Pagano, Anthony M. (ORCID:0000-0003-2176-0909) Rode, Karyn D. (ORCID: 0000-0002-3328-8202) Nicholson, Kerry L. (ORCID: 0000-0001-9951-9897) Leacock, William B. (ORCID: 0000-0001-7495-7751) Stricker, Craig A. (ORCID: 0000-0002-5031-9437) Robbins, Charles T. (ORCID: 0000-0003-1207-7745) 20250417 tabular digital data Metabolic Rate, Body Composition, Diet, Behavior, Blood Chemistry, Stable Isotope, Tri-axial Accelerometer, and GPS Locations of Grizzly Bears (Ursus arctos) on the North Slope of Alaska, USA, 2023 . Anchorage, Alaska U.S. Geological Survey, Alaska Science Center Suggested Citation: Pagano, A.M., Rode, K.D., Nicholson, K.L., Leacock, W.B., Stricker, C.A., Robbins, C.T., 2025, Metabolic rate, body composition, diet, behavior, blood chemistry, stable isotope, tri-axial accelerometer, and GPS locations of grizzly bears (Ursus arctos) on the North Slope of Alaska, USA, 2023: U.S. Geological Survey data release, https://doi.org/10.5066/P1L97U2I https://doi.org/10.5066/P1L97U2I This dataset is one table with archival logger data containing measures of tri-axial acceleration and ambient temperature measured at 16 Hz in collars (Vertex Plus collar with camera option, Vectronic Aerospace GmbH, Berlin, Germany) attached to 12 grizzly bears that were instrumented on the North Slope of Alaska, USA, for 17 - 22 days in 2023. These data were collected to gain insights into the field metabolic rate, diet, behavior, movement, and body composition of Arctic grizzly bears on the North Slope of Alaska. We captured 12 grizzly bears (adult and subadult) on the North Slope of Alaska, during the months of August and September. Bears were fitted with collars which recorded video, GPS location, and tri-axial acceleration. Additionally, we measured field metabolic rate, changes in body composition, and used measures of blood chemistry and stable isotopes to examine diet. Each bear was captured two times approximately 21 days apart. For technical and logistic reasons, not all data were collected for each bear. This data package is in four tables. Each table has a bear id column connecting data from the four datasets. 20230805 20230902 observed Complete None planned North Slope Alaska -151.991 -144.095 70.501 69.461 USGS Metadata Identifier USGS:68014123d4be0263cab1085e ISO 19115 Topic Category Biota Environment NASA GCMD Earth Science Keyword Thesaurus Animals/Vertebrates Mammals Carnivores Bears Species Life History Use/Feeding habitat USGS CSA Biocomplexity Thesaurus Animals Mammals Metabolism Bioenergetics USGS Thesaurus Wildlife Coastal ecosystems Animal behavior Biogeography None Grizzly bear Ursus arctos USGS Geographic Names Information System (GNIS) Alaska None Animals Mammals Vertebrates Bears Grizzly bears ITIS Integrated Taxonomic Information System Unknown online database online ITIS-North America Taxonomic details retrieved November 20, 2024 from the Integrated Taxonomic Information System online database https://www.itis.gov https://doi.org/10.5066/F7KH0KBK Species identification was made by skilled observers in the field based on general appearance. Grizzly bears are not easily confused with other species. Taxonomy is complete for all samples. No voucher specimens were collected. Kingdom Animalia Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata Subphylum Vertebrata Infraphylum Gnathostomata Superclass Tetrapoda Class Mammalia Subclass Theria Infraclass Eutheria Order Carnivora Suborder Caniformia Family Ursidae Genus Ursus Species Ursus arctos Grizzly bear TSN: 180543 No access constraints. No use constraints. These data are marked with a Creative Common CC0 1.0 Universal License and are in the public domain. It is requested that this USGS data release be cited for any subsequent publications that reference or utilize these data. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. U.S. Geological Survey, Alaska Science Center Mailing and Physical

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Anchorage Alaska 99508 USA 907-786-7000 gs-ak_asc_datamanagers@usgs.gov Pagano, A.M. Rode, K.D. Nicholson, K.L. Leacock, W.B. Stricker, C.A. Robbins, C.T. 2025 journal article Oecologia 208 online SpringerNature Pagano, A.M., Rode, K.D., Nicholson, K.L., Leacock, W.B., Stricker, C.A., Robbins, C.T., 2026. The effects of carnivory and herbivory on the energy balance of Arctic grizzly bears. Oecologia 208. https://doi.org/10.1007/s00442-025-05830-0 https://doi.org/10.1007/s00442-025-05830-0 Acceleration data is directly imported from the archival loggers. The manufacturer's estimate of range is ± 4 g-forces. Attribute values fall within expected ranges. No data were omitted and there are no missing data. FIELD: Grizzly bears were captured by injecting them with immobilizing drugs using a combination of tiletamine HCl and zolazepam HCl (Telazol) through projectile syringes fired from a helicopter. Archival loggers (Vertex Plus collar with camera option, Vectronic Aerospace GmbH, Berlin, Germany) recorded tri-axial acceleration (Surge (x), Heave (y), and Sway (z)), ambient temperature, and time-of-day at 16 Hz. We collected continuous measures of tri-axial accelerometer and ambient temperature data at 16 Hz from 12 grizzly bears on the North Slope of Alaska, USA in 2023 over 17-22 days. Unknown LITERATURE CITED: Pagano, A.M., Rode, K.D., Cutting, A., Owen, M.A., Jensen, S., Ware, J.V., Robbins, C.T., Durner, G.M., Atwood, T.C., Obbard, M.E., Middel, K.R., Thiemann, G.W., Williams, T.M., 2017. Using tri-axial accelerometers to identify wild polar bear behaviors. Endangered Species Research 32:19-33. https://doi.org/10.3354/esr00779 Unknown North Slope Alaska grizzlyBear_archivalloggerdata_NorthSlope_Alaska_2023.csv Archival logger data of tri-axial accelerometer and ambient temperature measures from 12 grizzly bears on the North Slope of Alaska, USA in 2023. Presented in a Comma Separated Value (CSV) formatted table. Author defined Bear A unique identifier assigned to each bear in this dataset. Corresponds to the "Bear" attribute in the other table included with this data package. Author defined 148 202 Datetime The date and time when the archival logger recorded a measurement in Universal Coordinated Time (UTC). Author defined 2023-08-05T18:20:00.0050 2023-09-02T22:54:59.9379 Date and time (YYYY-MM-DDThh:mm:ss.ffff; UTC) AccelX Acceleration along the surge (x) axis in g-forces Author defined -4.00 3.97 g-forces AccelY Acceleration along the heave (y) axis in g-forces Author defined -4.00 3.97 g-forces AccelZ Acceleration along the sway (z) axis in g-forces Author defined -4.00 3.97 g-forces Temp Measure of ambient temperature in degrees Celsius Author defined 4 47 Degrees Celsius U.S. Geological Survey USGS ScienceBase Team Mailing and Physical

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Denver Colorado 80225 USA 1-888-275-8747 sciencebase@usgs.gov The U.S. Geological Survey, Alaska Science Center is the authoritative source of these data, distributed by ScienceBase (a USGS Trusted Digital Repository). Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. CSV Tabular data in CSV format; FGDC metadata in XML and HTML formats. https://doi.org/10.5066/P1L97U2I None 20251201 U.S. Geological Survey, Alaska Science Center Mailing and Physical

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Anchorage Alaska 99508 USA 907-786-7000 gs-ak_asc_datamanagers@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (CSDGM) FGDC-STD-001.1-1999