Data

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...

This data package contains four tables related to helminths and bacteria identified in the guts of North American shrews (Genus: Sorex). Tables include: two tables of specimen information about each shrew, such as species, museum collection identification, and NCBI accession IDs; one table of NBCI GenBank accession numbers of previously identified DNA sequences used in this study to...

This dataset contains 40Ar/39Ar isotopic data and ages for rocks from the Yukon-Tanana upland of eastern Alaska and the northern Aleutian Range of south-central Alaska. The entire sample suite was collected as part of geological mapping and supporting geochemical and geochronological analysis were conducted from 2013 to 2019 by the Mineral Resources Program of the U.S. Geological Survey...

These data describe an exercise in which known age and sex class of 100 Barrow's goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

In 2016, with National Park Service support, several previously undated plutons were sampled in Glacier Bay National Park and Preserve along the west side of Glacier Bay for age determinations. Geochronologic analyses were conducted to determine the ages of the plutonic rocks in the Glacier Bay area. Five samples were collected by Frederic Wilson (USGS Alaska Science Center), from Dundas...

This dataset provides low-temperature thermochronometric data from 16 rock samples collected from the Revelation Mountains area in western Alaska Range. These data are from three different analyses used to estimate cooling ages: 1) apatite (U-Th)/He, 2) zircon (U-Th)/He, and 3) apatite fission-track.

This data set contains 3 tables containing uranium-lead (U-Pb) isotopic data and crystallization ages of zircon and titanite from igneous, metamorphic, and sedimentary rocks collected from the Yukon-Tanana upland of eastern interior Alaska between 2013 and 2019. Bulk samples of igneous and metamorphic rocks were processed into concentrated mineral separates of zircon and (or) titanite in...

This data release includes 2 child items with tracking data for Thick-billed Murres, a seabird species found in the Arctic and regions of the North Pacific and North Atlantic oceans. Child Item 1: "Argos Satellite Tracking Data for Thick-billed Murres (Uria lomvia) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite...

This data release includes 2 child items with tracking data for Common Murres, a seabird species that is found in regions of the North Pacific and Atlantic oceans, often in dense breeding colonies on cliffs and in large flocks on the water. Child Item 1: "Argos Satellite Tracking Data for Common Murres (Uria aalge) - Processed Data" -- Quality-controlled data collected from Argos...

This data release includes 2 child items with tracking data for Red-faced Cormorants, a seabird species that is found only in the North Pacific Ocean, breeding and wintering from southern Alaska and throughout the Aleutian Islands to Far Eastern Russia. Child Item 1: "Argos Satellite Tracking Data for Red-faced Cormorants (Phalacrocorax urile) - Processed Data" -- Quality-controlled data...

This data release includes 2 child items with tracking data for Pelagic Cormorants, a seabird species that breeds throughout the northern Pacific Ocean and spends the winter in East Asia and throughout coastal portions of western North America. Child Item 1: "Argos Satellite Tracking Data for Pelagic Cormorants (Phalacrocorax pelagicus) - Processed Data" -- Quality-controlled data...

The USGS mapped geomorphic features in the lower 7.5 kilometers of the Taiya River valley bottom in and near Klondike Gold Rush National Historical Park near Skagway, Alaska. This dataset presents delineations of off-main-stem channels and geomorphic surfaces. Boundaries were prepared from 2003 lidar elevation data and updated using 2017 and 2018 aerial orthophotographs at eroding...