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9,204 results for “tree”
Similarity data set used to test Synchronous Growth Changes (SGC) on dendrochronological data using tree-ring series from the ITRDB
<p>Dataset used to test the SGC, SSGC and AGC in:</p> <div> <div>Visser, RM. 2021 On the similarity of tree-ring patterns: Assessing the influence of semi-synchronous growth changes on the Gleichläufigkeitskoeffizient for big tree-ring data sets. <em>Archaeometry</em> 63(1): 204–215. DOI: <a href="https://doi.org/10.1111/arcm.12600">https://doi.org/10.1111/arcm.12600</a>.</div> </div> <p>The dataset contains the database used in this study</p> <ul> <li><em>itrdb_structure.sql</em> described the structure of the database (PostgreSQL/PostGIS)</li> <li>Tables <ul> <li><em>GC_??_tbl</em> are tables with ?? denoting the continent (see below) containg the comparisons between tree-ring series and the growth changes <ul> <li>The following columns are present: <ul> <li>ID1 and ID2: These are the ID's of the series compared.</li> <li>SGC: Synchronous Growth Changes</li> <li>SSGC: Semi Synchronous Growth Changes</li> <li>Overlap: the number of tree-rings compared</li> </ul> </li> <li>Data files with values in each table. The continents are as defined in the ITRDB (https://www.ncei.noaa.gov/access/paleo-search/?dataTypeId=18) <ul> <li>GC_af_tbl_202005 (Africa)</li> <li>GC_as_tbl_202005 (Asia)</li> <li>GC_au_tbl_202005 (Australia)</li> <li>GC_ca_tbl_202005 (Canada)</li> <li>GC_eu_tbl_202005 (Europe)</li> <li>GC_mx_tbl_202005 (Mexico)</li> <li>GC_sa_tbl_202005 (South America)</li> <li>GC_us_tbl_202005 (North America)</li> </ul> </li> </ul> </li> <li><em>headers</em>: <ul> <li>The following columns are present: <ul> <li>continent: two letter code of the continent (ITRDB)</li> <li>filename: orginal filename as deposited in the ITRDB</li> <li>line_nr: line number of the header</li> <li>header_text: text of the header related to the line number</li> </ul> </li> <li>Datafile: headers_201905222007.csv</li> </ul> </li> <li><em>names</em>: <ul> <li>The following columns are present: <ul> <li>filename: orginal filename as deposited in the ITRDB</li> <li>name_orig: orginal name of the tree-ring series as deposited in the ITRDB</li> <li>name_new: the IDs of the tree-ring series were replaced with a two‐letter code for the continent (AF, AS, AU, CA, EU, SA, US) and a sequence code to prevent duplicate IDs. These are used as ID1 and ID2 in the tables <em>GC_??_tbl</em></li> </ul> </li> <li>Datafile: names_201905240643.csv</li> </ul> </li> </ul> </li> <li>file: <em>geo_location_201906250635.csv</em> <ul> <li>Contains the locations related to each site in the database</li> <li>The following columns: <ul> <li>filename: orginal filename as deposited in the ITRDB</li> <li>continent: two letter code of the continent (ITRDB)</li> <li>lat: latitude</li> <li>long: longitude</li> <li>geom_point: WGS84 coordinates expressed as well-known text (WKT)</li> </ul> </li> </ul> </li> </ul> <p>For the related code, see also: </p> <p>Ronald Visser. (2022). Code and data related to semi-synchronous growth changes and the similarity of tree-ring patterns (v1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7157738</p> <p>Or: https://github.com/RonaldVisser/SGC</p>
The Adult Adansonia digitata L. (baobab tree) distribution map derived from very high resolution satelite imagery for 2010s across the Sahel at 1km resolution
<p>The baobab tree (<em>Adansonia digitata</em> <em>L.</em>) is an integral part of rural livelihoods throughout the African continent. However, the combined effects of climate change and increasing global demand for baobab products are currently exerting pressure on the sustainable utilization of these resources. Here we employ sub-meter resolution satellite imagery to identify nearly 3 million baobab trees in the Sahel, a dryland region of 1.5 million km<sup>2</sup>. This achievement is considered an essential step towards improving valuable woody species' management and monitoring system. The map's overall underestimate bias is 0.27. To prevent mismanagement of this specific tree species, we aggregated every single adult baobab tree map to 1 × 1 km grids. We also classified the baobab trees using the tree crown diameters( small: 3-9m; medium 9m-13m; large: >13m). The baobab tree count map is also available for these three different size classes. </p>
Figure 2 in Epiphytic Bryophyte And Lichen Communities In Relation To Tree And Forest Stand Variables In Populus Tremula Forests Of South-East Latvia
Figure 2. Epiphytic bryophyte and lichen species in the studied territories. Tade Micr – Microreserve in Tadenava, Augs land – Augšzeme Protected Landscape Area, Star Rese – Starinas mežs Nature Reserve. Signal species include all WKH indicator species and red-listed species.
