Filters: Tags: Yukon Territory (X) > Categories: Data (X)

Filters Contacts (Less) Alaska Science Center U.S. Geological Survey - ScienceBase U.S. Geological Survey Todd M Hoefen Michaela R Johnson Sarah A Sonsthagen Ecosystems U.S. Geological Survey USGS ScienceBase Team Energy and Minerals Sandra L Talbot Garth E Graham Bernard E Hubbard Raymond F Kokaly Boonstra, R. Karen D. Kelley Robert E Wilson Jonathan S Caine Geology, Geophysics, and Geochemistry Science Center Barbara J Pierson Geology, Geophysics, and Geochemistry Science Center Graham, G.E. Hoefen, T.M Hubbard, B.E. Johnson, M.R. Kelley, K.D. Kokaly, R.F. Michaela R Johnson Raymond Kokaly Damian M Menning Sara J Oyler-McCance Bennett, B. Christy L Haughey Cody, W. J. Harestad, A. S. Hayes, R. D. Kennedy, C. E. Krebs, C. J. Philip Lavretsky Jim A Johnson Cameron Aldridge Jennifer Fike Mineral Resources Program Fort Collins Science Center Heather A Lowers Robert S Cornman Daniel N Esler Kathryn M Langin Steven M Matsuoka GS GGGSC DM Team More... View Results as: JSON ATOM CSV

Sample collection information, single nucleotide polymorphism, and microsatellite data for white-tailed ptarmigan across the species range generated in the Molecular Ecology Lab during 2016 This data release comprises a dataset that contains sample collection information and microsatellite genotypes, and another dataset that contains single nucleotide polymorphism (SNP) genotypes with sample collection information for populations of white-tailed ptarmigan across the species' range. There is also an additional file (accession numbers.xlsx) linking samples to accession numbers in Genbank. This data was collected in order to address the following: The delineation of intraspecific units that are evolutionarily and demographically distinct is an important step in the development of species-specific management plans. Neutral genetic variation has served as the primary data source for delineating units for... Categories: Data; Tags: Alaska, Alberta, British Columbia, Colorado, Microsatellites, All tags... Montana, Mt. Evans, New Mexico, Rocky Mountain National Park, USGS Science Data Catalog (SDC), Utah, Vancouver, Washington, Yukon Territory, biological population management, biota, genetic diversity, Fewer tags New records of vascular plants in the Yukon Territory II Nine native taxa including Carex oligosperma, C. pauciflora, C. pellita, Chimaphila umbellata ssp. occidentalis, Draba densifolia, x Elyleymus hirtiflorus, Eriophorum vaginatum ssp. spissum, Impatiens ? capensis, and Rhus radicans are reported new to the known flora of the Yukon Territory. Eight introduced taxa are also reported as new to the known flora. Significant range extensions within the Territory are reported for 180 native and 17 introduced taxa. Comments are presented on three native taxa and two native taxa are deleted from the Territory. Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Flora, Yukon Territory New records of vascular plants in the Yukon territory III Ten native taxa including Arabis boivinii, Carex aquatilis ssp. stans, Descurainia incisa var. incisa, Draba lonchocarpa var. vestita, Isoetes maritima, Lepidium densiflorum var. macrocarpum, Malaxis paludosa, Phyllodoce X intermedia, Scirpus acutus, Stipa hymenoides and Taraxacum carneocoloratum are reported new to the known flora of the Yukon Territory. Three introduced taxa including Centaurea cyanus, Lolium perenne ssp. multiflorum, Rheum rhaponticum and Sorbaria sorbifolia are also reported as new to the known flora. Significant range extensions within the Territory are reported for 127 native and 21 introduced taxa and comments are presented on four native taxa. Of these, 10 native and three introduced are... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Flora, Yukon Territory Genetic Data from Arctic, Polar, and Saffron Cod and Walleye Pollock, Alaska and Canada, 2011-2017 Fragment data from 11 nuclear microsatellite loci and sequence data from the mitochondrial cytochrome b gene were gathered from Arctic cod (Boreogadus saida) in the Beaufort and Chukchi seas. Mitogenomic analyses of Arctic cod and three other co-distributed gadoids (Polar cod [Arctogadus glacialis], Saffron cod [Eleginus gracilis], Walleye Pollock [Gadus chalcogrammus]) were also completed. Transcriptomic analyses of Arctic cod were used to identify genes associated with environmental perturbations. Genome-wide scans using RAD-Seq of Arctic cod and the co-distributed Polar Cod were collected. Categories: Data; Tags: Alaska, Aleutian Islands, Aquatic Biology, Aquatic ecosystems, Aquatic sciences, All tags... Arctic cod, Arctogadus glacialis, Beaufort Sea, Beaufort Sea, Bering Sea, Biota, Boreogadus saida, Canada, Chukchi Sea, DNA sequencing, DNA, Mitochondrial, Eleginus gracilis, Environment, Fish, Fisheries, Gadus