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Soil Moisture (TDR) Measurements at LTER Moisture Exclusion Treatment Plots: 1994-Present (weekly)
Soil volumetric water content measurments made with Campbell datalogger and Tektronix1502B cable Tester in control and summer rain exclusion treatment plots.
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.
Soil Moisture (TDR), Temperature, and Precipitation Measurements at FP3A Moisture Exclusion Treatment Plots: 2002-Present
Soil moisture and temperature readings taken with Campbell datalogger and Tektronix1502B Cable tester within control plot and summer rain exclusion plot.
APEX fen control plot soil temperatures, 2005-Present
Soil temperature measurements were recorded hourly at an array of depth at APEX alpha Fen from June 2005-Dec 2006. APEX Fen is located in the Bonanza Creek LTER outside of Fairbanks, AK. APEX Fen uses a full-factorial water table (flooded or raised, lowered or drained, and control treatments, as well as a moisture gradient) by warming manipulation (warmed, unwarmed treatment).
Core Meteorological Measurements for the APEX Alpha Fen Bonanza Creek Experimental Forest: 2007-Present
Air temperature, relitive humidity, barometric pressure, net radiation, and precipitation were recorded every half hour at the APEX alpha Fen. APEX Fen is located in the Bonanza Creek LTER outside of Fairbanks, AK. APEX Fen uses a full-factorial water table (flooded or raised, lowered or drained, and control treatments, as well as a moisture gradient) by warming manipulation (warmed, unwarmed treatment).
Litterfall collected from LTTG Sites (1 meter litter trays): 1967 - Present
Litter is measured within 20 x 20 m plots at LTTG research sites representing aspen, birch, black spruce, and white spruce forest types. There are 15 LTTG research sites currently monitored for litterfall and 8 additional sites where litterfall data was collected but the are no longer active. Three litter trays are placed randomly within each of the plots . Litter trays are 1 m x 1 m wooden frames constructed of 1" x 4" boards with fine screen stapled to the bottom side. Litter is collected in the spring as soon after snowmelt as possible (usually in May). Secondary growth (wood) material is separated from all other plant litter (leaf, flowers, bracts, etc.) and placed in labeled paper bags separately by tray. Litter collections are removed to the lab and dried in ovens at 65 deg C for at least 48 hours. Each sample is then weighed to the nearest 0.1 grams.
LTER treatment plot circumference growth: 1989 - Present
The objective of this project is to evaluate the influence of differential forest floor substrate quality on the growth rate of forest trees and large shrubs (Alder and willow). Four 10 m x 15 m or 15 m x 15 m plots were treated with sucrose, sawdust, fertilizer or were controls at 21 successional sites (3 reps of 4 floodplain and 3 upland stages) in both upland and floodplain locations. A complete census of all trees and shrubs (alder and willow) over 2.54 cm at breast height was carried out prior to treatment in 1989. Approximately 550 trees were fitted with diameter bands to estimate the tree growth response over the next 20 years. These bands will be read on an annual basis. The entire plot will be inventoried on a five-year cycle. In 2009 treatments A and C were dropped after finishing the 20 year study period.
Estimates of White Spruce density at two elevations from 1600-present
Paleoecological investigations of ecosystem responses to past climate change can provide insight into plausible scenarios of response to future change and can elucidate factors that may influence the overall predictability of such responses. There is particular interest in the rate at which subarctic Picea populations respond to climate change, as the rate of conversion from tundra to forest may affect the rate of future climate warming. We investigated recent changes in the structure and distribution of treeline white spruce forests in the White Mountains and the Alaska Range. Treeline advance was ubiquitous, but asynchronous in time, occurring significantly earlier in the White Mountains in interior Alaska than in the Alaska Range. The mean lag between initiation of recruitment and forest development was estimated at approximately 200 years, similar to what modeling studies have found. Although continued advance of Picea is the most likely scenario of future change, the recent history of treeline advance suggests that nonlinear responses to warming may be likely due to nonlinear growth responses of individual trees to temperature, limitation of Picea establishment in highly permafrost-affected sites, and decreasing seed availability as the advancing front moves farther from dense seed sources. All of these factors may cause Picea populations to respond nonlinearly to future warming, and these potential nonlinearities caution against uncritical extrapolation from recent trends.
