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1,552 results for “patch”
Data from: Which plumage patches provide information about condition and success in a female fairy-wren?
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Early spring orchard pollinators spill over from resource-rich adjacent forest patches
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Density-dependent within-patch movement behavior of two competing species
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Data for: Patch fidelity and patch preference of honey bees and bumble bees
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Patch clamp dataset for: A massively parallel assay accurately discriminates between functionally normal and abnormal variants in a hotspot domain of KCNH2
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Bats increased foraging activity at experimental prey patches near hibernacula
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Welker Shrub Microclimate Data from an unmanipulated shrub patch near Toolik Field Station, August 6, 2006 to September 12, 2010
Hourly air temperature, humidity, wind speed, soil temperature and soil water data from an unmanipulated shrub patch measured from August 6, 2006 to September 12, 2010.
Water Use and flooding in central Arizona-Phoenix: comparison of water and carbon dioxide uptake by selected plant species among residential patch transition types, from 1998 to 1999.
Compare the primary productivity (rate of of production of plant material) and uptake of water and carbon dioxide by selected plant species, at sites selected to represent the transition between desert or agriculture and new residential development.
Experimental fluvial-deltaic stratigraphic patches for machine learning applications
<p>Collection of 6,132 images (128 x 128 pixels) cropped from experimental stratigraphy produced in the Tulane Delta Basin, TDB-10-1, under temporally constant boundary conditions. The images are prepared to be used in a machine learning project.</p> <p>Each image is prefixed with a number [0-5] which indicates the strike section the image was selected from. The cropped strike sections are obtained from the archival dataset located on SEN: <a href="http://sedexp.net/catalog/tdb-10-1-tulane-delta-basin">http://sedexp.net/catalog/tdb-10-1-tulane-delta-basin</a>.</p> <p>After cropping from the strike sections, each image was processed with binarization and a sequence of morphological opening and closing operations. The code that did the processing can be obtained at <a href="https://github.com/amoodie/StratGAN/blob/master/process_images/nrand_process.py">https://github.com/amoodie/StratGAN/blob/master/process_images/nrand_process.py</a>.</p> <p>This data was produced as part of a larger project: <a href="https://github.com/amoodie/StratGAN">https://github.com/amoodie/StratGAN</a></p>
FIGURE 3. Dentitheca dendritica A in Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean
FIGURE 3. Dentitheca dendritica A. Basal part of polysiphonic hydrocaulus. Arrow indicates one of the channels. B. Apical part of the hydrocaulus. Oblique node that divides the hydrocaulus in sections. C. Lateral apophyses that support the hydrocladium. D. Hydrothecae in a hydrocladium with mobile lateral nematotheca. E. Mid-lower nematotheca. F. Cone- shaped nematotheca from the apophyses. G. Male gonotheca with gonophore.
Catalogue of lunar irregular mare patches (IMPs)
<p><strong>This page archives data used in the following article:</strong></p> <p><strong>Qiao, L., Head, J. W., Ling, Z., & Wilson, L. (2020). Lunar irregular mare patches: Classification, characteristics, geologic settings, updated catalog, origin, and outstanding questions. <em>Journal of Geophysical Research: Planets</em>, 125, e2019JE006362. <a href="https://doi.org/10.1029/2019JE006362" target="_blank" rel="noopener">https://doi.org/10.1029/2019JE006362</a></strong></p> <p><strong>It contains the catalogue of 91 lunar IMPs and measurements of the slopes of the various surface textures at several representative lunar IMPs.</strong></p>
Code Review for Conformance to Project Coding Style? Revisit using OpenStack Patches
<p>This is a dataset of the paper name "Code Review for Conformance to Project Coding Style? Revisit using OpenStack Patches".</p> <p>It is used for the peer review process in SANER 2021</p>
Multimodal Biomedical Dataset for Evaluating Registration Methods (patches from TMA Cores)
<p>The dataset consists of 206 aligned Bright-Field (BF) and Second-Harmonic Generation (SHG) images. All images are of the same size of 834x834 pixels. The training set contains 40 image pairs. A validation set 1 of 25 image pairs for tuning the hyperparameters for the training. A validation set 2 of 7 image pairs for tuning the registration method. The test set for evaluation: 134 image pairs (times two).</p> <p>For each image pair in the test set, a random rotation up to +/-30 degrees and random translations in x and y for up to 100px were applied. For each image pair that was transformed for the test set, we apply the transformation to both modalities and keep their corresponding reference images as well as transformed images, in order to allow for registration using each modality as a reference and the other as a floating image. The metadata.csv file includes the coordinates of the four corners of the reference image as well as the coordinates of the corners of the transformed image after displacement. The origin of this coordinate system is the upper left corner of the reference image, given by (0,0).