019.</p> <p>It contains mechanical data and microscopic observations done on GFRP cross-plies laminates [0,902]s and [0,903]s at different strain levels, from 0.3% to 1.0%.</p>
High-CAPE summer convection in large-domain large-eddy simulations with ICON - model and observational data sets
<p>Data sets including all observational and ICON model data for publication in Atmosperic Chemistry and Physics Journal (ACP) - "High-CAPE summer convection in large-domain large-eddy simulations with ICON"</p>
Model outputs: Vegetation biomass change in China in the 20th century: An assessment based on a combination of multi-model simulations and field observations
<p>This dataset contains six model outputs of vegetation biomass on plant functional type level and total vegetation biomass on grid cell with and without bias-correction in different sensitivity experiments, as described in Readme.txt.</p>
Dynamic spectrum of 2MASSW J1047539+212423 observed by the Karl G. Jansky Very Large Array, as a Numpy save file
<p>These files contains the dynamic spectrum data of the brown dwarf 2MASSW J1047539+212423 as extracted from observations made with the Karl G. Jansky Very Large Array. The observations are described in Allers et al. (2020; forthcoming) and the analysis scripts are made available in the Git repository https://github.com/johannavos/BDwindspeeds .</p>
Decoded telegrams of surface weather observations in the Southern Ocean on board the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE) in the austral summer of 2016/2017.
<p><strong>Dataset abstract</strong></p> <p>This dataset contains decoded reports of surface weather observations in the Southern Ocean made aboard the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE), in the austral summer of 2016/2017. The observations were made by a meteorologist on board the ship and sent as telegrams encoded with World Meteorological Organisation (WMO) FM 13 code form. Posteriorly, the telegrams were decoded to produce this dataset.</p> <p>The telegrams were recorded on a 3-hourly basis and contain information about present and past weather; latitude, longitude, speed and direction of the ship; visibility; type, height and amount of clouds; speed and direction of wind; air, dew-point and sea-surface temperatures; barometric pressure; period, height and direction of waves; concentration of sea ice; etc. For more information on this type of report, please see the WMO Manual on Codes (WMO-No.306), Volume I.1, Part A. The original encoded files have been published separately (Veledin and Gorodetskaya, 2020; DOI 10.5281/zenodo.3734884).</p> <p>Data files have undergone no processing or quality-checking, therefore, if the variable you need is available in another ACE dataset, it is recommended to use the quality-checked data. Quality-checked meteorological data collected during ACE have been published separately (Landwehr et al., 2019; DOI 10.5281/zenodo.3379590).</p> <p><strong>Dataset contents</strong></p> <ul> <li>ACE_telegram_decoded_YYYY_MM_DD_HHh.txt, data file, ASCII comma-separated</li> <li>README.txt, metadata, text file</li> <li>data_file_header.txt, metadata, text file</li> <li>Telegram_code_format.pdf, metadata, portable document format</li> </ul> <p><strong>Dataset license</strong></p> <p>This set of decoded meteorological telegrams are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full description can be found at https://creativecommons.org/licenses/by/4.0/</p>
Ground-based observations of aerosols and trace gases at a remote site in Taiwan in the spring of 2017
<p>Intensive measurements of aerosols were conducted at a remote site (Cape Fuguei, 25.30N, 121.54E) in Taiwan in the spring of 2017. A laser-induced incandescence - mass spectrometric analyzer (LII-MS) was used to measure the chemical composition of aerosols internally or externally mixed with black carbon. Meteorological parameters, trace gases including O<sub>3</sub>, NO<sub>x</sub>, SO<sub>2</sub>, and CO, and PM<sub>2.5</sub> mass concentration were also measured at the site.</p>
Original telegrams of surface weather observations in the Southern Ocean on board the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE) in the austral summer of 2016/2017.
<p><strong>Dataset abstract</strong></p> <p>This dataset contains original reports of surface weather observations in the Southern Ocean made aboard the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE), in the austral summer of 2016/2017. The observations were made by a meteorologist on board the ship and encoded with FM 13–XIV Ext. SHIP code form (Report of surface observation from a sea station). The encoded telegrams were sent to the World Meteorological Organisation (WMO) and archived on the ship.</p> <p>The telegrams were usually recorded on a 3-hourly basis (at 0000, 0300, 0600, 0900, 1200, 1500, 1800, 2100 UTC) and on some dates on a 6-hourly basis. They contain information about present and past weather; latitude, longitude, speed and direction of the ship; visibility; type, height and amount of clouds; speed and direction of wind; air, dew-point and sea-surface temperatures; barometric pressure; period, height and direction of waves; concentration of sea ice; information about land ice. Data coverage is from November 2016 until April 2017, with some data missing from February and March.</p> <p>For more information on this type of report, please see the WMO Manual on Codes (WMO-No.306), Volume I.1, Part A:<br> https://library.wmo.int/index.php?lvl=notice_display&id=13617#.XoHf4oW3Ih4</p> <p>Data files have undergone no processing or quality-checking, therefore, if the variable you need is available in another ACE dataset, it is recommended to use the quality-checked data. These telegrams have been decoded and are available in another related dataset.</p> <p><strong>Dataset contents</strong></p> <ul> <li>UBXH3mmdd.HHh, data file, text file</li> <li>README.txt, metadata, text file</li> </ul> <p><strong>Dataset license</strong></p> <p>This set of original meteorological telegrams are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full description can be found at https://creativecommons.org/licenses/by/4.0/</p>
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.