{"pk":5434,"title":"BEHAVIORAL ASYMMETRIES OF PECTORAL FIN USE DURING SOCIAL INTERACTIONS OF BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS)","subtitle":null,"abstract":"The preference for utilizing certain appendages (handedness) has been explored in human and nonhuman primates. Similarly to primates, dolphins possess hemispheres that allow an individual to present behaviorally dominant features as well as appendages (i.e., pectoral fins) that are utilized both as social facilitators as well as means to interact with objects. Thus, the possibility of handedness in a captive population of 27 bottlenose dolphins (\nTursiops truncatus\n) was explored. Dolphins in a mother-offspring relationship made significantly more pectoral fin contacts than in the absence of this relationship (\np\n < 0.001). No significant difference was observed between maternal siblings and non-maternal siblings in overall pectoral fin contact. Handedness indexes were calculated for 26 individuals that initiated pectoral fin contact with both conspecifics and flora (i.e., seagrass) in their habitat. No significant differences were observed between the sexes in handedness indexes, however calves displayed a significant right-fin handedness compared to both sub-adults and adults (\np\n < 0.05). Both sub-adults and adults showed a left-fin handedness indexes, but no significant difference in the strength of this relationship among these two age classes was observed. Individual variation in handedness indexes was noted. These results suggest that handedness may be present in Atlantic bottlenose dolphins with regards to social contact, and a larger and more diverse sample size may provide a better understanding in why handedness may change across development.","language":"en","license":{"name":"Creative Commons Attribution 4.0","short_name":"CC BY 4.0","text":"Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\r\n\r\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.","url":"https://creativecommons.org/licenses/by/4.0"},"keywords":[{"word":"behavioral lateralization"},{"word":"handedness"},{"word":"Atlantic bottlenose dolphins"},{"word":"Tursiops truncatus"},{"word":"pectoral fin contact"}],"section":"Stan Kuczaj Tribute","is_remote":true,"remote_url":"https://escholarship.org/uc/item/8tg2z6h8","frozenauthors":[{"first_name":"Kelley","middle_name":"","last_name":"Winship","name_suffix":"","institution":"Dolphins Plus Oceanside","department":"None"},{"first_name":"Brittany","middle_name":"","last_name":"Poelma","name_suffix":"","institution":"Dolphins Plus Oceanside, University of Southern Mississippi","department":"None"},{"first_name":"Stan","middle_name":"","last_name":"Kuczaj","name_suffix":"","institution":"University of Southern Mississippi","department":"None"},{"first_name":"Holli","middle_name":"","last_name":"Eskelinen","name_suffix":"","institution":"Dolphins Plus Oceanside, Rosenstiel School of Marine and Atmospheric Science","department":"None"}],"date_submitted":"2017-01-01T00:29:39Z","date_accepted":"2017-01-01T00:29:39Z","date_published":"2017-05-02T18:13:24Z","render_galley":null,"galleys":[{"label":"","type":"","path":"https://journalpub.escholarship.org/uclapsych_ijcp/article/5434/galley/3277/download/"}]}