Satellite telemetry was used to identify the foraging distributions of two congeneric species of albatrosses that nest in the tropics/subtropics. Breeding black-footed albatross (<i>Phoebastria nigripes</i>) and Laysan albatross (<i>Phoebastria immutabilis</i>) nesting in Tern Island (Northwest Hawaiian Islands) and tracked during the 1998 breeding season (January - June) performed foraging trips to continental shelves off North America. Black-footed albatross made long trips to the west coast of North America (British Columbia to California). Laysan albatross traveled primarily to the north of the Hawaiian Islands, and reached the waters of the Aleutian Islands and the Gulf of Alaska. These albatross species mixed short and long trips during the chick-rearing period (February - June), but engaged in short foraging trips during the brooding period (within 18 days after chick hatched, January - February).<br><br> In 1999, the breeding success of both albatross species was depressed, with a large-scale failure for the Laysan albatross. Out of nine black-footed albatross tracked, two chicks died during this study. Out of sixteen Laysan albatross tracked, the eggs of seven birds did not hatch and eight chicks died during the tracking study. Due to this massive breeding failure, the satellite tracked birds abandoned their colony and dispersed widely across the North Pacific Ocean. Thus, the 1998 (central-place foraging) and 1999 (dispersal from colonies) tracking data should be considered separately. The 1999 data provided information on albatross movements during a year of depressed reproductive success, when many birds abandoned the colony. An understanding on the interplay between the distribution and the reproductive success of North Pacific albatrosses has important implications for assessing how oceanographic variability influences their population dynamics.<br><br> We thank C. Alexander, L. Carsten, P. Fernández, F. Juola, P. Sievert, A. Viggiano and S. Wang for assistance in the field, and the U.S. Fish and Wildlife Service for logistical support. This research was funded by National Science Foundation grant DEB 9629539 to D. Anderson. These albatross were tracked using PTT-100 Argos transmitters (Microwave Telemetry, Columbia, MD) operating at a 90-second repetition rate and programmed to operate on a 8:24 h ON:OFF duty cycle. Transmitter bench-tests before deployment revealed that the Argos location quality classes (lcs) had the following median position errors, expressed in kilometers: lc B (8.46), lc A (3.29), lc 0 (4.80), lc 1 (1.96), lc 2 (0.49), and lc 3 (0.26).<br><br> The low-quality class B locations were discarded because they mis-represented the telemetry tracks. Thus, this dataset includes 4635 high-quality locations (lc classes A or better) with median positional errors <4 km. Anderson, D2013https://doi.org/10.82144/ab0fa19cOBIS-SEAMAP314https://seamap.env.duke.edu/dataset/314OBIS-SEAMAPvector digital dataVersion 1.0.1 ground condition 19990115 19990610 Complete None planned 140.054238.19751.25318.054140.054238.19751.25318.054Tern Island Nonealbatrosssatellite trackingNorth Pacific OceanHawaiiRadio transmittersAnimal movementsNoneTern IslandNW Hawaiian IslandsNorth Pacific OceanCalifornia Current SystemAleutiansGulf of Alaska Open public unless otherwise noted. See Use Constraints for details. 1. Not to use data obtained from OBIS-SEAMAP in any publication, product, or commercial application without proper attribution to the original data provider(s) and OBIS-SEAMAP unless the datasets are explicitly shown under the CC0 policy. Citations or credits are suggested as attribution. If the data you downloaded come from multiple datasets, a citation or credit to each of the datasets is required. Suggested citation for this dataset: Anderson, D. 2013. Tern Island Albatrosses - 1999. Version 1.0.1. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/ab0fa19c. Suggested citation for OBIS-SEAMAP: Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography 22(2):104-115 2. To forward the citation of any publication / report that made use of the data / tools provided by OBIS-SEAMAP for inclusion in our list of references. 3. Not to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. 4. The burden for determining fitness for use of the downloaded data for any analyses lies entirely with the user. OBIS-SEAMAP or the original data providers do not support outcomes of your analyses that used the data you downloaded from OBIS-SEAMAP. 5. To consider inclusion of the accompanying transect (effort) dataset if available into the methodology of your analyses. 6. Not to redistribute the data you downloaded from OBIS-SEAMAP through any media without contect from OBIS-SEAMAP and the original data providers unless the datasets are explicitly shown under the CC0 policy. Shapefile David Anderson Wake Forest University mailing and physical address

Department of Biology

Winston-Salem NC 27109 USA (336) 758-5319 da@wfu.edu National Science Foundation Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the dataset Relational databaseFernandez P., D.J. Anderson, P.R. Sievert, and K. Huyvaert2001vector digital dataJournal of Zoology254: 391-404http://wfu.edu/~djanders/labweb/reprints/Fernandez%20et%20al%202001.pdfHalpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach2009Oceanography22(2):104-115 David HyrenbachDuke University Marine Laboratorymailing and physical address

School of Aquatic and Fishery Sciences University of Washington, Box 355020

SeattleWA98195USA(206) 221-4494khyrenba@u.washington.edu http://www.nbii.gov/ Biological Data Profile 2025092920250929 All observation records are included.Permissible values for date and time and coordinates were validated by the data provider and the OBIS-SEAMAP data manager. Species identification by the data provider was matched with Integrated Taxonomic Information System.Data were put through the OBIS-SEAMAP data registration steps.20250925 OBIS-SEAMAPNicholas School of Environment, Duke Univ.mailing and physical address

A328, LSRC

DurhamNC27708USA919-613-8021seamap-contact@duke.eduNot to hold OBIS-SEAMAP liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. Also please refer to Use Constraints.FreeGo to the OBIS-SEAMAP web sitezipzipped shapefilehttp://seamap.env.duke.edu/dataset/314OBIS-SEAMAP Dataset ID 314GCS_WGS_1984Decimal degrees0.0010.001D_WGS_1984WGS_19846378137.000000298.257224Wake Forest UniversityBiogeographic dataBiogeographic dataNot applicablerecord_numberData provider14635bird_numberData provider1096081speciesSpecies name recordedData providerSpecies name recordeddayDayData provider131monthMonthData provider16yearYearData provider19991999hours_gmtHours in GMTData provider023minutes_gmtMinutes in GMTData provider059seconds_gmtSeconds in GMTData provider059argos_qualityQuality of Argos dataData providerQuality of Argos datalatitudeLatitude in decimal degreesData provider18.05400051.253000longitudeLongitude in decimal degreesData provider-179.924000179.908000geomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPoidUnique ID number (generated by OBIS-SEAMAP)Data providerUnique ID number (generated by OBIS-SEAMAP)