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Figure 9 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 9 Distribution of Stygobromus anacostensis sp. nov. and other S. tenuis group species in the Washington D.C. area, USA
Figure 8 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 8 Stygobromus anacostensis sp. nov., Allotype female, 5.3 mm (USNM 1606903): A coxa and basis of pereopod 7 showing placement of bifurcate sternal gill B uropod 1 C uropod 2 D uropod 3 E telson. Scale bars: 0.5 mm (A–C); 0.25 mm (D, E).
Figure 6 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 6 Stygobromus anacostensis sp. nov., Holotype male, 5.9 mm (USNM 1606902): A epimera 1–3 B pleopod 1 (coupling spines and clothes pin seta enlarged) C uropod 1 (posteromedial protuberance enlarged) D uropod 2 E uropod 3 F telson. Scale bars: 0.25 mm.
Figure 4 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 4 Stygobromus anacostensis sp. nov., Holotype male, 5.9 mm (USNM 1606902): A gnathopod 1 (palm and dactyl enlarged) B gnathopod 2 (rastellate seta, palm and dactyl enlarged). Scale bar: 0.5 mm.
Figure 7 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 7 Stygobromus anacostensis sp. nov., Allotype female, 5.3 mm (USNM 1606903): A antenna 2 B gnathopod 1 (palm and dactyl enlarged) C gnathopod 2 (rastellate seta, palm and dactyl enlarged). Scale bars: 0.25 mm (A); 0.5 mm (B, C).
Figure 5 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 5 Stygobromus anacostensis sp. nov., Holotype male, 5.9 mm (USNM 1606902): A pereopod 3 B pereopod 4 C pereopod 5 D pereopod 6 E pereopod 7 F bifurcate sternal gill located on somites 6 and 7. Scale bar: 0.5 mm.
Figure 3 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 3 Stygobromus anacostensis sp. nov., Paratype male, 5.7 mm (USNM 1606904): A upper lip D maxilla 2. Holotype male, 5.9 mm (USNM 1606902): B lower lip C maxilla 1 E maxilliped (distal margin of inner plate enlarged). Scale bars: 0.25 mm.
Figure 2 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 2 Stygobromus anacostensis sp. nov., Holotype male, 5.9 mm (USNM 1606902): A antenna 1 (single aesthetasc enlarged) C left mandible (palp omitted) D right mandible (lacinia mobilis enlarged). Paratype male, 5.7 mm (USNM 1606904): B antenna 2 (single calceolus enlarged). Scale bars: 0.5 mm (A, B); 0.25 mm (C, D).
Figure 11 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 11 Maximum-likelihood phylogeny and species delimitations of Stygobromus anacostensis and other S. tenuis species group taxa for the mtDNA dataset (co1+16s loci). Asterisk represents bootstrap node support greater than 90. Colored bars represented hypothesized MOTU groupings (i.e., species) based on corresponding delimitation analyses.
Figure 12 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 12 Maximum-likelihood phylogenies of of Stygobromus anacostensis and other S. tenuis species group taxa for the (A) mtDNA+nucDNA dataset (co1+16s+18s+28s+h3 loci) and (B) nucDNA dataset (18s+28s+h3 loci). Asterisk represents bootstrap node support greater than 90.
Figure 10 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 10 The type locality of S. anacostensis is a small hypotelminorheic seepage spring just off of Malcolm X Avenue, Shepherd Parkway, Washington, D.C., USA. Photograph by Jenna Keany.
Figure 1 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 1 Stygobromus anacostensis sp. nov., habitus: A holotype male, 5.9 mm (USNM 1606902) B Allotype female, 5.3 mm (USNM 1606903). Scale bar: 1 mm.
Phenotypic and genotypic data of genomic selection study of spring frost tolerance of Norway spruce
Open the record for dataset details and reuse information.
