{"datasetrec":{"DasID":4816,"Acronym":null,"StandardTitle":"Movement patterns of Peruvian Boobies off Isla Lobos de Afuera 2007","OrigTitle":null,"OrigTitleLangID":null,"OrigTitleLangCode":null,"OrigTitleLang":null,"OrigTitleLangNL":null,"VersionName":null,"ContactEmail":null,"VersionDate":null,"VersionDay":null,"VersionMonth":null,"VersionYear":null,"SizeReference":null,"EngAbstract":"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.","EngDescr":"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\r\nhigh 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.","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":"<a href='http://www.int-res.com/abstracts/meps/v404/p259-274/' target='reference'>Zavalaga CB, Halls JN, Mori GP, Taylor SA, Dell'omo G. 2010. At-sea movement patterns and diving behavior of Peruvian boobies Sula variegata in northern Peru. Mar Ecol Prog Ser. 404:259-274</a>","AccessConstraints":"Only data aggregated per 1-degree cell are available through OBIS. The non-aggregated data are available through the OBIS-SEAMAP Portal","UDate":"2015-03-19","CDate":"2015-03-19","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-30 01:37:59.451226","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field survey","Progress":"Completed","AccessConstraint":"Attribution (CC BY)","AccConstrEN":"Attribution (CC BY)","AccConstrDisplay":"<a rel=\"license\" href=\"https://creativecommons.org/licenses/by/4.0/\" target=\"_blank\"><img alt=\"Creative Commons License\" style=\"border:0px;height:15px;width:80px;vertical-align:middle;\" src=\"https://www.marinespecies.org/aphia/images/cc/by.png\" /></a> This dataset is licensed under a <a rel=\"license\" href=\"https://creativecommons.org/licenses/by/4.0/\" target=\"_blank\">Creative Commons Attribution 4.0 International License</a>.","License":"https://creativecommons.org/licenses/by/4.0/","AccConstrDescription":"This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.","Lineage":null,"AccConID":21},"dois":null,"spcols":null,"keywords":[{"ThesaurusTerm":"Peru","ThesTypID":34,"ThesType":"ASFA Geoterms","Code":null,"Description":null,"OrigThesTerm":"Peru","DutchTerm":null,"URI":null,"DasKeywordDescr":null}],"parents":null,"children":null,"othrel":null,"othrelrev":[{"DasID":1865,"Acronym":"OBIS-SEAMAP","StandardTitle":"Spatial Ecological Analysis of Megavertebrate Populations","Relation":"Published dataset","RelationY":"Published in","RelID":13,"doi":null,"vlizDoi":null}],"ownerships":[{"OrderNr":1,"Surname":"Zavalaga","Firstname":"Carlos","Initials":"C.","PerPublicFlag":1,"AdrID":157869,"Email":"czav_1999@yahoo.com","InsPublicFlag":1,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":1,"PersID":31115,"InsID":13461,"FullInstitute":"Universidad Científica del Sur","RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":"Universidad Científica del Sur","FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":2,"Surname":null,"Firstname":null,"Initials":null,"PerPublicFlag":null,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":2,"PersID":null,"InsID":5867,"FullInstitute":"Duke University; Nicholas School of the Environment and Earth Sciences; Marine Laboratory","RoleID":24,"Role":"Contact","OrigName":null,"StandardName":"Marine Laboratory","FullAcronym":null,"ORC":null,"ROR":null}],"taxterms":[{"DasTaxtTypID":1,"DasTaxtType":"Taxonomic