Evidence map›Paper›PMID 35302678›Full record

ArticleGlobal change biology2022

Changes in sea ice and range expansion of sperm whales in the eclipse sound region of Baffin Bay, Canada.

Natalie Posdaljian, Caroline Soderstjerna, Joshua M Jones, Alba Solsona-Berga, John A Hildebrand, Kristin Westdal, Alex Ootoowak, Simone Baumann-Pickering

Abstract read
In one paragraph

Article in Global change biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Female, juvenile, and calf sperm whaleEcology and evolution · 2024
    Article
  2. 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

8 authors.

Natalie PosdaljianUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.ORCID 0000-0003-0777-0887
Caroline SoderstjernaUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.
Joshua M JonesUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.ORCID 0000-0002-1033-5563
Alba Solsona-BergaUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.ORCID 0000-0003-4096-742X
John A HildebrandUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.ORCID 0000-0002-5418-9799
Kristin WestdalOceans North, Winnipeg, Manitoba, Canada.ORCID 0000-0001-6313-2009
Alex OotoowakOceans North, Winnipeg, Manitoba, Canada.
Simone Baumann-PickeringUniversity of California San Diego, Scripps Institution of Oceanography, La Jolla, California, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sperm whales (Physeter macrocephalus) are a cosmopolitan species but are only found in ice-free regions of the ocean. It is unknown how their distribution might change in regions undergoing rapid loss of sea ice and ocean warming like Baffin Bay in the eastern Canadian Arctic. In 2014 and 2018, sperm whales were sighted near Eclipse Sound, Baffin Bay: the first recorded uses of this region by sperm whales. In this study, we investigate the spatiotemporal distribution of sperm whales near Eclipse Sound using visual and acoustic data. We combine several published open-source, data sets to create a map of historical sperm whale presence in the region. We use passive acoustic data from two recording sites between 2015 and 2019 to investigate more recent presence in the region. We also analyze regional trends in sea ice concentration (SIC) dating back to 1901 and relate acoustic presence of sperm whales to the mean SIC near the recording sites. We found no records of sperm whale sightings near Eclipse Sound outside of the 2014/2018 observations. Our acoustic data told a different story, with sperm whales recorded yearly from 2015 to 2019 with presence in the late summer and fall months. Sperm whale acoustic presence increased over the 5-year study duration and was closely related to the minimum SIC each year. Sperm whales, like other cetaceans, are ecosystem sentinels, or indicators of ecosystem change. Increasing number of days with sperm whale presence in the Eclipse Sound region could indicate range expansion of sperm whales as a result of changes in sea ice. Monitoring climate change-induced range expansion in this region is important to understand how increasing presence of a top-predator might impact the Arctic food web.

Indexed as

Ice CoverSperm WhaleAnimalsBaysCanadaEcosystembioacousticsCanadian Arcticclimate changemarine mammalssea icesperm whales

Identifiers

PMID35302678
PMCPMC9324104

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Registered trials

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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.