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611 results for “eastern North America”
Bayesian Analysis of Tree Distributions Across Space and Time in Eastern North America 2010-2011
The distributions of many organisms are spatially autocorrelated, but it is unclear whether including spatial terms in species distribution models (SDMs) improves projections of future species distributions. We provide the first comparative test of a purely spatial SDM, a purely non-spatial SDM, and an SDM that combines spatial and environmental information. Spatial SDMs provided better fits to the calibration data, more accurate predictions of a hold-out validation data set of modern trees, and lower false positive rates at all time periods than non-spatial SDMs. Hindcasted projection of spatial SDMs had higher variance than those of non-spatial SDMs. Overall predictive performance of non-spatial and spatial SDMs varied temporally and as a function of niche overlap. Ecological modelers should include spatial terms in SDMs used for projecting future distributions of species.
Modeling Range Expansion of Hemlock Woolly Adelgid in Eastern North America 1951-2009
Range expansion by native and non-native species will continue to be a major component of global change. Anticipating the potential effects of changes in species distributions requires models capable of forecasting population spread across realistic, heterogeneous landscapes and subject to spatiotemporal variability in habitat suitability. Several decades of theory and model development, as well as increased computing power and availability of fine-resolution GIS data, now make such models possible. This R code allows simulation of the spread of the hemlock woolly adelgid (HWA, Adelges tsugae) under climatic conditions experienced from December of 1951 until March of 2009. The code describes a spatially explicit stochastic model that combines dynamic dispersal and population processes with fine-resolution maps characterizing spatiotemporal heterogeneity in winter temperature and hemlock abundance to model range expansion of HWA. The model is parameterized using multi-year datasets describing population and dispersal dynamics of HWA and is applied to eastern North America.
Regional Distribution and Abundance of Eastern Hemlock in Eastern North America 2010
We developed comprehensive maps on the distribution and abundance of hemlock for the purposes of mapping the host distribution, and modeling the spread, of the hemlock woolly adelgid. Multiple statistical models were used to map the distribution of hemlock. Hemlock occurrence data were taken from the FIA database and multiple environmental predictors were gathered from various databases as described in methods. The raster map depicts the predicted abundance of hemlock m2 basal area per hectare) across its range in eastern North America.
Annual Maps of Mean Winter Temperature for Eastern North America 1951-2009
We developed annual raster maps depicting spatiotemporal variation in mean winter temperature for the purposes of modeling the spread of the hemlock woolly adelgid. The maps are based on the PRISM and WorldClim datasets as described in methods.
Supplementary files for Vertical Displacements and Sea-Level Changes in Eastern North America Driven by Glacial Isostatic Adjustment: an Ensemble Modeling Approach
<p>Model input and output files associated with the manuscript entitled "Vertical Displacements and Sea-Level Changes in Eastern North America Driven by Glacial Isostatic Adjustment: an Ensemble Modeling Approach" that will be submitted to Journal of Geophysical Research.</p>
A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin
<p>The two plate model archives in this directory are linked to the paper (<em>Geochemistry, Geophysics, Geosystems</em>, in press):</p> <p>A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin by Edward J. Clennett1, Karin Sigloch1, Mitchell G. Mihalynuk2, Maria Seton3, Martha A. Henderson2, Kasra Hosseini1,4, Afsaneh Mohammadzaheri1, Stephen T. Johnston5, and R. Dietmar Muller3</p> <p>1. Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, UK</p> <p>2. British Columbia Geological Survey, P.O. Box Stn Prov Govt, Victoria, BC, V8W 9N3, Canada</p> <p>3. EarthByte Group, School of Geosciences, The University of Sydney, NSW 2006, Australia</p> <p>4. The Alan Turing Institute, British Library, 96 Euston Road, London NW1 2DB, UK</p> <p>5. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada</p> <p>The zipped archive contains two plate models: <strong>Clennett_etal_2020_M2019.zip</strong> and <strong>Clennett_etal_2020_S2013.zip</strong>. The former is our model in the Müller et al. (2019) reference frame, and the latter is our model implemented into the Shephard et al. (2013) plate reconstruction. Both of these folders contain the same types of files: coastlines, plate boundaries, plate topologies, a rotation file and terrane shapefiles.</p> <p>To view the models, open GPlates (downloadable at: <a href="https://www.gplates.org">www.gplates.org</a>), click 'File' > 'Open Project', navigate to the folder containing the desired model, and then click on the file <strong>Clennett_etal_2020_G3_XXXX.gproj</strong>. This will simultaneously open all the files that comprise the model. A layers panel will appear, with the option to turn on/off certain files. The view can be changed by clicking on the globe, and the model can be run by clicking the play button in the animation bar, starting from 170Ma. Features can be inspected by clicking the 'choose feature' tab, selecting a feature, and clicking 'query feature'.