Evidence map›Paper›PMID 33980496›Full record

ArticleScience advances2021

Forced into an ecological corner: Round-the-clock deep foraging on small prey by elephant seals.

Taiki Adachi, Akinori Takahashi, Daniel P Costa, Patrick W Robinson, Luis A Hückstädt, Sarah H Peterson, Rachel R Holser, Roxanne S Beltran, Theresa R Keates, Yasuhiko Naito

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. The growing methodological toolkit for identifying and studying social learning and culture in non-human animals.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Large sensory volumes enable Southern elephant seals to exploit sparse deep-sea prey.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Whiskers as hydrodynamic prey sensors in foraging seals.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Key questions in marine mammal bioenergetics.Conservation physiology · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Taiki AdachiNational Institute of Polar Research, Tachikawa, Tokyo, Japan. ta51@st-andrews.ac.uk.ORCID 0000-0001-8395-4245
Akinori TakahashiNational Institute of Polar Research, Tachikawa, Tokyo, Japan.ORCID 0000-0002-9868-0408
Daniel P CostaDepartment of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0002-0233-5782
Patrick W RobinsonDepartment of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0003-3957-8347
Luis A HückstädtInstitute of Marine Sciences, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0002-2453-7350
Sarah H PetersonDepartment of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0003-2773-3901
Rachel R HolserDepartment of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0002-8668-3839
Roxanne S BeltranDepartment of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0002-8520-1105
Theresa R KeatesDepartment of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA, USA.ORCID 0000-0002-4833-323X
Yasuhiko NaitoNational Institute of Polar Research, Tachikawa, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Small mesopelagic fishes dominate the world's total fish biomass, yet their ecological importance as prey for large marine animals is poorly understood. To reveal the little-known ecosystem dynamics, we identified prey, measured feeding events, and quantified the daily energy balance of 48 deep-diving elephant seals throughout their oceanic migrations by leveraging innovative technologies: animal-borne smart accelerometers and video cameras. Seals only attained positive energy balance after feeding 1000 to 2000 times per day on small fishes, which required continuous deep diving (80 to 100% of each day). Interspecies allometry suggests that female elephant seals have exceptional diving abilities relative to their body size, enabling them to exploit a unique foraging niche on small but abundant mesopelagic fish. This unique foraging niche requires extreme round-the-clock deep diving, limiting the behavioral plasticity of elephant seals to a changing mesopelagic ecosystem.

Identifiers

PMID33980496
PMCPMC8115928

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.