Carlos B. Zavalaga20140204vector digital dataOBIS-SEAMAPLatesthttp://seamap.env.duke.edu/dataset/1102OBIS-SEAMAPhttps://doi.org/10.82144/89b7d89fVersion 1.0.0 GPS loggers and time-depth recorders were used to characterize the foraging behavior of the sexually dimorphic Peruvian booby Sula variegata on 2 islands in northern Peru. We evaluated whether (1) its foraging behavior differed from tropical boobies and temperate gannets (the Peruvian boobies feed in areas of enhanced productivity and high fish density), and (2) females and males exploited different foraging habitats as a consequence of size dimorphism. Birds foraged only during daylight hours, 1 to 3 times a day, in trips of short duration (median = 1.8 h). Overall, 92% of the total foraging time was spent flying. They fed exclusively on anchovetas Engraulis ringens, which were captured in shallow dives (median = 2.5 m, max = 8.8 m) with a dive median rate of 11 dives h–1 (max = 37 dives h–1). The median foraging range was 25 km (max = 68 km), whereas the median total distance traveled was 69 km (max = 179 km). Foraging site fidelity was high, and the orientation of foraging flights in any given day was similar among birds that departed at the same time. There were no sex-specific differences in 13 of 15 foraging variables; however, females dived slightly deeper and spent a larger proportion of time sitting on the water. We speculate that (1) the foraging behavior of Peruvian boobies contrasts with that of their tropical and temperate relatives as a result of the proximity and predictability of food sources, elevated energetic demands of the brood (up to 4 chicks) and high prey encounter rate in the Peruvian upwelling system, and (2) the lack of spatial segregation between sexes may be related to the attraction of birds to feeding aggregations that are formed in the vicinity of the colonies. Once the foraging patches are localized, females dive deeper because of passive mechanisms associated with a heavier mass.Please contact data providerDue to incorrect date/time or coordinates, the following records in the original data sheets were removed: Bird ID 507 11:15:46, 3/8/2000, -80.821548, -7.104937 11:15:49, 13/08/2019, -80.8215, -7.105124 11:15:50, 13/08/2019, -80.821498, -7.105203 11:18:07, 13/08/2019, -80.815599, -7.10751 11:18:08, 13/08/2019, -80.815574, -7.107587 16:00:11, 5/1/2018, -80.779896, -7.11839 16:58:54, 5/4/2025, -80.760566, -167.071 16:09:57, 5/4/2025, -80.75794, -7.110085 Bird ID: 509 10:18:25, 13/08/2019, -80.693316, -7.032193 10:18:26, 13/08/2019, -80.693354, -7.032029 Bird ID: 530 12:25:10, 15/08/2019, -80.844323, -7.027227 12:25:11, 15/08/2019, -80.844369, -7.0271122007121020071215ground conditionCompleteNone plannedSouthern Pacific-81.10026-80.372909-6.807573-7.526884 NoneMarine Animal SurveyMarine BiologySeabirdsAnimal taggingNoneSouthern PacificTaxon coveredMarine mammals, seabirds, sea turtlesIntegrated Taxonomic Information SystemUnknownNot applicableDownloaded April, 2004http://www.itis.usda.gov/Refer to the contact information of the datasetRefer to the contact information of the datasetmailing and physical address

Refer to the contact information of the dataset

Refer to the contact information of the datasetRefer to the contact information of the datasetRefer to the contact information of the datasetRefer to the contact information of the datasetNot providedIdentified by observers or researchers conducting the surveyKingdomAnimaliaPhylumChordataSubphylumVertebrataClassAvesFamilySulidaeGenusSulaSpeciesSula variegata Open public unless otherwise noted.1. Not to use data contained in OBIS-SEAMAP in any publication, product, or commercial application without prior written consent of the original data provider. 2. To cite both the data provider and OBIS-SEAMAP appropriately after approval of use is obtained. 3. Not 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. Carlos Zavalaga mailing and physical address unknownczav_1999@yahoo.com Carlos B. Zavalaga Relational database Zavalaga CB, Halls JN, Mori GP, Taylor SA, Dell'omo G2010vector digital dataMar Ecol Prog Ser404:259-274http://www.int-res.com/abstracts/meps/v404/p259-274/ All attributes were measured and recorded during the survey and validated by the data provider. The following birds do not have speed: 503, 505, 507, 508, 509, 519, 520, 521, 522, 523, 527, 528, 529, 530, 531, 532, 899, 900 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. Due to incorrect date/time or coordinates, the following records in the original data sheets were removed: Bird ID 507 11:15:46, 3/8/2000, -80.821548, -7.104937 11:15:49, 13/08/2019, -80.8215, -7.105124 11:15:50, 13/08/2019, -80.821498, -7.105203 11:18:07, 13/08/2019, -80.815599, -7.10751 11:18:08, 13/08/2019, -80.815574, -7.107587 16:00:11, 5/1/2018, -80.779896, -7.11839 16:58:54, 5/4/2025, -80.760566, -167.071 16:09:57, 5/4/2025, -80.75794, -7.110085 Bird ID: 509 10:18:25, 13/08/2019, -80.693316, -7.032193 10:18:26, 13/08/2019, -80.693354, -7.032029 Bird ID: 530 12:25:10, 15/08/2019, -80.844323, -7.027227 12:25:11, 15/08/2019, -80.844369, -7.027112Data were put through the OBIS-SEAMAP data registration steps.20140204Point 1e-051e-05Decimal degrees D_WGS_1984WGS_1984 6378137.000000298.257224 Biogeographic dataBiogeographic dataNot applicableoidUnique ID number (generated by OBIS-SEAMAP)Data provider1156333bird_idBird IDData providerBird IDobs_timeTime of observation in UTCData provider06:22:1418:47:32obs_dateDate of observationData provider2007-12-102007-12-15speedSpeed in km/hData provider089longitudeLongitude in decimal degreesData provider-81.1002600-80.3729090latitudeLatitude in decimal degreesData provider-7.5268840-6.8075730sp_obsSpecies name recordedData providerSpecies name recordedsp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData providerTaxonomic Serial Number added by OBIS-SEAMAPData providerobs_countNumber of animals (always 1; added by OBIS-SEAMAP)Data provider11sexSexData providerFSex FData providerMSex MData providerage_classAge (always Adult)Data providerAdultAge (always Adult) AdultData providerweightWeight in gramsData provider12001725geomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPThis section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.Carlos B. Zavalaga Nicholas School of Environment, Duke Univ. OBIS-SEAMAP mailing and physical address

A328, LSRC

DurhamNC27708USA 919-613-8021 seamap-contact@duke.edu OBIS-SEAMAP Dataset ID 1102Not 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. CSV and ESRI shapefile OBIS-SEAMAP Free Go to the OBIS-SEAMAP web site. 2014020620140206 Ei Fujioka Nicholas School, Duke Universitymailing and physical address

A328, LSRC

DurhamNC27708USA 919-613-8021 seamap-contact@duke.edu FGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time http://www.nbii.gov/Biological Data Profile