chalcogrammus, Gene flow, Genetic structure, Genetic variance, Genetics, Genetics, Genomics, Gulf of Alaska, Gulf of Saint Lawrence, Marine habitat, Microsatellite Repeats, Norton Sound, Nova Scotia, Polymerase chain reaction, Population dynamics, Population genetics, Saffron cod, Systematics and taxonomy, USGS Science Data Catalog (SDC), Walleye Pollock, Wildlife Biology, Yukon Territory, Fewer tags Mineral predominance map for Nabesna, Alaska, derived from imaging spectrometer reflectance data Reflectance data from HyMap™ were processed using the Material Identification and Characterization Algorithm (MICA), a module of the USGS PRISM (Processing Routines in IDL for Spectroscopic Measurements) software (Kokaly, 2011), programmed in Interactive Data Language (IDL; Harris Geospatial Solutions, Broomfield, Colorado). The HyMap reflectance data are provided and described in this data release. MICA identifies the spectrally predominant mineral(s) in each pixel of imaging spectrometer data by comparing continuum-removed spectral features in the pixel’s reflectance spectrum to continuum-removed absorption features in reference spectra of minerals, vegetation, water, and other materials. Linear continuum removal... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, HyMap, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Imaging spectrometer reflectance data for Nabesna, Alaska Approximately 1,900 line square kilometers of imagery were collected using a HyMap™ sensor (Cocks and others, 1998) mounted on a modified Piper Navajo aircraft. The aircraft was flown at an altitude of approximately 5,050 m (3,480 m above the mean ground surface elevation of 1570 m) resulting in average ground spatial resolution of 6.7 m. Solar elevation and azimuth angles ranged from 42.0-48.3° (average 46.2°) and 134.2-182.4° (average 155°), respectively. HyMap measured reflected sunlight in 126 narrow channels that cover the wavelength region of 455 to 2,483 nm. Data were delivered by the operators of the sensor (HyVista Corp., Australia) in units of radiance (data are available in Kokaly and others, 2017).... Categories: Data; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, HyMap, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags MineralPredominance Mineral predominance data were a derivative product from the Corescan© reflectance data. Corescan Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a... Categories: Data; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Denali Fault Zone Field, Microvein, and Microbeam Data, Kluane Ranges, Yukon, Canada Detailed geologic mapping and sample collection was conducted in rare bedrock exposures of the Denali fault zone during the summer months of 2013, 2014, and 2015 by the U.S. Geological Survey. Data include measurements of structural geologic orientations and documentation of fault zone and host rock characteristics. Representative samples were selected for measurements of fault vein attributes and electron backscatter diffraction studies to characterize deformation mechanisms. All station locations, pertinent sample information, and associated data are included in this data release. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bedrock, Canada, Denali fault, Fault rock, Faulting (geologic), All tags... Geologic structure, Geology, Geophysics, and Geochemistry Science Center (GGGSC), Mineral Resources Program (MRP), Structural Geology, Structural geology, USGS Science Data Catalog (SDC), Yukon Territory, geoscientificInformation, Fewer tags Wolf functional response and regulation of moose in the Yukon We studied kill rates by wolves (Canis lupus) on a rapidly growing moose population in the east-central Yukon. We added these data to the cumulative functional response curve obtained in other North American wolf studies. Our kill rates are higher than those predicted at low moose densities. The kill rate increases rapidly, reaching 2.4 moose per wolf per 100 days at 0.26 moose/km2 and remains constant at this level. No data are available below 0.2 moose/km2 to indicate the shape of the ascending curve. Based on moose distribution and the low prey-switching ability of wolves, we suggest that the functional response curve is of type II. Our wolf predation rate model predicts that moose are held to a low density equilibrium... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: A1-Wildlife, B5-Moose, M1 Fauna, Yukon Territory Kill rate by wolves on moose in the Yukon We studied the kill rate by wolves (Canis lupus) after a large-scale wolf removal when populations of wolves, moose (Alces alces), and woodland caribou (Rangifer tarandus caribou) were all increasing. We followed a total of 21 wolf packs for 4 winters, measuring prey selection, kill rates, and ecological factors that could influence killing behavior. Wolf predation was found to be mainly additive on both moose and caribou populations. Kill rates by individual wolves were inversely related to pack size and unrelated to prey density or snow depth. Scavenging by ravens decreased the amount of prey biomass available for wolves to consume, especially for wolves in smaller packs. The kill rate by wolves on moose calves... