Schoen, Sarah K. (ORCID: 0000-0002-5685-5185) Heflin, Brielle M. (ORCID: 0000-0002-4836-9187) Piatt, John F. (ORCID: 0000-0002-4417-5748) Arimitsu, Mayumi L. (ORCID: 0000-0001-6982-2238) 20180215 tabular digital data Marine Ecology near Tufted Puffin Colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014 . Anchorage, Alaska U.S. Geological Survey, Alaska Science Center Suggested Citation: Schoen, S.K., Heflin, B., Piatt, J.F., Arimitsu, M.L., Drew, G.S., Douglas, D.C., and Renner, M., 2018, Marine ecology near Tufted Puffin colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014: U.S. Geological Survey data release, https://doi.org/10.5066/F7TQ60GV https://doi.org/10.5066/F7TQ60GV Data were collected to index the body condition of Tufted Puffin chicks on colonies in the North Pacific and Bering Sea during August or 2012-2014. This dataset contains information on every chick measured. Data consists of: colony name, date, wing chord (mm), mass (g), culmen (mm), tarsus (mm), body condition (mass/wing), and burrow observations. Chick body condition was only used for analyses if there were measurements from 12 or more chicks at each colony. Seabirds are strongly shaped by the energetic constraints they face in supplying food to their chicks at centralized colonies while foraging for patchily distributed prey in surrounding waters. The purpose of these data are to compare chick conditions among the colonies and find how they differ with different prey availability. 20120814 20140822 observed Complete None planned Our study area spanned 2,400 km from Kodiak Island in the northern Gulf of Alaska westward along the Alaska Peninsula to the terminus of the Aleutian Archipelago. -180.0000 -138.5156 66.9301 48.6910 USGS Metadata Identifier USGS:ASC169 ISO 19115 Topic Category Biota Oceans Environment NASA GCMD Earth Science Keyword Thesaurus Birds Marine ecosystems USGS Biocomplexity Thesaurus Aquatic birds USGS Thesaurus Ecology None Chick conditions Body mass Culmen Tarsus Wing chord Burrow USGS Geographic Names Information System (GNIS) Alaska Gulf of Alaska Aleutian Islands Alaska Peninsula North Pacific Bering Sea None Tufted puffin ITIS Integrated Taxonomic Information System Unknown online database online ITIS-North America Details of taxonomic rank above the class aves retrieved November 5, 2024, from the ITIS online database https://www.itis.gov https://www.itis.gov Taxonomic rank above the class aves (birds) and mammals (Mammalia) follow the most current (as of November 2024) taxonomic designation by the ITIS. Organisms are compared to reference texts and identified by trained experts in the field of invertebrate taxonomy. Visual identification is used with a reference key when necessary. Scientific names are verified with ITIS. Kingdom Animalia Phylum Chordata Subphylum Vertebrata Superclass Tetrapoda Class Aves Order Charadriiformes Family Alcidae Genus Fratercula Species Fratercula cirrhata Tufted puffin No access constraints. No use constraints. We request that the suggested citation of this USGS data release be included in any publications that reference or utilize these data. 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 This work was funded by the U.S. Geological Survey (USGS), Ecosystems Mission Area, and the Landscape Conservation Cooperative (LCC) program of both USGS and the U.S. Fish and Wildlife Service (USFWS). The USFWS Alaska Maritime National Wildlife Refuge (AMNWR) and the Aleutian and Bering Sea Islands LCC also provided financial and logistic support. We are grateful to AMNWR managers Steve Delehanty, Jeff Williams, and Heather Renner for program support and for the use of data from Aiktak and Buldir, and to Captain William Pepper and crew of the R/V Tig ̂lax ̂ for outstanding research logistic support in the Aleutians. Additional advice and support was provided by Vernon Byrd, Scott Hatch, Lisa Spitler, and Bill Sydeman. We are especially grateful to those who joined us in the field work and contributed enthusiastically to our data collection: Josh Adams, Allison Anholt, Amanda Gladics, Keith Hobson, Kelli Johnson, Forrest Piatt, Barry Sampson, Jane Sullivan, and Ajay Varma. Any use of trade names is for descriptive purposes only and