Evidence map›Paper›PMID 34172834›Full record

ArticleCommunications biology2021

Multi-year presence of humpback whales in the Atlantic sector of the Southern Ocean but not during El Niño.

Elena Schall, Karolin Thomisch, Olaf Boebel, Gabriele Gerlach, Sari Mangia Woods, Ahmed El-Gabbas, Ilse Van Opzeeland

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

5 citing papers in PubMed, 31 citations in OpenAlex.

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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 2 countries.

Elena SchallAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany. elena.schall@awi.de.ORCID 0000-0002-7740-5466
Karolin ThomischAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
Olaf BoebelAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
Gabriele GerlachHelmholtz Institute for Functional Marine Biodiversity, Carl von Ossietzky University Oldenburg, Oldenburg, Germany.ORCID 0000-0001-5246-944X
Sari Mangia WoodsAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
Ahmed El-GabbasAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.ORCID 0000-0003-2225-088X
Ilse Van OpzeelandAlfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany.
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung · DECarl von Ossietzky Universität Oldenburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Humpback whales are thought to undertake annual migrations between their low latitude breeding grounds and high latitude feeding grounds. However, under specific conditions, humpback whales sometimes change their migratory destination or skip migration overall. Here we document the surprising persistent presence of humpback whales in the Atlantic sector of the Southern Ocean during five years (2011, 2012, 2013, 2017, and 2018) using passive acoustic data. However, in the El Niño years 2015 and 2016, humpback whales were virtually absent. Our data show that humpback whales are systematically present in the Atlantic sector of the Southern Ocean and suggest that these whales are particularly sensitive to climate oscillations which have profound effects on winds, sea ice extent, primary production, and especially krill productivity.

Indexed as

Animal MigrationEl Nino-Southern OscillationHumpback WhaleAnimalsEcologyOceans and SeasVocalization, Animal

Identifiers

PMID34172834
PMCPMC8233365
OpenAlexW3176127504

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.