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13,621 results for “Biologics”
Long Term Mammal Data from Powdermill Biological Station 1979-1999 (Reformatted to a Darwin Core Archive)
This data package is formatted as a Darwin Core Archive (DwC-A, event core). For more information on Darwin Core see https://www.tdwg.org/standards/dwc/. This Level 2 data package was derived from the Level 1 data package found here: https://pasta.lternet.edu/package/metadata/eml/edi/356/2, which was derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-vcr/67/20. The abstract below was extracted from the Level 0 data package and is included for context: This is a 20-year record of small mammal trapping from the Powdermill Biological Station, Rector, PA 15677 collected by Joseph F. Merritt. It is included here as a comparative source of small mammal data.
National Phenology Network tree phenology: Phenology, the timing of biological events such as bud break, plant flowering times and bird migration
Phenology is the study of recurring plant/animal phenophases. Environmental changes will likely impact phenological events at the species level and above. Most of the phenological changes are unknown at the species level and may have large impacts on natural ecosystems in the future. As part of a long term phenological experiment on forest ecosystems, since spring 2009 phenophases were observed on strategically selected forest species. This experiment is part of the National Phenology Network (USA-NPN).
Local plant diversity and soybean biological control 2011 Harvest Measures:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Local plant diversity and soybean biological control 2012 Aphid Surveys:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Biotic and abiotic composition of biological soil crusts in grassland and tarbush ecosystems at the Jornada Basin LTER site, 2017-2018
This data package contains data on biotic and abiotic composition of biological soil crusts at grassland and shrubland sites at the Jornada Basin LTER site. Biological soil crusts (BSCs) of three types, cyanolichen, dark algal, and light algal, were collected during the summer 2017, fall 2017, and spring 2018 seasons to discern differences between two vegetation states (grass and tarbush). A total of 51 biocrusts were collected from 3 tarbush sites and 3 grass sites. Phospholipid fatty acid analysis was used to characterize the microfloral community, while a modified extraction method was employed to observe direct counts of microfauna (multicellular microbes and protists). Soil chemical analysis was also used to obtain nutrient concentrations of each biocrust. Data include microfauna counts, microflora biomass, and soil nutrient composition. This study is complete.
Michigan GLBRC Extensive Sites at the Kellogg Biological Station, Hickory Corners, MI (2008 to 2011)
Dataset Abstract The Great Lakes Bioenergy Research Center’s (GLBRC) Extensive Sites are farm-scale fields located on working farms. Fields of corn, switchgrass, and restored prairie are represented at each of 10 locations in 13 counties in Michigan. original data source http://lter.kbs.msu.edu/datasets/106
Microbial Biomass Dynamics at the Kellogg Biological Station, Hickory Corners, MI (1989 to 1996)
Dataset Abstract The purpose of these studies is to determine patterns of microbial biomass dynamics in crop, successional and forest communities. This project consists of two studies involving microbial biomass determination in soil samples taken from the Main Cropping System Experiment (KBS004): Chloroform Fumigation-Incubation; Soil Microbial Biomass C and N, and Epifluorescence Microscopy and Image Analysis; Soil Microbial Biovolume and C. The data for both studies are generated from subsets of the same soil samples, collected from treatments 1 – 8, CF, DF, and SF. See the descriptor (KBS004) for treatment descriptions. Samples are collected approximately monthly (during ice-free conditions) or annually (varies by year) from 5 sampling stations in each of 6 replicate plots per treatment; exceptions are treatment 8 (four reps), and treatments CF, DF, and SF (three reps each). For experiment descriptions, protocols, and data, see individual datasets. Samples were collected by K. Klingensmith in 1989 and by S. Halstead in other years. D. Harris performed lab analysis, data entry, data analysis, and data submission. Original data files not available; contact the LTER data manager with questions. The data currently available was derived from web-based files which were last reviewed by D. Harris on 10-01-1997 and may be available from archives. original data source http://lter.kbs.msu.edu/datasets/14
Plant biomass collection on the Biodiversity Experiment at the Kellogg Biological Station, Hickory Corners, MI (2001 to 2011)
Dataset Abstract The biodiversity gradient experiment is an additional long-term study located within the LTER Main Site complex, in which a series of 21 different experimental treatments vary in plant species diversity. Treatments range from bare soil to single-crop rotations to multiple-crop rotations to annually fallowed fields with early successional plant communities. Plant species richness thus varies from 0 to >15 in any given 3-year rotation cycle. Treatment plots are 9.1×27.4 meters (30×90 feet) replicated in each of 4 randomized blocks. The study site was established in 2000. original data source http://lter.kbs.msu.edu/datasets/112
Poplar response to Fertilization at the Kellogg Biological Station, Hickory Corners, MI (2011 to 2017)
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Belowground Biomass on the Main Cropping System Experiment at the Kellogg Biological Station, Hickory Corners, MI (2015 to 2015)
