Evidence map›Paper›PMID 30804188›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Memory and resource tracking drive blue whale migrations.

Briana Abrahms, Elliott L Hazen, Ellen O Aikens, Matthew S Savoca, Jeremy A Goldbogen, Steven J Bograd, Michael G Jacox, Ladd M Irvine, Daniel M Palacios, Bruce R Mate

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
21.3field-weighted citation impact, top 1% of its field
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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 270 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Animal culture: conservation in a changing world.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  17. Culture and conservation in baleen whales.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  18. Article
  19. Article
  20. Article

28 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Briana AbrahmsEnvironmental Research Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, Monterey, CA 93940; briana.abrahms@noaa.gov.ORCID 0000-0003-1987-5045
Elliott L HazenEnvironmental Research Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, Monterey, CA 93940.
Ellen O AikensWyoming Cooperative Fish and Wildlife Research Unit, Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071.ORCID 0000-0003-0827-3006
Matthew S SavocaHopkins Marine Station, Department of Biology, Stanford University, Pacific Grove, CA 93950.
Jeremy A GoldbogenHopkins Marine Station, Department of Biology, Stanford University, Pacific Grove, CA 93950.
Steven J BogradEnvironmental Research Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, Monterey, CA 93940.
Michael G JacoxEnvironmental Research Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, Monterey, CA 93940.
Ladd M IrvineMarine Mammal Institute, Oregon State University, Newport, OR 97365.
Daniel M PalaciosMarine Mammal Institute, Oregon State University, Newport, OR 97365.ORCID 0000-0001-7069-7913
Bruce R MateMarine Mammal Institute, Oregon State University, Newport, OR 97365.
National Oceanic and Atmospheric Administration · USOregon State University · USPacific University · USUniversity of Wyoming · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In terrestrial systems, the green wave hypothesis posits that migrating animals can enhance foraging opportunities by tracking phenological variation in high-quality forage across space (i.e., "resource waves"). To track resource waves, animals may rely on proximate cues and/or memory of long-term average phenologies. Although there is growing evidence of resource tracking in terrestrial migrants, such drivers remain unevaluated in migratory marine megafauna. Here we present a test of the green wave hypothesis in a marine system. We compare 10 years of blue whale movement data with the timing of the spring phytoplankton bloom resulting in increased prey availability in the California Current Ecosystem, allowing us to investigate resource tracking both contemporaneously (response to proximate cues) and based on climatological conditions (memory) during migrations. Blue whales closely tracked the long-term average phenology of the spring bloom, but did not track contemporaneous green-up. In addition, blue whale foraging locations were characterized by low long-term habitat variability and high long-term productivity compared with contemporaneous measurements. Results indicate that memory of long-term average conditions may have a previously underappreciated role in driving migratory movements of long-lived species in marine systems, and suggest that these animals may struggle to respond to rapid deviations from historical mean environmental conditions. Results further highlight that an ecological theory of migration is conserved across marine and terrestrial systems. Understanding the drivers of animal migration is critical for assessing how environmental changes will affect highly mobile fauna at a global scale.

Indexed as

Animal MigrationAnimalsBalaenopteraCaliforniaEcosystemMemoryMovementmarine megafaunamigrationmovement ecologyresource wavespatial memory

Identifiers

PMID30804188
PMCPMC6431148
OpenAlexW2916590402

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.