ArticlePLoS computational biology2022
Strange attractor of a narwhal (Monodon monoceros).
Article in PLoS computational biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Evolutionary convergence and niche-specific regulation of core HIF1A pathway genes synergistically drive divergent hypoxia adaptation in mammals.BMC ecology and evolution · 2026Article
- Repeated narwhal interactions with moorings challenge safety assumptions of passive acoustic monitoring in the Arctic.Communications biology · 2025Article
- Acoustic monitoring reveals a diel rhythm of an arctic seabird colony (little auk, Alle alle).Communications biology · 2024Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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.
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Registered trials
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