Dataset Abstract Belowground Biomass samples on the MSCE are infrequent due to the high labor costs. original data source http://lter.kbs.msu.edu/datasets/138
GLBRC Agronomic Details at the Kellogg Biological Station, Hickory Corners, MI (2008 to 2013)
Dataset Abstract This dataset includes information about the agronomic practices for GLBRC experiments. original data source http://lter.kbs.msu.edu/datasets/139
Snow manipulation experiment, effect on soil trace gas production at the Kellogg Biological Station, Hickory Corners, MI (1950 to 2013)
Dataset Abstract This dataset contains data from Leilei Ruan’s thesis work focused the effect of winter thaws and snow cover on soil N2O fluxes. original data source http://lter.kbs.msu.edu/datasets/162
KBS National Weather Service Station at the Kellogg Biological Station, Hickory Corners, MI (1948 to 2018)
Dataset Abstract This data set contains information collected from the “Gull Lake Biological Station COOP” (#203504) weather observatory located at the W. K. Kellogg Biological Station. Data is also archived at the national weather service. The station is located at 42 degrees 24 minutes north and 85 degrees 23 minutes west at an elevation of 277.4 meters. Observations began on Jan 1 1948 and are recorded daily at 4 pm local time. original data source http://lter.kbs.msu.edu/datasets/20
Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. at the Kellogg Biological Station, Hickory Corners, MI (2013 to 2017)
Dataset Abstract Data for Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. original data source http://lter.kbs.msu.edu/datasets/176
Soil Total Carbon and Total Nitrogen on the Main Cropping System Experiment at the Kellogg Biological Station, Hickory Corners, MI (1989 to 2001)
Dataset Abstract Soil carbon and nitrogen are presented as % elemental carbon and nitrogen (g C or N / 100 g soil) for the sampling depth of the specific sampling date unless indicated otherwise. Samples were taken with either a 2.5 cm diameter soil corer (sampling by soil depth) or a 10 cm diameter Giddings probe (sampling by soil profile). See Baseline Soil Sampling protocol for general sampling information. For specific sampling details for a particular date, see Soil Sampling Field Log. Soil samples are sieved to 4mm and composited by plot. Soil % elemental carbon and nitrogen values are determined by sample combustion and subsequent TCD gas chromatography, using a Carlo Erba automated CHN analyzer as described in the sampling protocol. original data source http://lter.kbs.msu.edu/datasets/27
Soil Bulk Density on the Main Cropping System Experiment. at the Kellogg Biological Station, Hickory Corners, MI (1995 to 1996)
Dataset Abstract Soil bulk density is used to convert water content by weight to water content by volume and for calculating porosity and void ratio. Bulk density has an inverse relationship with soil structure and soil porosity. Bulk density data were collected using an excavation procedure found in the sampling protocols. Bulk density data are available from the forest sites in 1995 and all sites on the LTER Central Experiment in 1996. original data source http://lter.kbs.msu.edu/datasets/29
Soil pH on the Main Cropping System Experiment at the Kellogg Biological Station, Hickory Corners, MI (1989 to 2013)
Dataset Abstract Soil pH was measured on field-moist soils from the LTER Main Site beginning in 1989 and from Successional and Forested sites beginning in 1991. original data source http://lter.kbs.msu.edu/datasets/31
Baseline Spatial Variability Study at the Kellogg Biological Station, Hickory Corners, MI (1988)
Dataset Abstract A spatial variability study conducted across the LTER Main Site area (45 ha) at KBS prior to dividing the site into 1-ha experimental plots. During the 1988 growing season a stratified unaligned sampling scheme was used to collect 400-600 geo-referenced samples across the site (uniformly planted to a single variety of soybeans) for: geomorphological characteristics (microtopography, soil horizon depths, bulk density, texture); soil chemical characteristics (pH, NO3, NH4, total C, total N, moisture, inorganic P, trace metals); soil biological characteristics (N mineralization potentials, microbial biomass C, microbial biomass N, fungal/bacterial ratios, nematodes and other soil invertebrates; seed bank size); plant weed species abundance, weed biomass at peak standing crop); and insect characteristics (major pest and predator species). Most soil samples were taken before crop emergence, plant phenology samples were taken throughout the growing season, biomass samples were taken at physiological maturity, and insect samples were taken continuously. Dried soil and plant samples are archived for potential future analysis. original data source http://lter.kbs.msu.edu/datasets/6
Nitrogen in Soil Water Chemistry on the Main Cropping System Experiment at the Kellogg Biological Station, Hickory Corners, MI (1995 to 2019)
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European Corn Borer Study at the Kellogg Biological Station, Hickory Corners, MI (2001 to 2004)
Dataset Abstract This dataset gives yields from the European Corn Borer Study. The ECB study is a long-term study at the Main Site complex, in which the European Corn Borer is controlled by biological vs. chemical means. Three treatments include insecticide, biological control, and no control. Plots are 5 × 30 m replicated in 4 randomized blocks. original data source http://lter.kbs.msu.edu/datasets/37
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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.