</p> <p>The files that comprise the model are described below:</p> <p>1. <strong>Clennett_etal_2020_Coastlines.gpml</strong>: Coastlines used in the reconstruction. The coastlines of western North America and Mexico were edited from the global model to account for later terrane accretions. </p> <p>2. <strong>Clennett_etal_2020_NAm_bounds.gpml</strong>: File containing the new plate boundaries digitised in this study.</p> <p>3. <strong>Clennett_etal_2020_Plates.gpml</strong>: File containing the edited plate boundaries of the global model, as well as our new continuously-closing plate topologies.</p> <p>4. <strong>Clennett_etal_2020_Rotations.rot</strong>: This is the rotation file that contains the relative motions between plates, terranes and plate boundaries for western North America and the eastern Pacific basin. The first column specifies the plate ID, the second column the timestep, the third, fourth and fifth columns are the latitude, longitude and angle of the stage rotations, and the sixth column is the plate that the feature moves relative to. Most lines are accompanied with a comment describing the rotation.</p> <p>5. <strong>Clennett_etal_2020_Terranes.gpml</strong>: This file contains all the terranes shown in the model. We further divided these into superterranes, so that each can be coloured accordingly for better visualisation purposes: a. Angayucham.gpml b. Farallon.gpml c. Guerrero.gpml d. Insular.gpml e. Intermontane.gpml f. Kula.gpml g. North_America.gpml h. Western_Jurassic.gpml</p> <p>6. <strong>Movie</strong> <strong>S1</strong>. Movie showing plate evolution at 1 million-year intervals, embedded within the Muller et al. (2019) global model. Blue boundaries are subduction zones, red boundaries are mid-ocean ridges, green boundaries are transform faults, and pink boundaries are other unspecified boundaries. Plates are not labelled but can be identified from figures 5-10.</p> <p>7. <strong>Movie S2</strong>. Movie showing plate evolution at 1 million-year intervals, embedded within the Shephard et al. (2013) global model. Blue boundaries are subduction zones, red boundaries are mid-ocean ridges, green boundaries are transform faults, and pink boundaries are other unspecified boundaries. Plates are not labelled but can be identified from figures 5-10.</p> <p> </p> <p>The agegrids and spreading rate grids associated with this model can be accessed at: <a href="https://repo.gplates.org/webdav/PlateModel_Age_SR_Grids/Clennett_etal_2020_G3/" target="_blank" rel="noopener">https://repo.gplates.org/webdav/PlateModel_Age_SR_Grids/Clennett_etal_2020_G3/</a></p>
A lack of population structure characterizes the invasive Lonicera japonica in West Virginia and across eastern North America
<p>Figure S1. Mig-seq primers used in the current study.</p> <p>Dataset S1. SNP data in .vcf format for Lonicera japonica.</p> <p>Figure S2: STRUCTURE analyses. Left: Delta K plot showing the optional number of ancestral population clusters (based on Evanno et al. 2015 method). Right: Ancestry plots from analysis with ParallelStructure for k = 3 (above) and k = 5 (below). Colors correspond to each ancestral cluster.</p>
Figure 17 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 17 Caleremaeus nasutusn. sp., transmitted-light micrographs of adult: A – legs I-IV, abaxial view (trochanter II not shown); B – femur II (cerotegument mostly separated; insert = seta d of femur I); C – tibia and tarsus I; D – chelicera, abaxial view. Scale bars: 20 µm (A); 10 µm (B-D).
Figure 18 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 18 Transmitted-light micrographs of C. monilipes,(A-D) and Caleremaeus'retractus' group from New York (E-G): A – adult (from Sweden), rostral bulge, deep focus to show embossed pattern; B – adult (from Spain), setah2 and nearby cerotegument; C – deutonymph (from Sweden), pygidial region, ventral view of flattened specimen; D – same, leg I and rostral region, dorsal view (lower left insert: tibia II coupled seta d and solenidion); E – anterior part of coxisternum; F – anterior third, ventrolateral view; G – deutonymph, hysterosoma, lateral view. Scale bars: 20 µm (C-G); 10 µm (A, B).
Figure 19 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 19 Food boluses and fecal pellets from within specimens of Caleremaeus retractus(A-E), C. arboricolus(F-H) and C. nasutus n. sp. (I-L): A – food bolus in adult; B – part of different bolus in same adult; C – fecal pellet in different adult; D – same, different adult; E – fecal pellet in tritonymph (arrow on spiral thickening of plant tracheid cell); F – food bolus in adult; G – food bolus in deutonymph; H – food bolus in protonymph; I – food bolus in adult; J, K, L – fecal pellet in three different adults. Scale bar: 10 µm (all to same scale).
Figure 14 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 14 Caleremaeus nasutusn. sp., scanning electron micrographs of adult: A – dorsal view cerotegument broken from central region of notogaster; B – ventral view, with enlargement of preanal region in upper right (* indicates location of C); C – fractured cerotegument on ventral plate; D – subcapitulum and surrounding region, ventral view; E – bothridial region, anterior view; F – proterosoma, anterior view. Scale bars: 50 µm (A, B); 10 µm (D-F); 2 µm (C).
