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15,542 results for “How long”
Data from: Comparative impacts of long-term trends in snowmelt and species interactions on plant population dynamics
Open the record for dataset details and reuse information.
Proximity and abundance of mother trees affects recruitment patterns in a long-term tropical forest restoration study
Open the record for dataset details and reuse information.
Yale-Post Long-Term Study Lakes, CT: chlorophyll, 2004-2013
Long term data for 6 lakes: Bridge, Dodge, Rogers, Pattagansett, Quonnipaug, and Hayward. Data for 13 other lakes included with the long term data. This was collected for a study which is outlined in Post et al. 2008. Data collection is currently ongoing only, but only for the 6 long term study lakes. They are a couple years behind on analysis and so data are only available through 2009 (per communication with dataset owner). However, for Linsley Lake, data goes through 2013 for Chlorophyll-a, corrected for pheophytin.
Yale-Post Long-Term Study Lakes, CT: nutrients, 2005-2010
Long term data for 6 lakes: Bridge, Dodge, Rogers, Pattagansett, Quonnipaug, and Hayward. Data for 13 other lakes included with the long term data. This was collected for a study which is outlined in Post et al. 2008. Data collection is currently ongoing, but only for the 6 long term study lakes.
Yale-Post Long-Term Study Lakes, CT: secchi, 2004-2009
Long term data for 6 lakes: Bridge, Dodge, Rogers, Pattagansett, Quonnipaug, and Hayward. Data for 13 other lakes included with the long term data. This was collected for a study which is outlined in Post et al. 2008. Data collection is currently ongoing only, but only for the 6 long term study lakes. They are a couple years behind on analysis and so data are only available through 2010 (per communication with dataset owner).
Paul Lake (MI): long-term reference lake in Cascade Project, 1984-2007
Lake data were obtained from Stephen Carpenter and from the long-term study of lakes at the University of Notre Dame Environmental Research Center (UNDERC) known informally as the “Cascade Project.” This project has resulted in multiple publications, including Carpenter & Kitchell’s 1993 book “The Trophic Cascade in Lakes.” Chapter 2 of this book has descriptive information about the study site. Routine sampling occurred weekly-monthly during summer months, with a few rare inclusions outside of the May-Aug period. Samples were collected from a fixed transect in the lake. Sampling frequency and variables that were measured/reported vary from year to year as a function of the specific focus of the active grant at the time (and budgetary constraints). Samples were collected either at the surface (reported as 0 m) or were integrated samples for the epilimnion (referred to as PML, or pool mixed layer by this group) with water collected using a Van Dorn bottle from 0, 1, and 2 m (usually-or from top, middle, and bottom of mixed layer) and pooling equal volumes of water from these three depths.
Adirondack Lakes Long Term Monitoring (NY), 1992-2011
This data release represents raw values through final quality assurance. Eight of the original 17 ALTM lake sampling sites established by Syracuse University in 1982 were located some distance downstream from the main lakes usually in proximity to a road. These sites included: Black Pond, Bubb Lake, Cascade Lake, Constable Lake, Otter Lake, Squash Pond, West Pond and Windfall Pond. In 1993, the expanded ALTM project began to collect additional samples upstream of the original roadside sites at the main lake outlets. The ALTM lakes are sampled monthly. Lakes with no outlets and those accessed by helicopter are sampled at the deepest part of hte lake at a depth of 0.5 m with a Kemmerer sampler. All other sites are sampled at the outlet by surface grab method. Samples are analyzed at the ALSC laboratory in Ray Brook, NY. There are 4 lakes with recent liming histories: 030172 Little Clear; 040576 Woods; 040905 Barnes and 060182 Little Simon.
Weather Data, 1940-2016, Adirondack Long-Term Ecological Monitoring Program by Adirondack Ecological Center of the State University of New York College of Environmental Science and Forestry, Newcomb, New York, USA
These datasets include information collected from 1940 to 2016 in or around Huntington Wildlife Forest at the Adirondack Ecological Center in Newcomb, New York. Data were collected daily and include minimum and maximum daily temperature, precipitation, snowfall, and sometimes additional measurements (e.g., wind direction, weather events). These data were collected as part of the Adirondack Long Term Ecological Monitoring Program (ALTEMP).
