ArticleProceedings of the National Academy of Sciences of the United States of America2017
Sustained disruption of narwhal habitat use and behavior in the presence of Arctic killer whales.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Including Fitness and Health Proxies Can Alter Our Understanding of Habitat Selection.Ecology letters · 2026Review
- Top-Down and Bottom-Up Processes Jointly Explain Mesopredator Movement and Foraging Ecology.Ecology letters · 2026Article
- Narwhal acoustic presence in Eclipse Sound, Nunavut: relationships with sea ice and responses to ships.Scientific reports · 2025Article
- Putting the health in hidden Markov models: incorporating allostatic load indices into movement ecology analyses.Conservation physiology · 2025Article
- Influence of habitat on fine-scale space use by brown lemmings (Journal of mammalogy · 2024Article
- Stuck in a corner: Anthropogenic noise threatens narwhals in their once pristine Arctic habitat.Science advances · 2023Article
- A Review of Circumpolar Arctic Marine Mammal Health-A Call to Action in a Time of Rapid Environmental Change.Pathogens (Basel, Switzerland) · 2023Review
- Decadal migration phenology of a long-lived Arctic icon keeps pace with climate change.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Strange attractor of a narwhal (Monodon monoceros).PLoS computational biology · 2022Article
- Climate change and cetacean health: impacts and future directions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- Behavioral responses to predatory sounds predict sensitivity of cetaceans to anthropogenic noise within a soundscape of fear.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Article
- Distributions of Arctic and Northwest Atlantic killer whales inferred from oxygen isotopes.Scientific reports · 2021Article
- A marine zooplankton community vertically structured by light across diel to interannual timescales.Biology letters · 2021Article
- Assessing the post-release effects of capture, handling and placement of satellite telemetry devices on narwhalConservation physiology · 2021Article
- Killer whale presence drives bowhead whale selection for sea ice in Arctic seascapes of fear.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Killer whales redistribute white shark foraging pressure on seals.Scientific reports · 2019Article
- Human and the beast-Flight and aggressive responses of European bison to human disturbance.PloS one · 2018Article
- Juvenile Steller sea lion (Movement ecology · 2018Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although predators influence behavior of prey, analyses of electronic tracking data in marine environments rarely consider how predators affect the behavior of tracked animals. We collected an unprecedented dataset by synchronously tracking predator (killer whales, [Formula: see text] = 1; representing a family group) and prey (narwhal, [Formula: see text] = 7) via satellite telemetry in Admiralty Inlet, a large fjord in the Eastern Canadian Arctic. Analyzing the movement data with a switching-state space model and a series of mixed effects models, we show that the presence of killer whales strongly alters the behavior and distribution of narwhal. When killer whales were present (within about 100 km), narwhal moved closer to shore, where they were presumably less vulnerable. Under predation threat, narwhal movement patterns were more likely to be transiting, whereas in the absence of threat, more likely resident. Effects extended beyond discrete predatory events and persisted steadily for 10 d, the duration that killer whales remained in Admiralty Inlet. Our findings have two key consequences. First, given current reductions in sea ice and increases in Arctic killer whale sightings, killer whales have the potential to reshape Arctic marine mammal distributions and behavior. Second and of more general importance, predators have the potential to strongly affect movement behavior of tracked marine animals. Understanding predator effects may be as or more important than relating movement behavior to resource distribution or bottom-up drivers traditionally included in analyses of marine animal tracking data.
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