Strange attractor of a narwhal (Monodon monoceros)

Podolskiy, Evgeny A.; Heide-Jorgensen, Mads Peter

PLoS computational biology, 2022, 18(9), e1010432

Permalink : https://hdl.handle.net/2115/87837

このアイテムのアクセス数:317件（2026-01-24 12:17 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1371/journal.pcbi.1010432			2

アクセス権	metadata only access
URI	https://hdl.handle.net/2115/87837
タイトル	Strange attractor of a narwhal (Monodon monoceros)
著者	著者名 Podolskiy, Evgeny A.
著者	著者名 Heide-Jorgensen, Mads Peter
言語	英語
発行日	2022-09-22
出版者	PLOS
収録物名	PLoS computational biology
巻(号)	18(9)
ページ	e1010432
抄録	Detecting structures within the continuous diving behavior of marine animals is challenging, and no universal framework is available. We captured such diverse structures using chaos theory. By applying time-delay embedding to exceptionally long dive records (83 d) from the narwhal, we reconstructed the state-space portrait. Using measures of chaos, we detected a diurnal pattern and its seasonal modulation, classified data, and found how sea-ice appearance shifts time budgets. There is more near-surface rest but deeper dives at solar noon, and more intense diving during twilight and at night but to shallower depths (likely following squid); sea-ice appearance reduces rest. The introduced geometrical approach is simple to implement and potentially helpful for mapping and labeling long-term behavioral data, identifying differences between individual animals and species, and detecting perturbations.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1553-734X
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1371/journal.pcbi.1010432