Upper Midwest Long-Term Monitoring (UMWLTM) Program
The Upper Midwest Long-term Monitoring Program lakes were initially part of a larger EPA-funded project (http://www.epa.gov/airmarkets/assessments/TIMELTM.html) to investigate trends in the acid-base chemistry of lakes in sensitive regions of the US. At the start of the project in 1983, the UMW lakes included lakes in Voyageurs National Park in Minnesota, north-central Wisconsin, and the upper peninsula of Michigan. The lakes represent low alkalinity systems considered most sensitive to acid deposition, which increased from east to west across the 3-state region. Lakes in Wisconsin and Michigan were primarily seepage lakes. Over time the sampling frequency declined (from spring, summer and autumn to only autumn) and lakes were dropped from the initial set of lakes due to funding constraints. The longest period of record is from 1983 to 2000.
GIS Shapefile - Long Term Sampling Grid, 100 Meters, Baltimore MSA - BES Main Study Area
Long term sampling framework for the Baltimore MSA comprised of contiguous 100 meter grid cells. Used for: telephone survey, field observation survey (observational and photo data), and key informant photo-documentation (text / narrative and photo data). A unique ID, 'GridCell', is used to establish the relationship between this layer and the field data. This is part of a collection of Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase itself is available online at beslter.org or lternet.edu. It is considerably large. Upon request, it can be shipped to you on media, such as a flash drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful.
GIS Shapefile - Long Term Sampling Grid, 300 Meters, Baltimore MSA - BES Main Study Area
Long term sampling framework for the Baltimore MSA comprised of contiguous 300 meter grid cells. Used for: telephone survey, field observation survey (observational and photo data), and key informant photo-documentation (text / narrative and photo data). A unique ID, 'GridCell', is used to establish the relationship between this layer and the field data. This is part of a collection of Baltimore Ecosystem Study metadata records that point to a geodatabase. The geodatabase itself is available online at beslter.org or lternet.edu. It is considerably large. Upon request, it can be shipped to you on media, such as a flash drive. The geodatabase is roughly 51.4 Gb in size, consisting of 4,914 files in 160 folders. Although this metadata record and the others like it are not rich with attributes, it is nonetheless made available because the data that it represents could be indeed useful.
A 6500-year long isotope data and radio carbon ages at treeline from Swampbuggy and Nutella Lakes in central Alaska
Isotope data and radiocarbon ages
Survey 200 long term study of multiple sites in central Arizona-Phoenix: trees
The Ecological Survey of Central Arizona (ESCA) is an extensive field survey and integrated inventory designed to capture key ecological indicators of the CAP LTER study area consisting of the urbanized, suburbanized, and agricultural areas of metropolitan Phoenix, and the surrounding Sonoran desert. The survey is conducted every five years at approximately 200 sample plots (30m x 30m) that were located randomly using a tessellation-stratified dual-density sampling design. Study plots cover habitats throughout the CAP LTER study area ranging from native Sonoran desert sites to residential yards to an airport tarmac. Measurements include an inventory of all plants (identified to the lowest possible taxonomic unit, typically species), plant biovolume, soil coring for physicochemical properties, arthropod sweep-net sampling, photo documentation, and a visual survey of site and area characteristics. The objectives of the survey are to (1) characterize patches in terms of key biotic, physical, and chemical variables, and (2) examine relationships among land use, general plant diversity, native plant diversity, plant biovolume, soil nutrient status, and social-economic indices along an indirect urban gradient. Survey 200 was the original name of the project, and it was renamed to ESCA following the survey conducted in 2015. The data set here includes a subset of information from the Survey200/ESCA focusing exclusively on measured and counted trees in the survey plots. Investigators interested in more recent tree survey data, or other variables measured as part of ESCA should search the data catalog for 'ecological survey of central arizona' or 'survey 200'.
