Evidence map›Paper›PMID 32382054›Full record

ArticleScientific reports2020

Timing is everything: Drivers of interannual variability in blue whale migration.

Angela R Szesciorka, Lisa T Ballance, Ana Širović, Ally Rice, Mark D Ohman, John A Hildebrand, Peter J S Franks

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
8.0field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 79 citations in OpenAlex.

  1. Article
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  8. Insights into Blue Whale (Animals : an open access journal from MDPI · 2024
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  14. 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 · 2022
    Article
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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

7 authors at 2 institutions in 1 country.

Angela R SzesciorkaScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US. angela@szesciorka.com.
Lisa T BallanceScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US.
Ana ŠirovićTexas A&M University at Galveston, 200 Seawolf Parkway, Galveston, TX, 77554, US.
Ally RiceScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US.
Mark D OhmanScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US.
John A HildebrandScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US.
Peter J S FranksScripps Institution of Oceanography, UC San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, US.
University of California, San Diego · USTexas A&M University at Galveston · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Blue whales need to time their migration from their breeding grounds to their feeding grounds to avoid missing peak prey abundances, but the cues they use for this are unknown. We examine migration timing (inferred from the local onset and cessation of blue whale calls recorded on seafloor-mounted hydrophones), environmental conditions (e.g., sea surface temperature anomalies and chlorophyll a), and prey (spring krill biomass from annual net tow surveys) during a 10 year period (2008-2017) in waters of the Southern California Region where blue whales feed in the summer. Colder sea surface temperature anomalies the previous season were correlated with greater krill biomass the following year, and earlier arrival by blue whales. Our results demonstrate a plastic response of blue whales to interannual variability and the importance of krill as a driving force behind migration timing. A decadal-scale increase in temperature due to climate change has led to blue whales extending their overall time in Southern California. By the end of our 10-year study, whales were arriving at the feeding grounds more than one month earlier, while their departure date did not change. Conservation strategies will need to account for increased anthropogenic threats resulting from longer times at the feeding grounds.

Indexed as

Oceans and SeasAnimal MigrationAnimalsBalaenopteraBiomassCaliforniaClimate ChangeEuphausiaceaFeeding BehaviorHumansSeasonsTemperature

Identifiers

PMID32382054
PMCPMC7206123
OpenAlexW3023447372

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.