</p> <p>Example of naming convention in the test set:</p> <ul> <li>R_1B_F8_BF.tif: reference image in Bright-Field</li> <li>R_1B_F8_SHG.tif: reference image in Second-Harmonic Generation</li> <li>T_1B_F8_BF.tif: transformed image in Bright-Field</li> <li>T_1B_F8_SHG.tif: transformed image in Second-Harmonic Generation.</li> </ul> <p>Where the transformations applied to T_1B_F8_BF.tif and T_1B_F8_SHG.tif are identical and hence the coordinates of the corners in metadata.csv are valid for both image pairs.</p> <p>The metadata.csv file contains the following columns:</p> <ul> <li>Filename: identifier for image pair</li> <li>X1_Ref: x-coordinate of upper left corner of reference image</li> <li>Y1_Ref: y-coordinate of upper left corner of reference image</li> <li>X2_Ref: x-coordinate of lower left corner of reference image</li> <li>Y2_Ref: y-coordinate of lower left corner of reference image</li> <li>X3_Ref: x-coordinate of upper right corner of reference image</li> <li>Y3_Ref: y-coordinate of upper right corner of reference image</li> <li>X4_Ref: x-coordinate of lower right corner of reference image</li> <li>Y4_Ref: y-coordinate of lower right corner of reference image</li> <li>X1_Trans: x-coordinate of upper left corner of transformed image</li> <li>Y1_Trans: y-coordinate of upper left corner of transformed image</li> <li>X2_Trans: x-coordinate of lower left corner of transformed image</li> <li>Y2_Trans: y-coordinate of lower left corner of transformed image</li> <li>X3_Trans: x-coordinate of upper right corner of transformed image</li> <li>Y3_Trans: y-coordinate of upper right corner of transformed image</li> <li>X4_Trans: x-coordinate of lower right corner of transformed image</li> <li>Y4_Trans: y-coordinate of lower right corner of transformed image</li> <li>Displacement: Mean Euclidean distance between reference corner points and transformed corner points</li> </ul> <p>The data set was originally produced by the authors of <em>Aligned Collagen Is a Prognostic Signature for Survival in Human Breast Carcinoma</em> (<a href="https://www.sciencedirect.com/science/article/pii/S0002944010002336">https://www.sciencedirect.com/science/article/pii/S0002944010002336</a>). The registered and non-registered sub-image pairs in this data set were created by Johan Öfverstedt and Elisabeth Wetzer.</p>
Automated total and heterotrophic soil respiration in semi-arid shrubland and annual invasive patches
<p>Soil respiration (Rs) is the largest terrestrial source of carbon (C) flux to the atmosphere but our understanding of Rs controls with shifts in plant-community composition remains limited. We used high frequency soil respiration measurements and root exclusion to evaluate how Rs component fluxes, autotrophic respiration (Ra) and heterotrophic respiration (Rh), vary between a perennial semi-arid shrub community and annual invasive community. </p>
Parallel responses of species diversity and functional diversity to changes in patch size are driven by distinct processes
1. Do species and functional trait diversity respond similarly to deterministic and random processes? Theory predicts that the contributions of random and deterministic processes to species diversity depend on patch size. Smaller patches are more strongly influenced by random sampling effects, by having fewer individuals, as well as ecological drift, which propagates the effects of small samples through stochastic birth and death processes. These random processes decrease species richness and increase compositional differences among small patches. Larger patches are predicted to be more deterministically assembled, with greater species richness and greater predictability of composition for a particular environment. The consequences of patch size for the diversity of functional traits, however, are poorly understood. Species diversity may be a poor proxy for functional diversity due to trait redundancies among species, making it unclear how random and deterministic processes alter functional diversity within patches of differing size, and how these differences scale up to determine among-patch functional diversity. 2. We report a novel experimental study of species and functional diversity across spatial scales. We manipulated patch area in an experimental plant metacommunity and used a nested sampling design to distinguish the effects of deterministic processes, ecological drift, and sampling effects on species and functional trait diversity. 3. Our study revealed a pervasive influence of ecological drift and sampling effects on diversity, with distinct influences on functional traits and species composition within and among patches. Overall, drift and sampling effects caused a 2- to 3-fold decrease in the importance of deterministic processes in small fragments. Species and functional diversity showed similar patterns with patch size: larger patches had greater within-patch (alpha) diversity and lower among-patch (beta) diversity, consistent with theory. However, our nested sampling design revealed that sampling effects (i.e. the size of the sample area) largely determined alpha species diversity and beta functional diversity, while ecological drift had a stronger influence on alpha functional diversity and beta species diversity. 4. Synthesis. The compositions of species and functional diversity in a community are influenced by distinct processes, resulting in divergent spatial scaling of species and their traits within patches and across landscapes.