Greenhouse test of plant ecophysiological traits or responses to nitrogen:Effects of Long Term Fertilization and Oak Canopy Cover on Plant Communities and Ecosystem Processes
In 1996 E142 was established in field D on top of the E004 macroplots. E004 was conducted in fields A, B, C and D by Dave Tilman. The purpose of E004 was to see what effect NH4NO3 addition has on large areas over a longer period of time with exposure to naturally-occurring levels of herbivory. The nutrient addition treatments in E004, E142 plots have been applied annually since 1982. These experiments, along with others at Cedar Creek, examine the community and ecosystem consequences of chronic nutrient loading.
Long-term Intersite Decomposition Team (LIDET) Plant Litter Data at the Sevilleta National Wildlife Refuge, New Mexico (1990-2001)
Sevilleta data from a study testing the degree to which substrate quality and macroclimate control the carbon and nitrogen dynamics of decomposing leaf, wood, and fine-root litter in a 10-year, 28 site (17 LTER) team experiment. http://andrewsforest.oregonstate.edu/data/abstract.cfm?dbcode=TD023&topnav=97
Figure 1 from: Nair P, Huertas M, Nowlin WH (2020) Metabolic responses to long-term food deprivation in subterranean and surface amphipods. Subterranean Biology 33: 1-15. https://doi.org/10.3897/subtbiol.33.48483
Figure 1 Oxygen consumption in darkness for Stygobromus pecki and Synurella at 23 °C. Values are means ± Standard Error Means (SEM) for n = 5 animals.
Figure 2 from: Nair P, Huertas M, Nowlin WH (2020) Metabolic responses to long-term food deprivation in subterranean and surface amphipods. Subterranean Biology 33: 1-15. https://doi.org/10.3897/subtbiol.33.48483
Figure 2 Changes in the levels of body metabolites in Stygobromus pecki and Synurella sp. A Carbohydrates B proteins C lipids concentrations during long-term food deprivation at 23 °C in darkness. Values are means ± SEM for n = 5 replicates. (*) indicates significance at P < 0.05 for the main effects of Treatment, Time and the Time × Treatment interaction.
Display of the Crab long-term (15 year time span) spectrum extracted from a sample of 50 randomly selected ScWs.