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: A1-Wildlife, M1 Fauna, Yukon Territory Genetic Data from Barrow's Goldeneye and Common Goldeneye This data set describes nuclear microsatellite genotypes derived from eight autosomal loci (Aph02, Aph11, Aalµ1, Sfiµ4, Smo4, Smo7, Smo12, and Sfiµ8) and accession numbers for double digest restriction-site associated DNA (ddRAD) sequences. Categories: Data; Tags: Alaska, Alleles, Animals/Vertebrates, Barrow's Goldeneye, Biota, All tags... Birds, British Columbia, Bucephala clangula, Bucephala islandica, Canada, Coastal ecosystems, Common Goldeneye, DNA, Denmark, Environment, Estuarine habitat, Gene flow, Genetic markers, Genetics, Genetics, Genotype, Microsatellite Repeats, Migratory birds, Ontario, Polymerase chain reaction, Population genetics, Terrestrial ecosystems, USGS Science Data Catalog (SDC), Waterfowl, Waterfowl, Wildlife, Wildlife Biology, Yukon Territory, Fewer tags White mica wavelength position map for Nabesna, Alaska, derived from imaging spectrometer reflectance data A map of the wavelength position of the white mica 2,200 nanometer (nm) Al-OH absorption feature was compiled for a region of Nabesna, Alaska, using HyMap™ reflectance data provided and described in this data release. White mica wavelength position was computed for each pixel with spectrally predominant muscovite or illite. The computation was made using a function of the USGS PRISM (Processing Routines in IDL for Spectroscopic Measurements) software (Kokaly, 2011), programmed in Interactive Data Language (IDL; Harris Geospatial Solutions, Broomfield, Colorado). The PRISM function applies linear continuum-removal (Clark and Roush, 1984) to the 2,200 nm feature and fits a parabola to three channels: the channel... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, HyMap, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imageryBaseMapsEarthCover, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Contrasting stress response of male arctic ground squirrels and red squirrels A hormonal-challenge protocol was used to compare the stress response of males of Arctic ground squirrels and red squirrels during the breeding season (May). These squirrels live in the same boreal forest of the Yukon, but have very different life histories and utilize the forest in markedly different ways. Red squirrels had levels of total cortisol, maximum corticosteroid-binding capacity, and free cortisol that were 5, 7, and 2 times, respectively, those of Arctic ground squirrels. Red squirrels were resistant to suppression by an artificial glucocorticoid, dexamethasone (DEX); Arctic ground squirrels were not. Cortisol levels in red squirrels responded slowly but continuously to the ACTH injection; Arctic ground... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Mammals, Yukon Territory Corescan© Hyperspectral Core Imager, Mark III system data collected for the characterization of mineral resources near Nabesna, Alaska, 2014-2016 Corescan© Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a spatial resolution of approximately 500 nanometers (nm) for 514 spectral channels covering... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, USGS Science Data Catalog (SDC), VNIR, Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Indices of population size for burrowing mammals There are few quick, precise indices for predicting population size of semifossorial mammals. We assessed the utility of powder-tracing and infrared thermal imaging to predict population size in the Arctic ground squirrel (Spermophilus parryii) in the boreal forest of southwestern Yukon. Density estimated from livetrapping was strongly and linearly correlated with both indices (r = 0.81 for powder-tracking; r = 0.91 for infrared imaging). The slope of the relationship between density and the infrared index (0.10) deviated from a slope of 1. The slope of the relationship between density and the powder-tracking index (0.82) did not deviate from a slope of 1, but our power to detect departures from this slope using... