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Spatio-temporal structure of hooded gull flocks.


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.

SUBMITTER: Yomosa M 

PROVIDER: S-EPMC3858251 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Spatio-temporal structure of hooded gull flocks.

Yomosa Makoto M   Mizuguchi Tsuyoshi T   Hayakawa Yoshinori Y  

PloS one 20131210 12


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 aerodynam  ...[more]

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