<p><a href="https://www.astro.unige.ch/cdci/astrooda_?src_name=Crab&RA=83.633080&DEC=22.014500&T1=2003-03-15T23:27:40.0&T2=2018-03-16T00:03:15.0&T_format=isot&instrument=isgri&osa_version=OSA10.2&radius=15&E1_keV=20&E2_keV=40&product_type=isgri_spectrum&catalog_selected_objects=1,2,3,4&selected_catalog=%7B%22cat_column_descr%22:%5B%5B%22meta_ID%22,%22%3Ci8%22%5D,%5B%22src_names%22,%22%7CS18%22%5D,%5B%22significance%22,%22%3Ef4%22%5D,%5B%22ra%22,%22%3Ef4%22%5D,%5B%22dec%22,%22%3Ef4%22%5D,%5B%22NEW_SOURCE%22,%22%3Ei2%22%5D,%5B%22ISGRI_FLAG%22,%22%3Ci8%22%5D,%5B%22FLAG%22,%22%3Ci8%22%5D,%5B%22ERR_RAD%22,%22%3Cf8%22%5D%5D,%22cat_column_list%22:%5B%5B1,2,3,4%5D,%5B%221A+0535%2B262%22,%224U+0517%2B17%22,%22Crab%22,%22H+0614%2B091%22%5D,%5B116.77162170410156,7.909553527832031,1232.6466064453125,8.148767471313477%5D,%5B84.72620391845703,77.66708374023438,83.63129425048828,94.25425720214844%5D,%5B26.314136505126953,16.48775863647461,22.01542854309082,9.165886878967285%5D,%5B-32768,-32768,-32768,-32768%5D,%5B2,2,2,2%5D,%5B0,0,0,0%5D,%5B0.0002800000074785203,0.0002800000074785203,0.0002800000074785203,0.0002800000074785203%5D%5D,%22cat_column_names%22:%5B%22meta_ID%22,%22src_names%22,%22significance%22,%22ra%22,%22dec%22,%22NEW_SOURCE%22,%22ISGRI_FLAG%22,%22FLAG%22,%22ERR_RAD%22%5D,%22cat_coord_units%22:%22deg%22,%22cat_frame%22:%22fk5%22,%22cat_lat_name%22:%22dec%22,%22cat_lon_name%22:%22ra%22%7D">https://www.astro.unige.ch/cdci/astrooda_?src_name=Crab&RA=83.633080&DEC=22.014500&T1=2003-03-15T23:27:40.0&T2=2018-03-16T00:03:15.0&T_format=isot&instrument=isgri&osa_version=OSA10.2&radius=15&E1_keV=20&E2_keV=40&product_type=isgri_spectrum&catalog_selected_objects=1,2,3,4&selected_catalog={%22cat_column_descr%22:[[%22meta_ID%22,%22%3Ci8%22],[%22src_names%22,%22|S18%22],[%22significance%22,%22%3Ef4%22],[%22ra%22,%22%3Ef4%22],[%22dec%22,%22%3Ef4%22],[%22NEW_SOURCE%22,%22%3Ei2%22],[%22ISGRI_FLAG%22,%22%3Ci8%22],[%22FLAG%22,%22%3Ci8%22],[%22ERR_RAD%22,%22%3Cf8%22]],%22cat_column_list%22:[[1,2,3,4],[%221A+0535%2B262%22,%224U+0517%2B17%22,%22Crab%22,%22H+0614%2B091%22],[116.77162170410156,7.909553527832031,1232.6466064453125,8.148767471313477],[84.72620391845703,77.66708374023438,83.63129425048828,94.25425720214844],[26.314136505126953,16.48775863647461,22.01542854309082,9.165886878967285],[-32768,-32768,-32768,-32768],[2,2,2,2],[0,0,0,0],[0.0002800000074785203,0.0002800000074785203,0.0002800000074785203,0.0002800000074785203]],%22cat_column_names%22:[%22meta_ID%22,%22src_names%22,%22significance%22,%22ra%22,%22dec%22,%22NEW_SOURCE%22,%22ISGRI_FLAG%22,%22FLAG%22,%22ERR_RAD%22],%22cat_coord_units%22:%22deg%22,%22cat_frame%22:%22fk5%22,%22cat_lat_name%22:%22dec%22,%22cat_lon_name%22:%22ra%22}</a></p>
Crab long-term (15 year time span) lightcurve extracted froma sample of 50 randomly selected ScWs in 30-100 keV band, usingOSA10.2.