Ice Storm Experiment (ISE) Canopy Structure Data, 2015-present
To evaluate the effects of ice storm disturbance on forest canopy structure and complexity terrestrial lidar data were collected within the Hubbard Brook Ice Storm Experiment plots starting in 2015 (prior to ice treatment) and annually thereafter. Data were collected using a ground-based portable canopy lidar (PCL) system during the growing season in August of each year along 5 permanently marked 30 m transects in each 20 x 30 m ISE plot. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
Year 2000, Plant species present along vegetation transects off the marsh on Middle Rd, Newbury, MA. Near Thurlow's Bridge and Governor's Academy.
This study was conducted in the Fall of 2000, by Governor's Academy high school science class students with their teacher Susan Olezsko-Zsuts to look at the annual presence and absence of marsh plants in the tidal marsh near the Governor's Academy school campus. The marsh is brackish and is located off Middle Road in Newbury , MA , near Thurlow's Bridge.
Year 2002, Plant species present along vegetation transects off the marsh on Middle Rd, Newbury, MA. Near Thurlow's Bridge and Governor's Academy.
This study was conducted in the Fall of 2002, by Governor's Academy high school science class students with their teacher Susan Olezsko-Zsuts to look at the annual presence and absence of marsh plants in the tidal marsh near the Governor's Academy school campus. The marsh is brackish and is located off Middle Road in Newbury , MA , near Thurlow's Bridge.
Year 2006, Plant species present along vegetation transects off the marsh on Middle Rd, Newbury, MA. Near Thurlow's Bridge and Governor's Academy.
This study was conducted in the Fall of 2006, by Governor's Academy high school science class students with their teacher Susan Olezsko-Zsuts to look at the annual presence and absence of marsh plants in the tidal marsh near the Governor's Academy school campus. The marsh is brackish and is located off Middle Road in Newbury , MA , near Thurlow's Bridge.
Year 2007, Plant species present along vegetation transects off the marsh on Middle Rd, Newbury, MA. Near Thurlow's Bridge and Governor's Academy.
This study was conducted in the Fall of 2007, by Governor's Academy high school science class students with their teacher Susan Olezsko-Zsuts to look at the annual presence and absence of marsh plants in the tidal marsh near the Governor's Academy school campus. The marsh is brackish and is located off Middle Road in Newbury , MA , near Thurlow's Bridge.
Year 2009, Plant species present along vegetation transects off the marsh on Middle Rd, Newbury, MA. Near Thurlow's Bridge and Governor's Academy.
This study was conducted in the Fall of 2009, by Governor's Academy high school science class students with their teacher Susan Olezsko-Zsuts to look at the annual presence and absence of marsh plants in the tidal marsh near the Governor's Academy school campus. The marsh is brackish and is located off Middle Road in Newbury , MA , near Thurlow's Bridge.
Summary of the commercial and recreational striped bass fisheries conducted in Massachusetts from 1986 to present.
This dataset summarizes the commercial and recreational striped bass fisheries conducted in Massachusetts. Data sources used to characterize the state fisheries come from monitoring programs of the Massachusetts Division of Marine Fisheries (Marine Fisheries, the Division) and National Marine Fisheries Service (NOAA Fisheries), which are considered to be essential elements of the long-term management approach described in Section 3 of the Atlantic States Marine Fisheries Commission’s (ASMFC) Fisheries Management Report No. 41 (Amendment #6 to the Interstate Fishery management Plan for Atlantic Striped Bass (IFMP)). Fisheries data are compiled from four Massachusetts regions (Cape Cod Canal, Southern Massachusetts, Cape Cod Bay, Northern Massachusetts). Data begins with year 1986 and is updated to present years as data is made available.
