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99 results for “digging”
Patterns in soil and physical properties of the Bisley Watersheds 1 and 2 (Big Dig 1988, Big Dig 1990)
(1) Exchangeable cation concentrations were measured using different soil extracting procedures (fresh soil and air-dried and ground soil) to establish a range of nutrient availability in the soil, and to determine the relationship between different, but commonly used laboratory protocols.(2) Soils extracted using fresh soils generally yielded significantly lower exchangeable Ca , Mg, and K concentrations than soils which were dried and ground prior to extraction. Soil nutrients generally decreased with depth in the soil.(3) Several soil properties varied predictably across the landscape and could be viewed in the context of a simple catena model. In the surface soils, exchangeable base cation concentrations and pH decreased along a gradient from ridge tops to riparian valleys, while soil organic matter, exchangeable Fe and acidity increased along this gradient. On the ridges, N,P, and K were positively correlated with soil organic matter; on slopes, N and P were positively correlated with organic matter, and Ca, Kg, and pH were negatively correlated with exchangeable Fe. (4) Soil nutrient availability in the upper catena appears to be primarily controlled by biotic processes, particularly the accumulation of organic matter. Periodic flooding and impeded drainage in the lower catena resulted in a more heterogeneous environment. Drying and grinding the soil prior to extraction had a greater impact on exchangeable cations from the upper catena than in the valley positions, probably due to greater soil organic matter content. See Silver, W.L., F.N. Scatena, A.H. Johnson, T.G. Siccama, and M.J. Sanchez. 1994. Nutrient availability in a montane wet tropical forest in Puerto Rico: spatial patterns and methodological considerations. Plant and Soil 164:129-145. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the Univ
Data from: Digging deeper: habitat selection within the home ranges of a threatened marsupial
<p>While resource selection varies according to the scale and context of study, gathering data representative of multiple scales and contexts can be challenging especially when a species is small, elusive, and threatened. We explore resource selection in a small, nocturnal, threatened species—the greater bilby (<em>Macrotis lagotis</em>)—to test <strong>(a)</strong> which resources best predict bilby occupancy, and <strong>(b) </strong>whether responses are sex-specific and/or vary over time. We tracked a total of 20 bilbies and examined within home range resource selection over multiple seasons in a large (110ha) fenced sanctuary in temperate Australia. We tested a set of plausible models for bilby resource selection, showing that food biomass (terrestrial and subterranean invertebrates, and subterranean plants) and soil textures (% sand, clay and silt) best predicted bilby resource selection for all sampling periods. Selection was also sex-specific; female resource use, relative to males, was more closely linked to the location of high-quality resources (sandier soils, and terrestrial invertebrate biomass). Bilby selection for roads was independent of season but varied over time with females selecting for areas closer to roads when plants increased in density off roads. Our findings demonstrate the importance of considering resource selection over multiple contexts and highlight a method to collect such data on a difficult to study, threatened species. Collecting such data is critical to understanding the habitat required by species.</p>
Digging deeper into colonial palaeontological practices in modern day Mexico and Brazil
<p>Scientific practices stemming from colonialism, whereby middle- and low-income countries supply data for high-income countries and the contributions of local expertise are devalued, are still prevalent today in the field of palaeontology. In response to these unjust practices, countries such as Mexico and Brazil adopted protective laws and regulations during the twentieth century to preserve their palaeontological heritage. However, scientific colonialism is still reflected in many publications describing fossil specimens recovered from these countries. Here, we present examples of ‘palaeontological colonialism’ from publications on Jurassic–Cretaceous fossils from NE Mexico and NE Brazil spanning the last three decades. Common issues that we identified in these publications are the absence of both fieldwork and export permit declarations and the lack of local experts among authorships. In Mexico, access to many fossil specimens is restricted on account of these specimens being housed in private collections, whereas a high number of studies on Brazilian fossils are based on specimens illegally reposited in foreign collections, particularly in Germany and Japan. Finally, we outline and discuss the wider academic and social impacts of these research practices, and propose exhaustive recommendations to scientists, journals, museums, research institutions and government and funding agencies in order to overcome these practices.</p> <p> </p> <p><strong>Files included:</strong></p> <p><strong>Table S1.</strong> Sabinas, La Popa and Parras basins fossil publications by foreign authors</p> <p><strong>Table S2.</strong> Araripe fossil publications by foreign authors (vertebrates and plants)</p> <p><strong>Table S3.</strong> Preliminary list of Araripe fossil arthropod publications</p> <p><strong>Table S4.</strong> List of palaeontology museums and postgraduate courses in Brazil with palaeontology advisors</p> <p><strong>Table S5.</strong> List of palaeontology museums and postgraduate courses in Mexico with palaeontology advisors</p> <p><strong>Translation S1.</strong> Complete article in Portuguese</p> <p><strong>Translation S2.</strong> Complete article in Spanish</p> <p><strong>Appendix A.</strong> Laws in Brazil (includes English translations)</p> <p><strong>Appendix B.</strong> Laws in Mexico (includes English translations)</p>
Fig. 1 in Effect of the presence of brood and fungus on the nest architecture and digging activity of Acromyrmex subterraneus Forel (Hymenoptera, Formicidae)
Fig. 1. Plaster mold of a nest excavated by Acromyrmexsubterraneus workers. (A) Plaster mold of tunnels; (B) a molded and dried nest ready to be removed; (C) labeled and measured structure.