Figure 1. Studied territories. 1 in Epiphytic Bryophyte And Lichen Communities In Relation To Tree And Forest Stand Variables In Populus Tremula Forests Of South-East Latvia
Figure 1. Studied territories. 1 – Microreserve in Tadenava, 2– Augšzeme Protected Landscape Area, 3 – Starinas mežs Nature Reserve.
Fig. 1 in Birch Tree Response To Different Environmental And Meteorological Conditions In Lithuania
Fig. 1. Defoliation (%) of silver and downy birches growing in the sites of different humidity. Values are given as the mean±SE.
Data for "Seed production in a dioecious subcanopy conifer tree Taxus baccata: the positive effect of neighboring males and female heterozygosity"
<p>A spreadsheet contains data for individual trees of Taxus baccata collected within the "Wadernik" reserve, Poland. Data include spatial coordinates (in meters), altitude (in meters), trunk perimeter (in centimeters), canopy closure assessment (0-fully open, 10-complete closure), the observed seed number, sex expression (female/male/undetermined), and genotypes at 20 microsatellite markers.</p>
Quercus falcata (Fagaceae) - whole tree (or vine) - winter
Image of Quercus falcata (Fagaceae) - whole tree (or vine) - winter
Quercus lyrata (Fagaceae) - whole tree (or vine) - general
Image of Quercus lyrata (Fagaceae) - whole tree (or vine) - general
Quercus lyrata (Fagaceae) - whole tree (or vine) - general
Image of Quercus lyrata (Fagaceae) - whole tree (or vine) - general
Cornus florida (Cornaceae) - bark - of a large tree
Image of Cornus florida (Cornaceae) - bark - of a large tree
Quercus macrocarpa (Fagaceae) - bark - of a large tree
Image of Quercus macrocarpa (Fagaceae) - bark - of a large tree
Quercus falcata (Fagaceae) - whole tree (or vine) - general
Image of Quercus falcata (Fagaceae) - whole tree (or vine) - general
Quercus macrocarpa (Fagaceae) - whole tree (or vine) - general
Image of Quercus macrocarpa (Fagaceae) - whole tree (or vine) - general
Sequoiadendron giganteum (Cupressaceae) - whole tree - view up trunk
Image of Sequoiadendron giganteum (Cupressaceae) - whole tree - view up trunk
Sequoiadendron giganteum (Cupressaceae) - bark - of a large tree
Image of Sequoiadendron giganteum (Cupressaceae) - bark - of a large tree
Sequoiadendron giganteum (Cupressaceae) - whole tree - view up trunk
Image of Sequoiadendron giganteum (Cupressaceae) - whole tree - view up trunk
Quercus alba (Fagaceae) - whole tree (or vine) - general
Image of Quercus alba (Fagaceae) - whole tree (or vine) - general
Quercus phellos (Fagaceae) - bark - of a large tree
Image of Quercus phellos (Fagaceae) - bark - of a large tree
Quercus phellos (Fagaceae) - bark - of a large tree
Image of Quercus phellos (Fagaceae) - bark - of a large tree
Quercus phellos (Fagaceae) - whole tree (or vine) - general
Image of Quercus phellos (Fagaceae) - whole tree (or vine) - general
ScienceDex guides
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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.