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Mammals, Yukon Territory Lumpy jaw in wild sheep and its evolutionary implications The distribution and prevalence of mandibular osteomyelitis, lumpy jaw, and other dental anomalies in wild sheep were investigated and their biological and evolutionary implications were assessed. Our survey was based on 3,363 mandibles of wild sheep and 1,028 from domesticated varieties. Lumpy jaw is widespread in wild sheep of North America, but it is rare or absent in wild sheep from Eurasia. Among the subspecies of Ovis spp. in North American, the thinhorn sheep (Ovis dalli) were the most seriously impacted, with a prevalence in Dall's sheep (O. dalli dalli) of 23.3% and 29.3% in Stone's sheep (O. dalli stonei). Among the bighorns (O. canadensis), the Rocky Mountain subspecies (O. canadensis canadensis) had... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Mammals, Yukon Territory Calibration Measurements of reference materials were made on the Corescan© HCI-III to evaluate the supplied channel wavelength positions and bandpass values. Wavelength position and bandpass of channels in a spectrometer, referred to as full-width half max (FWHM) in the contractor's documentation (Corescan_Product_MetaData_v3.pdf), are two fundamental spectral characteristics that need to be known in order to spectrally identify minerals by comparison to a spectral library, like the Material Identification and Characterization Algorithm (MICA) analysis used to generate the mineral predominance maps. Spectrometers with finer bandpass can reveal greater spectral detail that can be related to a material’s chemical composition... Categories: Data; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Genomic Data of North American Sea Ducks This data set describes accession numbers for nucleotide sequence data derived from whole mitochondrial genome and double digest restriction-site associated DNA (ddRAD). Categories: Data; Tags: Alaska, Animals/Vertebrates, Baja California, Barrow's Goldeneye, Biota, All tags... Birds, Black Scoter, British Columbia, Bucephala albeola, Bucephala clangula, Bucephala islandica, Bufflehead, Clangula hyemalis, Common Eider, Common Goldeneye, Common Merganser, DNA, DNA, Mitochondrial, Environment, Estuarine habitat, Genetic markers, Genetic structure, Genetics, Genetics, Harlequin Duck, Histrionicus histrionicus, Hooded Merganser, King Eider, Long-tailed Duck, Lophodytes cucullatus, Maine, Maryland, Massachusetts, Melanitta americana, Melanitta deglandi, Melanitta perspicillata, Mergus merganser, Mergus serrator, Migratory birds, Migratory species, Minnesota, Northwest Territories, Nova Scotia, Nunavut, Ontario, Oregon, Polymerase chain reaction, Polymorphism, SNP, Polysticta stelleri, Quebec, Red-breasted Merganser, Rhode Island, Saskatchewan, Somateria fischeri, Somateria mollissima, Somateria spectabilis, Spectacled Eider, Steller's Eider, Surf Scoter, USGS Science Data Catalog (SDC), Virginia, Washington, Waterfowl, Wetland ecosystems, White-winged Scoter, Wildlife, Wildlife Biology, Yukon Territory, Fewer tags Diversity of Agromyzidae (Diptera) [leafmining flies] in disjunct grasslands of the southern Yukon Territory The diversity of Agromyzidae (Diptera) associated with disjunct xeric grasslands was studied at six south-facing slopes in the southern Yukon Territory, Canada. Agromyzidae was the most diverse of 32 families of Brachycera at the sites, with 34 species (485 specimens) collected. Eight new species are described: Liriomyza nares sp.nov., Metopomyza adretana sp.nov., Phytoliriomyza depricei sp.nov., Phytoliriomyza triangulata sp.nov., Phytomyza conglomerata sp.nov., Phytomyza dioni sp.nov., Phytomyza klondikensis sp.nov., and Phytomyza takhiniensis sp.nov. Twenty previously described species were identified and six other unnamed species were represented by females only. Fourteen of the 20 previously described species... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1 Fauna, M1-Invertebrates, Yukon Territory Genetic Data from Three Accipiter Species, North America, 1996-2014 This data set provides sample collection information and genetic data used to identify relationships between groups of North American accipiters, including one hybrid. Genetic data includes gender identification, nuclear and mtDNA sequence markers, and microsatellite genotypes derived from 20 autosomal loci (Age1302, Age1303, Age1304, Age1305, Age1306, Age1307, Age1308, Age1309, Age1310, Age1311, Age1312, Age1313, Age1314, Age1316, Age1317, Age1318, Age1319, Age1320, Age1321, and Age1322). Categories: Data; Tags: Accipiter cooperii, Accipiter gentilis, Accipiter striatus, Alaska, Animals/Vertebrates, All tags... Biota, Birds, Birds of prey, British Columbia, Canada, Cooper's Hawk, DNA sequencing, DNA, Mitochondrial, Eagles/Falcons/Hawks and Allies, Ecological processes, Environment, Genetic diversity, Genetic variance, Genetics, Genetics, Genotype, Hybrids, Microsatellite Repeats, Minnesota, New Jersey, North Dakota, Northern Goshawk, Polymerase chain reaction, Population genetics, Sharp-shinned Hawk, Systematics and taxonomy, USGS Science Data Catalog (SDC), Utah, Wildlife, Wildlife Biology, Wisconsin, Yukon Territory, Fewer tags 1 2 »