Ontogeny of vocal rhythms in harbor seal pups: an exploratory study
作者机构：Research Department Sealcentre Pieterburen Pieterburen The Netherlands Artificial Intelligenee Lab Vrije Universiteit Brussel Brussels Belgium Cognitive and Information Sciences University of California Merced CA USA Basic and Applied NeuroDynamics Lab Faculty of Psychology and Neuroscience Department of Neuropsychology & Psychopharmacology Maastricht University Maastricht The Netherlands Department of Neuropsychology Max-Planck Institute for Human Cognitive and Brain Sciences Leipzig Germany International Laboratory for Brain Music and Sound Research (BRAMS) Montreal QC Canada Department of Psychology University of Montreal Montreal QC Canada Department of Cognitive Psychology WSFiZ in Warsaw Warsaw Poland
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2019年第65卷第1期
页 面：107-120页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 0905[农学-畜牧学] 0906[农学-兽医学] 09[农学]
基 金：supported by funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska Curie the Research Foundation Flanders (FWO)(Pegasus2 Marie Curie fellowship
主 题：bioacoustics pinnipeds rhythm timing vocal development
摘 要：Puppyhood is a very active social and vocal period in a harbor seal s life Ph oca vitulina. An important feature of vocalizations is their temporal and rhythmic structure, and understanding vocal timing and rhythms in harbor seals is critical to a cross-species hypothesis in evolutionary neuroscience that links vocal learning, rhythm perception, and synchronization. This study utilized analytical techniques that may best capture rhythmic structure in pup vocalizations with the goal of examining whether (1) harbor seal pups show rhythmic structure in their calls and (2) rhythms evolve over time. Calls of 3 wild-born seal pups were recorded daily over the course of 1-3 weeks;3 temporal features were analyzed using 3 complementary techniques. We identified temporal and rhythmic structure in pup calls across different time windows. The calls of harbor seal pups exhibit some degree of temporal and rhythmic organization, which evolves over puppyhood and resembles that of other species in teractive comm un icati on. We suggest n ext steps for investigating call structure in harbor seal pups and propose comparative hypotheses to test in other pinniped species.
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