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4,568 results for “planting year”
Figure 2 in Ten years from propagule to mature plant of Butia purpurascens Glassman (Arecaceae): an endemic and endangered palm of the Brazilian Cerrado
Figure 2. Details of fruits, pyrenes and seedling of Butia purpurascens. Mature fruits (A); stem primordium (B); predate pyrenes (C) and seedling showing root primordium (D). Credit to James Dean L. Rocha for Foto C. Other photos are from the authors.
Figure 5 in Hundred years of Botany at the NWU: contributions towards understanding plant and algae function, diversity and restoration in a changing environment
Figure 5: Mr Sello D. Phalatse, first Botanist at Mahikeng Campus (1983–2008), founder and curator of the University of NorthWest Herbarium (Source: NWU Records, Archives and Museum) (Source: NWU Corporate Relations and Marketing).
Figure 4 in Hundred years of Botany at the NWU: contributions towards understanding plant and algae function, diversity and restoration in a changing environment
Figure 4. Botanical Garden – Waterfall on Prof. Daan Botha's koppie. (Photo: Chris van Niekerk from NWU Botanical Garden collection).
Figure 3. Prof. A.P in Hundred years of Botany at the NWU: contributions towards understanding plant and algae function, diversity and restoration in a changing environment
Figure 3. Prof. A.P Goossens, first Professor and Head of Department of Botany (Source: NWU Records, Archives and Museum).
Figures 1–6 in Rediscovery of Livilla radiata (Foerster, 1848) after 130 years in Hungary, with notes to the Fabaceae-associated jumping plant lice in Hungary (Insecta: Psylloidea)
Figures 1–6. Photos about Livilla radiata (Foerster, 1848). 1: Body in dorsal view. 2: Head and pronotum in dorsal view. 3: Body in lateral view. 4: Wing colorization. 5: Female terminalia. 6: Male proctiger and paramere.
Global oil palm extent and planting year from 1990 to 2021
<p>This repository contains a 10-m global oil palm extent layer for 2021 and a 30-m oil palm planting year layer from 1990 to 2021. The oil palm extent layer was produced using a convolutional neural network that identified industrial and smallholder plantations in Sentinel-1 data. The oil palm planting year was developed using a methodology specifically designed to detect the early stages of oil palm development in the Landsat time series. </p> <p>The repository contains the following data:</p> <p>- Grid_OilPalm2016-2021.shp: shapefile that delineates the 609 grid cells of 100 x 100 km where oil palm was found.</p> <p>- GlobalOilPalm_OP-extent.zip: 609 raster tiles of 100x100 km in geotiff format. The raster files show the results of the deep learning classification at a spatial resolution of 10 meters. The classes are the following:</p> <p>[0] Other land covers that are not oil palm.</p> <p>[1] Industrial oil palm plantations</p> <p>[2] Smallholder oil palm plantations.</p> <p>- GlobalOilPalm_YoP.zip: 609 raster tiles of 100x100 km in geotiff format. The raster files depict the year of oil palm plantation. The raster files have a spatial resolution of 30 meters.</p> <p>- Validation_points_GlobalOP2016-2021.shp: shapefile that contains the 18,812 points used to validate the global oil palm extent 2016–2021 and the oil palm age layer. Each point includes the attribute ‘Class’, which is the class assigned by visual interpretation of sub-meter resolution images, and the attributes ‘OP2016-2021’ and ‘OP2019’, which show the mapped classes in the oil palm extent 2016–2021 (this dataset) and the global oil palm layer 2019 (Descals et al., 2021), respectively. These attributes contain the following class values:</p> <p>[0] Other land covers that are not oil palm.</p> <p>[1] Industrial oil palm plantations.</p> <p>[2] Smallholder oil palm plantations.</p> <p>The oil palm extent and the planting year can be visualized at: https://ee-globaloilpalm.projects.earthengine.app/view/global-oil-palm-planting-year-1990-2021. This web map allows for the inspection of Landsat time series and the visualization of historical satellite images for a given oil palm plantation.</p> <p>If you are interested in obtaining the GeoTIFF file for a specific region, please refer to this Google Earth Engine script, which shows the IDs of each tile:<br>https://code.earthengine.google.com/284cf1dc974295c57fe55bccf5acd83e </p> <p>Changelog v1.2: The validation dataset includes 1,000 additional points generated using stratified random sampling: 300 points for the class ‘smallholder oil palm’ and 700 points for ‘industrial oil palm’. The shapefile contains a new attribute, 'Sampling_type', which specifies whether the points were generated with simple or stratified random sampling. </p>
The diversity and distribution of introduced plant species reflects eight thousand years of settlement history
<p>Human population has affected natural ecosystems since prehistoric times in many ways, causing disturbances in existing ecosystems and creating novel habitats, and altering the colonisation and extinction rates with potentially long-lasting effects on biodiversity. Here, we explored the pervasive effects of past human occupancy on present-day diversity and the distribution of plant species introduced by humans in the distant past – archaeophytes – at the regional spatial scale. We analysed spatial relations between the present-day species richness of archaeophytes and native flora, the environmental setting, archaeological evidence, and the relationship between the residence time of archaeophytes and their regional range size. We used fine-scaled gridded information on plant diversity and archaeological records for the period 6000 BCE to 1000 CE summarised as average occupancy probability (AOP) in Czechia, Central Europe. The proportion of archaeophytes in local flora positively correlated to AOP. Variation partitioning revealed largely overlapping effects of AOP, environmental conditions, and present-day land use on the relative diversity of archaeophytes in local flora. The relationship between the minimum residence time of introduced species and their regional range size was weak and non-significant.</p> <p>Synthesis. Our results suggest that the present-day regional diversity of archaeophytes mirrors the intensity of past human settlement. However, the main underlying mechanism is the dispersal and environmental filtering of non-native species pools, while dispersal limitation plays a minor role in the regional patterns of archaeophyte diversity. </p>