does not represent endorsement by the federal government. The original data is stored as CNV files and is also made available in this format for dissemination. Schoen, S.K. Piatt, J.F. Arimitsu, M.L. Heflin, B.M. Madison, E.N. Drew, G.S. Renner, M. Rojek, N.A. Douglas, D.C. DeGange, A.R. 2018 journal article Marine Biology 165:47 online Springer Nature Schoen, S.K., Piatt, J.F., Arimitsu, M.L., Heflin, B.M., Madison, E.N., Drew, G.S., Renner, M., Rojek, N.A., Douglas, D.C., DeGange, A.R., 2018. Avian predator buffers against variability in marine habitats with flexible foraging behavior. Marine Biology 164:47. https://doi.org/10.1007/s00227-018-3304-4 https://doi.org/10.1007/s00227-018-3304-4 Various tools were used in measuring the chicks - wing chord rulers for wing (mm), calipers to measure culmen (mm) and tarsus (mm), and PESOLA® to measure mass (g). NA NA All chick measurements were collected and recorded by trained biologist using wing chord rulers for wing (mm), calipers to measure culmen (mm) and tarsus (mm), and PESOLA® to measure mass (g). Data are checked against field data sheets for missing values, outliers, and inconsistencies. Data is observational, there will be missing data or NA, and some fields are not relevant or obtainable during collection. Latitude and longitude coordinates were obtained from a commercially available Garmin GPS with a resolution to within ± 4 m. FIELD: Tufted Puffin chicks were removed from burrows, and we measured their mass (g), length of wing chord (mm), culmen (mm), and tarsus (mm; Table 1). Mass was measured using PESOLA® spring scales to the nearest gram, calipers were used to measure the culmen and tarsus to the nearest millimeter, and a wing ruler was used to measure the wing chord to the nearest millimeter. The amount of effort necessary to find chicks varied greatly among colonies due to differences in burrow depth, density, substrate, and occupancy. Unknown BODY CONDITION: Chick body condition was only used for analyses if there were measurements from 12 or more chicks at a colony. We calculated an index of chick condition by dividing chick mass (g) by wing chord length (mm), averaged chick condition per colony, and then compared chick condition between ecoregions using ANOVA. Unknown Chick condition data was collected from colonies in the Aleutian Islands and Alaska Peninsula. Point 0.0001 0.0001 Decimal degrees World Geodetic System of 1984 World Geodetic System of 1984 6378137 298.257223563 TuftedPuffin_ChickBodyConditions_NorthPacific_BeringSea_2012-2014.csv Tufted Puffin chick measurements and burrow conditions. Presented in a Comma Separated Value (CSV) formatted table. Author defined Identifier Chick identification number Author defined 1 408 number island Island at which the chick was found Author defined Location name latitude latitudinal coordinate of the Tufted puffin colony Author defined 51.58818 56.7917 decimal degrees longitude longitudinal coordinate of the Tufted puffin colony Author defined -179.05253 173.94593 decimal degrees ecoregion Ecological region identified for analyses and comparison among colonies Author defined WCA Western-Central Aleutians Author defined EA Eastern Aleutians Author defined AP Alaska Peninsula Author defined date Date the chick was grubbed and measured Author defined 08/14/2012 08/16/2014 dd/mm/yyyy burrow Tufted puffin burrow ID Author defined text, field identification units wing_mm Tufted Puffin chick wing chord measurement Author defined 24 160 millimeters mass_g Tufted Puffin chick mass Author defined 75 642 grams condition_mass/wing Tufted Puffin chick condition calculated by dividing mass by wing chord measurements Author defined 1.080581 5.972222 condition culmen_mm Tufted Puffin chick culmen length Author defined 21 44 millimeters tarsus_mm Tufted Puffin chick tarsus length Author defined 20 45 millimeters entrance_sign Description of the entrance to the burrow Author defined text adult Tufted puffin adult present in the burrow Author defined Y yes Author defined N no Author defined comments Other observational comments Author defined text 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/F7TQ60GV None 20241106 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