Figure 16 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 16 Caleremaeus nasutusn. sp., transmitted-light micrographs of adult: A – end of posterior notogastral bulge, region of setal pair h1, dorsal view (insert = h1from another specimen, arrow to basal cerotegument nodule); B – posterolateral contour of notogaster, dorsal view; C – notogastral seta la, entire (above) and with isotropic outer layer removed leaving only birefringent core; D – posterior contour of notogaster, ventral view (left p1 and p2 lost, leaving only basal cerotegument nodule; insert = enlargedp1); E – coxisternum, ventral view (arrowhead on projection at end of discidial ridge); F – region above legs III-IV, lateral view (arrowhead as for F); G – preanal organ, optical section; H – region of aggenital enantiophysis. Scale bars: 10 µm (A-F, H); 5 µm (G).
Figure 15 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 15 Caleremaeus nasutusn. sp., transmitted-light micrographs of adult: A – prodorsum, dorsal view; B – anterior prodorsal lobe, different specimen; C – posterior prodorsum and sejugal region, dorsal view; D – bothridial seta; E – prodorsum, lateral view (gnathosoma removed); F – optical section of E, focused near midline; G – optical section of rostrum, anterior to top, dorsal view, focused on embossed figure on inner face of rostral bulge; H – same, different specimen, anterodorsal view of dissected fragment (rostrophragma broken on left). Scale bars: 20 µm (A-E); 10 µm (F-H).
Figure 13 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 13 Caleremaeus nasutusn. sp., adult: A – dorsal view (legs mostly omitted); B – ventral view (legs omitted). Scale bar: 50 µm.
Figure 12 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 12 Caleremaeus arboricolusn. sp., transmitted-light micrographs of juveniles: A – exuvial scalp of larva, with inserts (top to bottom) of enlarged setaeda, dp, lp, h1; B – protonymph, pygidial region, dorsal view; C – deutonymph, lateral view; D – same, dorsal view; E – tritonymph, pygidial region; F – exuvial scale attachments, lateral view, with sclerotized pocket in underside of larval scalp (kp) on top, detached and nested cornicle k of proto- and deutonymph from same specimen on bottom; G – protonymph, ventral view; H – partial coxisternum of deutonymph, ventral view, anterior to right (insert = trochanter III seta v); I – dorsodistal tubercle of tibia I of deutonymph (lower) and tritonymph (upper: partial, better showing barbs and velum of setad); J – deutonymph, dorsal view of partial prodorsum and leg I (insert: coupled seta d and solenidion of tibia II); K – femur I setabvம of deutonymph, intact (left) and with isotropic external layer separated from birefringent core (right). Scale bars: 20 µm (A-E, G); 10 µm (H-J); 2 µm (F, K).
Figure 11 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 11 Caleremaeus arboricolusn. sp., transmitted-light micrographs of adult: A – legs I-IV, abaxial view (trochanter II not shown); B – base of femur I, abaxial; C – same, ventral view (arrow to partial retrotectum); D – trochanter III, ventral view (arrow to partial retrotectum), with base of femur (twisted); E – tibia and tarsus I, adaxial view (lower left insert =ft″ and base of solenidionω1 of different specimen); F – solenidion φ of tibia II; G – proximodorsal part of two femora I, showing variants of femur I saccule (arrow to stigma); H – femur II and partial genu, abaxial view; I – femur III, abaxial view; J – aggenital region and abaxial view of femur IV; K – trochanter and base of femur IV, abaxial view. Scale bars: 20 µm (A); 10 µm (B-E); 5 µm (G-K); 2 µm (F).
Figure 10 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 10 Caleremaeus arboricolusn. sp., transmitted-light micrographs of adult: A – part of series of knots at margin of posterior notogastral bulge; B – detached notogastral cerotegument (optical cross-section); C – ventral plate cerotegument (face-on) near seta ag; D – coxisternum of male, surface focus (insert lower right = spermatopositor, arrowhead on largest alveolus); E – same, deeper focus; F – female with mostly extended ovipositor; G – distal part of ovipositor, showing ventral lobe (right) and one (of pair) dorsal lobe (left); H – coronal seta of ovipositor. Scale bars: 50 µm (F); 20 µm (D, E); 5 µm (A, B, G); 2 µm (C, H).
Figure 6 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 6 Caleremaeus retractus(Banks), juveniles: A – protonymph, dorsal view; B – deutonymph, lateral view, with smaller setae omitted from larval (SLa)and protonymphal (SPn) scalps. Dots indicate that seta is on exuvial scalp (one for larval, two for protonymphal). Scale bars: 50 µm (B); 10 µm (A).
Figure 4 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 4 Caleremaeus retractus(Banks), legs of adult (abaxial aspect, trochanter omitted from I, II): A – leg I; B – leg II; C – leg IV. Scale bar: 20 µm.
Figure 5 in Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus
Figure 5 Caleremaeus retractus(Banks), transmitted-light micrographs of near-topotypical adults: A – legs I-IV, abaxial view (trochanters I, II not shown); B – trochanter and base of femur IV, mid-depth focus; C – same, deeper focus; D – partial leg III, with enlarged femoral seta d (upper left insert, arrow to basal cerotegument nodule) and tibial solenidionφ (upper right insert); E – left gena and rutellum, ventral view (removed from subcapitulum); F – chelicera, adaxial view; G – egg removed from oviduct. Scale bars: 20 µm (A, G); 10 µm (B-D, F); 5 µm (E).
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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.