River herring abundance in the Ipswich and Parker Rivers, Massachusetts, 1972 to present
This dataset summarizes abundance to assess the current status of alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) in Massachusetts rivers.Data from 2011 and earlier is from Massachusetts Division of Marine Fisheries Technical Report TR-46. Catch data from 2012-2015 was provided by Ben Gahagan and John Sheppard from DMF. Visual counts are a mix of both fish species as they pass through a restriction in the river. Count data for three (Parker, Monument and Mattapoisett Rivers) of the five rivers used to estimate Massachusetts trends in passage and total run size indicated a precipitous decline in alewife abundance after 2000. Data for The Parker and Ipswich rivers are relavant to the Plum Island Ecosystems project.
Precipitation Chemistry Data For the Sevilleta National Wildlife Refuge, New Mexico (1989-present)
This data set includes precipitation chemisty from 20 funnel collectors on the Sevilleta National Wildlife Refuge (NWR). Variables measured include volume, NO3-N, NH4-N, SO4, Cl, Na, K, Ca, Mg, and PO4. The sample interval depends on the frequency of significant precipitations events. Field collection of precipitation chemistry samples occurred as soon after a significant precipitation event as possible (usually within a week after the event). In some cases collection of precipitation chemistry samples occurred more often than meteorlogical station samples (summer, fall), and sometimes less often (winter, spring). Precipitation chemistry samples were collected only when there was enough sample to allow for complete chemical analysis, (usually greater than 100mls). After 1995 all samples continued to be collected for volume but only an a partial set of the samples continued to be analyzed for inorganic nutrients.
Point-Quarter Harvested Plant Weight Measurements to Estimate Shrub ANPP in a Chihuahuan Desert Creosote Shrubland at the Sevilleta National Wildlife Refuge, New Mexico (2007- present)
In an effort to better quantify NPP of Creosotebush in the Five-Points region, it was decided to test the Point-Quarter method against the standard 1-m2 quadrat method that has been in use since 1998. Transects were laid out across the 5 mammal trapping webs as well as across burned and unburned plots of the Mixed Shrub site (MS). Repeat measures of the same bushes are performed seasonally. Whole shrubs of various size classes are collected and sorted and weighed to develop regressions for biomass.
Rabbit Population Dynamics in Chihuahuan Desert Grasslands and Shrublands at the Sevilleta National Wildlife Refuge, New Mexico (1992-present)
This study explores the population dynamics of black-tail jackrabbits (Lepus californicus) and desert cottontail rabbits (Sylvilagus auduboni) in the grasslands and creosote shrublands of McKenzie Flats, Sevilleta National Wildlife Refuge. The study was initiated in January 1992, and continues quarterly each year. Rabbits are sampled via night-time spotlight transect sampling along the roads of McKenzie Flats once during winter, spring, summer, and fall. The route is 21.5 miles long. Measurements of perpendicular distance of each rabbit from the center of the road are used to estimate densities (number of rabbits per square kilometer) via Program DISTANCE. Results from January 1992 to May 2004 indicated that spring was the period of peak density period, with generally steady declines through the rest of the year until the following spring. Evidence of a long-term "cycle" (e.g., the 11-year-cycle reported for rabbits in the Great Basin Desert) does not appear in the Sevilleta rabbit populations.
Hobo Datalogger-Derived Precipitation Data from the Sevilleta National Wildlife Refuge, New Mexico (2008-present)
Precipitation is recognized as the most spatially variable abiotic variable in arid ecosystems such as the Sevilleta National Wildlife Refuge (NWR). Water is also usually the limiting factor in such environments so the accurate measurement of precipitation in both space and time is vital to understanding ecosystem dynamics. In 2008, the acquisition of a number of tipping-bucket rain gauges with Hobo dataloggers permitted the deployment of gauges into an increased number of locations on the Sevilleta NWR. Most dataloggers were installed in the greater Five Points area and primarily placed around the site of the 2003 burn study. A few additional dataloggers were installed throughout the entire Sevilleta NWR to expand overall coverage.
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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.