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord
<p>A full data set related to the publication entitled "Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord" published in JMSE - Journal of Marine Science and Engineering located at <a href="https://www.mdpi.com/2077-1312/9/8/814">JMSE | Free Full-Text | Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord (mdpi.com)</a></p> <p> </p>
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord
<p>A data set related to the publication entitled "Photobiological Effects on Ice Algae of a Rapid Whole-Fjord<br> Loss of Snow Cover during Spring Growth in Kangerlussuaq,<br> a West Greenland Fjord" published in JMSE.</p>
The Mesozoic terminated in boreal spring
<p><strong>The Cretaceous-Paleogene (K-Pg) mass extinction ~66 million years ago (Ma) was triggered by the Chicxulub impact on the present-day Yucatán Peninsula. This event caused the highly selective extinction that eliminated ~76% of species, including all non-avian dinosaurs, pterosaurs, ammonites, rudists and most marine reptiles. The timing of the impact and its aftermath have mainly been studied on millennial timescales, leaving the season of the impact unconstrained. By studying fishes that died on the day the Mesozoic ended, we here demonstrate that the impact that caused the K-Pg mass extinction took place during boreal spring. Osteohistology together with stable isotope records of exceptionally preserved perichondral and dermal bones in acipenseriform fishes from the Tanis impact-induced seiche deposits reveal annual cyclicity across the final years of the Cretaceous. Annual life cycles, involving seasonal timing and duration of reproduction, feeding, hibernation, and aestivation, vary strongly across latest Cretaceous biotic clades. We postulate that the timing of the Chicxulub impact in boreal spring and austral autumn significantly influenced selective biotic survival across the K-Pg boundary.</strong></p> <p>All tomographic data (5 stacks of 6 specimens in total) are available here. The methods through which they were acquired:</p> <p><strong>Propagation Phase Contrast Synchrotron Radiation Micro Computed Tomography</strong> </p> <p>Paddlefish specimen FAU.DGS.ND.161.4559.T lacks the paddle-shaped rostrum and all aspects caudal to the pectoral girdle. FAU.DGS.ND.161.4559.T was provided by the Palm Beach Museum of Natural History. Data acquisition took place in May 2018 on Beamline BM05 at the European Synchrotron Radiation Facility, Grenoble, France. The complete specimen was scanned at an average energy of 132 keV using the white beam of BM05 filtered with 0.4 mm of Mo and 9 mm of Cu. The detector was composed of a 2-mm-thick LuAG:Ce scintillator optically coupled to a PCO edge 4.2 CLHS sCMOS camera. The resulting voxel size was 43.5 µm. In order to obtain sufficient propagation phase contrast, the distance between the sample and the detector was set at 5 m. A total of 205 scans, each consisting of 5000 projections taken at 7 ms intervals, were performed with a vertical displacement of 1.4 mm at a vertical field of view of 2.8 mm to ensure a double scan of the complete samples. Scans were performed in half-acquisition mode to enlarge the lateral field of view. The volume was reconstructed using single-distance phase retrieval algorithm coupled with filtered back projection as implemented in the ESRF software PyHST2. Vertical concatenation, 16-bit conversion, and ring artefact corrections were performed using MATLAB scripts developed in-house. The gill region and impact spherules were subsequently scanned at a voxel size of 13.67 μm (filters: 0.4 mm of Mo and 6 mm of Cu, scintillator: LuAG:Ce, 500 μm thick, detected energy: 166 keV, propagation distance: 2.5 m). The samples were scanned in half-acquisition mode in two columns of 77 scans, each consisting of 4998 projections with exposure times of 0.05 s, that were laterally concatenated after reconstruction. Finally, samples (VUA.GG.2017.X-2724) from the paddlefish dentaries and (VUA.GG.2017.MDX-3, VUA.GG.2017.X-2743M and VUA.GG.2017.X-2744M) sturgeon pectoral fin spines were scanned at 4.35 µm voxel size for osteohistological analysis (filters: 3.5 mm of Al plus 11 bars Al with a diameter of 5 mm, scintillator: LuAG:Ce scintillator, 500 µm thick, detected energy: 92 keV, propagation distance: 1.5 m). The samples were scanned in half-acquisition mode in one single column of 22 scans, each consisting of 4998 projections with exposure times of 60 ms.</p> <p> </p> <p>For more information please see paleo.esrf.eu</p> <p>Please cite the original article:https://www.nature.com/articles/s41586-022-04446-1</p>
Stopover use of a large estuarine wetland by dunlins during spring and autumn migrations: linking local refuelling conditions to migratory strategies
<p>1. Carbon and nitrogen stable isotope values measured in blood (plasma and red blood cells) and toenails of dunlins (<em>Calidris alpina</em>) captured at the Tagus estuary, Portugal, during spring and autumn migrations.</p> <p>2. Biometric and haematological parameters of dunlins (<em>Calidris alpina</em>) captured at the Tagus estuary, Portugal, during spring and autumn migrations.</p> <p>3. Biometric parameters and plasma metabolite concentrations of dunlins (<em>Calidris alpina</em>) captured at the Tagus estuary, Portugal, during spring and autumn migrations.</p>
Qualitative responses from students during spring 2019
<p>During the Spring Semester of 2020, an outbreak of a novel coronavirus (SARS-CoV-2) and the illnesses it caused (COVID-19) led to widespread cancelling of on-campus instruction at colleges and universities in the United States and other countries around the world. Response to the pandemic in university settings included a rapid and unexpected shift to online learning for faculty and students. The transition to teaching and learning online posed many challenges, and the experiences of students during this crisis may inform future planning for distance learning experiences during the ongoing pandemic and beyond. Herein, we discuss the experiences of first- and second- year university students enrolled in a biology seminar course as their classes migrated to online environments. Drawing on reported student experiences and prior research and resources, we discuss the ways we will adjust our own teaching for future iterations of the course while offering recommendations for instructors tasked with teaching in online environments.</p>
FIGURE 45 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURE 45. Piper diagram done on the 12 springs where Chamaepinnularia salina was observed.
FIGURE 65 in Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central)
FIGURE 65. Cl versus Na concentrations for Sail spring samples.
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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.