Data from: Limited directional change in mountaintop plant communities over 19 years in western North America
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Data from: A multi-year case study highlighting the influence of hydrological conditions on epidemic dynamics in a natural plant pathosystem
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Data from: Bison grazing in eastern tallgrass prairie does not alter plant diversity after five years
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The diversity and distribution of introduced plant species reflects eight thousand years of settlement history
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Plant community compositional stability over 40 years in a Fraser River Estuary tidal freshwater marsh
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Serpentine plant community surveys (3 years) following a dispersal manipulation at McLaughlin Natural Reserve
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Growth and survival of seedlings of 14 species of lowland rainforest trees planted in the La Guaria Annex (Canada Plot) of La Selva Biological Station, Costa Rica, in 1986 and measured every six months or every year until 1992 (Part 1 of 2)
During the 1960s, 1970s, and 1980s, Costa Rica’s old growth forests were being cut to clear land for cattle pastures and large-scale agriculture. Timber concessions were also growing pine, gmelina, and other non-native trees for harvesting. The Costa Rican government was developing plans for a reforestation program and for a Payment for Environmental Services program to combat forest loss. At this time there were no data available on the growth of native trees species. The TRIALS project (starting with the CANADA Plot) was designed by OTS (Organization for Tropical Studies) and the DGF (Dirección General Forestal) to measure the growth and survival of native tree seedlings planted on abandoned pasture lands at the La Selva Biological Station. Data from these seedlings formed the basis of the reforestation law and the Payments of Ecosystem Services (PES) plan and this model was replicated in many other areas of Costa Rica.
Growth and survival of seedlings of 14 species of lowland rainforest trees planted in the La Guaria Annex (Canada Plot) of La Selva Biological Station, Costa Rica, in 1986 and measured every six months or every year until 1992 (Part 2 of 2)
During the 1960s, 1970s, and 1980s, Costa Rica’s old growth forests were being cut to clear land for cattle pastures and large-scale agriculture. Timber concessions were also growing pine, gmelina, and other non-native trees for harvesting. The Costa Rican government was developing plans for a reforestation program and for a Payment for Environmental Services program to combat forest loss. At this time there were no data available on the growth of native trees species. The TRIALS project (starting with the CANADA Plot) was designed by OTS (Organization for Tropical Studies) and the DGF (Dirección General Forestal) to measure the growth and survival of native tree seedlings planted on abandoned pasture lands at the La Selva Biological Station. Data from these seedlings formed the basis of the reforestation law and the Payments of Ecosystem Services (PES) plan and this model was replicated in many other areas of Costa Rica.
Plant and soil organic matter responses to ten years of nutrient enrichment in the Nutrient Network:Nutrient Network. A cross-site investigation of bottom-up control over herbaceous plant community dynamics and ecosystem function
This experiment is one implementation of a globally distributed experiment, known as the Nutrient Network. At Cedar Creek, as in over 70 other sites in grasslands around the world, the experiment aims to describe impacts of increased nutrients (nitrogen, phosphorus, potassium, sulfur and other metals) and decreased herbivory (removal of mammals by fencing). Two overarching questions are being explored with these manipulations: 1. To what extent are plant production and diversity co-limited by multiple nutrients in herbaceous-dominated communities? 2. Under what conditions do grazers or fertilization control plant biomass, diversity, and composition? By utilizing identical protocols at diverse grassland sites around the world, NutNet aims to uncover both the generalities in ecosystem functioning, and the contingencies or differences which can obscure those common mechanisms. In addition to the standard NutNet protocol, e247 includes an additional low Nitrogen gradient (1 gram Nitrogen per meter squared per year and 5 grams Nitrogen per meter squared per year in addition to the standard 10 grams Nitrogen per meter squared per year).
Plant above and belowground biomass across an N fertilization gradient after 13 years of fertilization:Nutrient Network. A cross-site investigation of bottom-up control over herbaceous plant community dynamics and ecosystem function
This experiment is one implementation of a globally distributed experiment, known as the Nutrient Network. At Cedar Creek, as in over 70 other sites in grasslands around the world, the experiment aims to describe impacts of increased nutrients (nitrogen, phosphorus, potassium, sulfur and other metals) and decreased herbivory (removal of mammals by fencing). Two overarching questions are being explored with these manipulations: 1. To what extent are plant production and diversity co-limited by multiple nutrients in herbaceous-dominated communities? 2. Under what conditions do grazers or fertilization control plant biomass, diversity, and composition? By utilizing identical protocols at diverse grassland sites around the world, NutNet aims to uncover both the generalities in ecosystem functioning, and the contingencies or differences which can obscure those common mechanisms. In addition to the standard NutNet protocol, e247 includes an additional low Nitrogen gradient (1 gram Nitrogen per meter squared per year and 5 grams Nitrogen per meter squared per year in addition to the standard 10 grams Nitrogen per meter squared per year).
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.
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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.