<p><a href="https://www.astro.unige.ch/cdci/astrooda_?src_name=Crab&RA=83.633080&DEC=22.014500&E1_keV=30&E2_keV=100&T1=2003-03-15T23:27:40.0&T2=2018-03-16T00:03:15.0&T_format=isot&catalog_selected_objects=1,2,3,4&detection_threshold=7.5&instrument=isgri&osa_version=OSA10.2&product_type=isgri_lc&time_bin=10000&time_bin_format=sec&query_status=ready&query_type=Real&radius=15&use_scws=no&selected_catalog=%7B%22cat_column_descr%22:%5B%5B%22meta_ID%22,%22%3Ci8%22%5D,%5B%22src_names%22,%22%7CS18%22%5D,%5B%22significance%22,%22%3Ef4%22%5D,%5B%22ra%22,%22%3Ef4%22%5D,%5B%22dec%22,%22%3Ef4%22%5D,%5B%22NEW_SOURCE%22,%22%3Ei2%22%5D,%5B%22ISGRI_FLAG%22,%22%3Ci8%22%5D,%5B%22FLAG%22,%22%3Ci8%22%5D,%5B%22ERR_RAD%22,%22%3Cf8%22%5D%5D,%22cat_column_list%22:%5B%5B1,2,3,4%5D,%5B%221A+0535%2B262%22,%224U+0517%2B17%22,%22Crab%22,%22H+0614%2B091%22%5D,%5B116.77162170410156,7.909553527832031,1232.6466064453125,8.148767471313477%5D,%5B84.72620391845703,77.66708374023438,83.63129425048828,94.25425720214844%5D,%5B26.314136505126953,16.48775863647461,22.01542854309082,9.165886878967285%5D,%5B-32768,-32768,-32768,-32768%5D,%5B2,2,2,2%5D,%5B0,0,0,0%5D,%5B0.0002800000074785203,0.0002800000074785203,0.0002800000074785203,0.0002800000074785203%5D%5D,%22cat_column_names%22:%5B%22meta_ID%22,%22src_names%22,%22significance%22,%22ra%22,%22dec%22,%22NEW_SOURCE%22,%22ISGRI_FLAG%22,%22FLAG%22,%22ERR_RAD%22%5D,%22cat_coord_units%22:%22deg%22,%22cat_frame%22:%22fk5%22,%22cat_lat_name%22:%22dec%22,%22cat_lon_name%22:%22ra%22%7D">https://www.astro.unige.ch/cdci/astrooda_?src_name=Crab&RA=83.633080&DEC=22.014500&E1_keV=30&E2_keV=100&T1=2003-03-15T23:27:40.0&T2=2018-03-16T00:03:15.0&T_format=isot&catalog_selected_objects=1,2,3,4&detection_threshold=7.5&instrument=isgri&osa_version=OSA10.2&product_type=isgri_lc&time_bin=10000&time_bin_format=sec&query_status=ready&query_type=Real&radius=15&use_scws=no&selected_catalog={%22cat_column_descr%22:[[%22meta_ID%22,%22%3Ci8%22],[%22src_names%22,%22|S18%22],[%22significance%22,%22%3Ef4%22],[%22ra%22,%22%3Ef4%22],[%22dec%22,%22%3Ef4%22],[%22NEW_SOURCE%22,%22%3Ei2%22],[%22ISGRI_FLAG%22,%22%3Ci8%22],[%22FLAG%22,%22%3Ci8%22],[%22ERR_RAD%22,%22%3Cf8%22]],%22cat_column_list%22:[[1,2,3,4],[%221A+0535%2B262%22,%224U+0517%2B17%22,%22Crab%22,%22H+0614%2B091%22],[116.77162170410156,7.909553527832031,1232.6466064453125,8.148767471313477],[84.72620391845703,77.66708374023438,83.63129425048828,94.25425720214844],[26.314136505126953,16.48775863647461,22.01542854309082,9.165886878967285],[-32768,-32768,-32768,-32768],[2,2,2,2],[0,0,0,0],[0.0002800000074785203,0.0002800000074785203,0.0002800000074785203,0.0002800000074785203]],%22cat_column_names%22:[%22meta_ID%22,%22src_names%22,%22significance%22,%22ra%22,%22dec%22,%22NEW_SOURCE%22,%22ISGRI_FLAG%22,%22FLAG%22,%22ERR_RAD%22],%22cat_coord_units%22:%22deg%22,%22cat_frame%22:%22fk5%22,%22cat_lat_name%22:%22dec%22,%22cat_lon_name%22:%22ra%22}</a></p>
Systematic profiling of full-length immunoglobulin and T-cell receptor repertoire diversity in rhesus macaque through long read transcriptome sequencing
<p>Using long read sequencing, we sequenced four Indian-origin rhesus macaque tissues. From raw full-length, non-chimeric circular consensus sequencing (CCS) reads, we obtained high quality, full-length sequences for over 6,000 unique immunoglobulin and T-cell receptor transcripts, without the need for sequence assembly.</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.