Fig. 3 in Effect of the presence of brood and fungus on the nest architecture and digging activity of Acromyrmex subterraneus Forel (Hymenoptera, Formicidae)
Fig. 3. Boxplot showing the variation in digging activity according to treatment (indicated above each graph) and time.
Fig. 1 in A non-digging zoobenthivorous fish attracts two opportunistic predatory fish associates
Fig. 1. The flying gurnard (Dactylopterus volitans; 20 cm TL) wandering close to the gravel substrate with its characteristic dotted coloration, escorted by a yellow jack (Caranx bartholomaei; 25 cm TL).
Data and code supporting acoustic and environmental factors driving digging behavior in the early life of a freshwater turtle
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Data from: Digging deeper: habitat selection within the home ranges of a threatened marsupial
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Training dataset and final models used in "Digging roots is easier with AI"
<p>See the paper ''Digging roots is easier with AI' for an explanation of how the models and datasets were created.</p> <p>The images are extracted from the larger datasets available from 10.5281/zenodo.4300067 using the RootPainter software.</p>
Dataset and manual counts used in "Digging roots is easier with AI"
<p>Please see the paper "Digging roots is easier with AI" how the images were captured and the manual counting was performed for the three destructive sampling procedures. </p>
Plastic Skeleton Practice Dig
Captured on the 11th of May at UWA as part of a student training exercise. 194 photos from an iPhone SE. Reconstructed in Agisoft photoscan standard edition on Low settings alignment, low for meshing and 4096x pixel mosaic for texturing. These are not actual human remains. Source: Objaverse 1.0 / Sketchfab
Gueswick Hills Dig: GH19 Trench A1
Oct/Nov 2019 - Trench A1 is part of a new exploritory archaeological excavation at Gueswick Hills in Teesdale County Durham. More information is available in the Project Design pdf available on this link: https://altogetherarchaeology.org/reports.php Note the 3D software doesn't like reflective surfaces hence the appearance of the red and white 1 m ranging poles. Source: Objaverse 1.0 / Sketchfab
Greyside Dig 2020
3D model of 1st season excavation trench on north-west area of central cell of probable post-medieval farmstead at Greyside, Warden, Northumberland. See report here: https://tynedalearchaeology.org.uk/downloadfiles/greysidex2020.pdf Source: Objaverse 1.0 / Sketchfab
Greyside 2022 dig high resolution
3D model made from 40 photos to record final state of main excavation trench in 2nd season archaeology dig in March 2022 at Greyside near Warden, Northumberland. In 2022 a 2m (N-S) x 10m (E-W) trench was excavated along the axis of the farmstead eastwards (with a small overlap) from the 2020 trench which focussed on the western part of the central compartment shown to be a byre. It crossed the wall between the central compartment, entering the eastern compartment. Later it was extended southwards each side of this wall, reaching the south wall of the farmstead. A second small trench 0.8m (N-S) x 3.5m (E-W) was dug across the east wall of the farmstead, to examine the floor in the east end of the eastern compartment. Source: Objaverse 1.0 / Sketchfab
Yatesfield dig 2022 - cup-marked stone
Cup-marked stone found in paved floor of supposed Iron Age/Romano-British round-house during dig at Yatesfield, Northumberland in 2022. Source: Objaverse 1.0 / Sketchfab
Can You Dig It? - Virtual Drop-In
Galloway Glens Landscape Partnership, Can You Dig It? drop-in day at Castle Douglas, Dumfries & Galloway. Event showcased all the community archaeology activites carried out during 2019. This model was created with Blender and GIMP from photo's taken during the event and will hopefully give those who couldn't get to the event a chance to look at the display boards, created by Claire Williamson, and see all the cool archaeology which got uncovered last year. The background is the interior of the Gordon Memorial Hall at St Ninian's in Castle Douglas, where the event was held https://dcdchurches.org.uk/gordon-memorial-hall/. Source: Objaverse 1.0 / Sketchfab
Weighted stick – tool for digging up tubers
Weighted stick – tool for digging up tubers and roots ID no.: 18765/MEK Museum: The Seweryn Udziela Ethnographic Museum in Kraków https://muzea.malopolska.pl/en/objects-list/1501 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
Digging for Decision Trees: A Case Study in Strategy Sampling and Learning (experimental reproduction package)
<p>This artifact permits to reproduce the experimental results obtained with the techniques and algorithms presented in the article "Digging for Decision Trees: A Case Study in Strategy Sampling and Learning" by Carlos E. Budde, Pedro R. D'Argenio, and Arnd Hartmanns (2024).</p> <p>The contents include all data and software (formal models, software tools, Python & bash scripts) used in the experimental evaluation presented in §7 of the article. Detailed instructions on how to reproduce the results are bundled in the artifact. Execution has been tested in the Virtual Machine available at https://zenodo.org/records/7113223.</p> <p> </p>
Yatesfield dig 2022 - chamber in wall
Part of excavation trench showing possible chamber in wall of round-house. Yatesfield, Northumberland. Source: Objaverse 1.0 / Sketchfab
Can You Dig It? - Display Board 2
Galloway Glens Landscape Partnership, Can You Dig It? drop in day at Castle Douglas, Dumfries & Galloway. Event showcased all the community archaeology activites carried out during 2018-2019. There were four Display Boards in total (running from left to right are boards 1-4).  Source: Objaverse 1.0 / Sketchfab
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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.