coverage","TaxtID":19079,"TaxTerm":"Sulidae","AphiaID":136994,"DutchTerm":"genten"}],"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":3645,"StartYear":2007,"EndYear":2007,"StartDay":10,"EndDay":15,"StartDate":"2007-12-10","EndDate":"2007-12-15","DasDate":null,"Resolution":null,"ResolutionNL":null,"Notes":null,"StartMonth0":12,"StartMonth":"December","StartMonthNL":"December","EndMonth0":12,"EndMonth":"December","EndMonthNL":"December","Progress":"Completed","ProgressNL":"Afgelopen"}],"geographical":[{"GeoTerm":"Peruvian Exclusive Economic Zone","DasGeoID":7415,"DasGeoTerm":null,"DasID":4816,"GeotID":3077,"X":null,"Y":null,"MaxX":null,"MaxY":null,"StationName":null,"Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":null,"OrigCoordMinY":null,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":8432,"OrigGeoTerm":"Peruvian Exclusive Economic Zone","DutchTerm":null}],"meastypes":[{"MethID":null,"DasMeasTypID":9436,"DasMeasType":"","Matrix":null,"MatrixNL":null,"Parameter":"Occurrence of biota","ParameterNL":"Voorkomen van soorten","Description":null,"Unit":null,"Methodology":null,"Protocol":null,"QualityControl":null,"Precision":null,"Detectionlimit":null,"Instrument":null,"InstrumentUrl":null,"MethFull":"","ParaCategoryTitle":null,"ParaCatCode":null}],"dasthemes":[{"DasThemeID":69,"DasTheme":"Biology > Birds","DasTheme0":"Birds","DutchTerm":"Vogels"}],"projects":null,"refs":[{"0":248483,"BRefID":248483,"1":"Based on this dataset","Relation":"Based on this dataset","2":2,"RelationID":2,"3":"<b>Zavalaga, C.B. <i>et al.</i></b> (2010). At-sea movement patterns and diving behavior of Peruvian boobies <i>Sula variegata</i> in northern Peru. <i>Mar. Ecol. Prog. Ser. 404</i>: 259-274. <a href=\"http://dx.doi.org/10.3354/meps08490\" target=\"_blank\">http://dx.doi.org/10.3354/meps08490</a>","RR":"<b>Zavalaga, C.B. <i>et al.</i></b> (2010). At-sea movement patterns and diving behavior of Peruvian boobies <i>Sula variegata</i> in northern Peru. <i>Mar. Ecol. Prog. Ser. 404</i>: 259-274. <a href=\"http://dx.doi.org/10.3354/meps08490\" target=\"_blank\">http://dx.doi.org/10.3354/meps08490</a>","4":"At-sea movement patterns and diving behavior of Peruvian boobies <i>Sula variegata</i> in northern Peru","StT":"At-sea movement patterns and diving behavior of Peruvian boobies <i>Sula variegata</i> in northern Peru","5":"Zavalaga, C.B.; Halls, J.N.; Taylor, S.A.; Dell'Omo, G.","RSA":"Zavalaga, C.B.; Halls, J.N.; Taylor, S.A.; Dell'Omo, G.","6":"Gebaseerd op deze dataset","DutchTerm":"Gebaseerd op deze dataset","7":2010,"AnaDate":2010,"8":null,"MonDate":null,"9":". <i>Mar. Ecol. Prog. Ser. 404</i>: 259-274. <a href=\"http://dx.doi.org/10.3354/meps08490\" target=\"_blank\">http://dx.doi.org/10.3354/meps08490</a>","":". <i>Mar. Ecol. Prog. Ser. 404</i>: 259-274. <a href=\"http://dx.doi.org/10.3354/meps08490\" target=\"_blank\">http://dx.doi.org/10.3354/meps08490</a>","10":"http://dx.doi.org/10.3354/meps08490","doi":"http://dx.doi.org/10.3354/meps08490"}],"urls":[{"URL":"http://ipt.env.duke.edu/resource.do?r=zd_1102_1deg","externalID":"zd_1102_1deg","URLTypeCode":null,"URLType":"IPT","URLTypID":33,"downloadURL":null,"FileName":null},{"URL":"https://obis.org/dataset/fdfb28c7-6bcd-4fc0-979a-e3d6a761dc38","externalID":"fdfb28c7-6bcd-4fc0-979a-e3d6a761dc38","URLTypeCode":null,"URLType":"Online dataset","URLTypID":19,"downloadURL":null,"FileName":null},{"URL":"https://seamap.env.duke.edu/dataset/1102","externalID":"1102","URLTypeCode":null,"URLType":"Online dataset","URLTypID":19,"downloadURL":null,"FileName":null}],"pictures":null,"urlmaps":null,"spatreps":null,"fileformats":null,"resmessage":"","complete":1}