Spatio-temporal structure of hooded gull flocks

Makoto Yomosa, Tsuyoshi Mizuguchi, Yoshinori Hayakawa

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    We analyzed the spatio-temporal structure of hooded gull flocks with a portable stereo camera system. The 3-dimensional positions of individuals were reconstructed from pairs of videos. The motions of each individual were analyzed, and both gliding and flapping motions were quantified based on the velocity time series. We analyzed the distributions of the nearest neighbor's position in terms of coordinates based on each individual's motion. The obtained results were consistent with the aerodynamic interaction between individuals. We characterized the leader-follower relationship between individuals by a delay time to mimic the direction of a motion. A relation between the delay time and a relative position was analyzed quantitatively, which suggested the basic properties of the formation flight that maintains order in the flock.

    Original languageEnglish
    Article numbere81754
    JournalPloS one
    Volume8
    Issue number12
    DOIs
    Publication statusPublished - 2013 Dec 10

    ASJC Scopus subject areas

    • Biochemistry, Genetics and Molecular Biology(all)
    • Agricultural and Biological Sciences(all)
    • General

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