Data from: Isolated trees support lower bird taxonomic richness than trees within habitat patches but similar functional diversity
<p><span>Large isolated trees are keystone structures that can help maintain biodiversity in fragmented landscapes, with evidence that open areas with isolated trees may support similar levels of taxonomic diversity to nearby patches of habitat. However, it is not clear if isolated trees can support the same diversity of ecological functions as trees in habitat patches. We compared species richness, community composition and functional diversity of birds in trees at forest edges and isolated trees. Twenty isolated trees and ten edge trees of American muskwood (<i>Guarea guidonia</i>) were selected, and sampled on 11 occasions, each of 20 minutes, over four months. All individual birds that landed at trees were recorded using a standardized protocol. Species richness was, on average, almost twice as high at edge trees than at isolated trees. Taxonomic composition differed between edge and isolated trees, with many forest-dependent birds restricted to edge trees, and some open-area birds restricted to isolated trees. Overall functional diversity was similar at edge and isolated trees, but some ecological functions (e.g. frugivory) were less frequent, while others (e.g. granivory) were more frequent at isolated compared to edge trees. Isolated trees are important for supporting many ecological functions in modified areas. However, the maintenance of forest patches is essential to complement the provision of such functions in modified landscapes. </span></p>
The role of boundary length and adjacent patch contrast in guppy mate choice: Dataset, Matlab and R codes
<p>The presence of various combinations of adjacent colours within polymorphic species' colour pattern could have a major impact on mate choice. We studied the role of pattern geometry in predicting mate choice in guppies using boundary strength analysis (BSA). BSA estimates the visual contrast intensity between two adjacent colour patches (<i>ΔS</i>) weighted by the lengths of the boundaries between these adjacent colour patches. We measured both the chromatic (hue and saturation) and achromatic (luminance) <i>ΔS</i> for each pair of adjacent patches. For each male's colour pattern, we measured BSA as both mean (<i>mΔS</i>)<i> </i>and coefficient of variation (<i>cvΔS</i>) of all <i>ΔS</i> weighted by their corresponding boundary lengths. We also determined if specific colour patch boundaries had an impact on female preferences and whether these predicted overall male contrast (<i>mΔS</i>). We found that males with a higher <i>mΔS</i> were more attractive to females and that six boundaries containing either fuzzy black or black as one of the pair colours significantly affected female preferences, indicating that (1) females favoured highly conspicuous males and (2) melanin-based patches could be used as a signal amplifier, not only for orange but for other colours.</p>
Predicting patch occupancy reveals the complexity of host range expansion
<p>Specialized plant-insect interactions are a defining feature of life on earth, yet we are only beginning to understand the factors that set limits on host ranges in herbivorous insects. To better understand the recent adoption of alfalfa as a host plant by the Melissa blue butterfly, we quantified arthropod assemblages and plant metabolites across a wide geographic region, while controlling for climate and dispersal inferred from population genomic variation. The presence of the butterfly is successfully predicted by direct and indirect effects of plant traits and interactions with other species. Results are consistent with the predictions of a theoretical model of parasite host range in which specialization is an epiphenomenon of the many barriers to be overcome rather than a consequence of trade-offs in developmental physiology.</p>
Automated Patch Assessment for Program Repair at Scale
<p>In this package, we share 257 patches from Dcorrect and 381 patches from Doverfitting.</p> <p>We also a script used in our experiment for doing sanity checks and automated patch assessments.</p> <p> </p> <p>If you use this dataset, please cite:</p> <pre><code>@Article{Ye2021EMSE, author = {Ye, He and Martinez, Matias and Monperrus, Martin}, title = "Automated Patch Assessment for Program Repair at Scale", journal="Empirical Software Engineering", volume = "26", issn = "1573-7616", doi = "https://doi.org/10.1007/s10664-020-09920-w", year = "2021" } </code></pre> <p> </p>
Forest patch size predicts seed bank composition in urban areas
<p><b>Questions:</b></p> <p>As urban areas expand around the world, understanding how to restore and maintain forests within the urban environment becomes increasingly important. Given that a comprehensive understanding of regeneration dynamics is critical to designating appropriate management interventions we ask the following: how does regeneration, vis-à-vis the buried seed bank, vary in heterogenous urban forests? And, can forest patch size be used to predict regeneration and consequent management interventions?</p> <p><b>Location:</b></p> <p>Vacant lots and public parks throughout New Haven, CT, USA.</p> <p><b>Methods:</b></p> <p>We sampled buried seed banks in 131 plots distributed across three forest patch sizes ranging from large intact parks (95-126 ha), to small parks (1-19 ha), and vacant lots (.05-.65 ha). We collected soil samples from the surface mineral soil and stratified them over sand in a greenhouse over a period of 5 months to record germination.</p> <p><b>Results:</b></p> <p>By examining seed bank floristics in a range of forest patch sizes we found that species composition and dominance of specific functional groups shifted with patch size representing a spectrum of urbanization within just one city. Seed bank floristics in large parks more closely resembled results from seed bank studies in rural forests with over 85% native germinants on average. In contrast, vacant lots were dominated by non-native germinants and more ruderal species indicative of earlier successional stages. Seed banks in small parks were variable and in some cases were more similar to large parks or vacant lots.</p> <p><b>Conclusions:</b></p> <p>Our findings suggest that large parks in urban areas may be largely self-sustaining whereas smaller parks may require more intensive management for site rehabilitation, especially in early states of succession. Furthermore, our results confirm the highly heterogeneous nature of urban forest patches and call for more systematic sampling of urban areas to capture this variation and improve management prescriptions and outcomes.</p>
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.