Evidence map›Paper›PMID 32273989›Full record

ArticleEcology and evolution2020

Reductions in the dietary niche of southern sea otters (

Emma A Elliott Smith, Martin Tim Tinker, Emily L Whistler, Douglas J Kennett, René L Vellanoweth, Diane Gifford-Gonzalez, Mark G Hylkema, Seth D Newsome

Open access · goldAbstract read
In one paragraph

Article in Ecology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. A Beginner's Guide for Using Bone in Marine Mammal Research.Integrative and comparative biology · 2026
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  5. Late Pleistocene megafauna extinction leads to missing pieces of ecological space in a North American mammal community.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

8 authors at 6 institutions in 1 country.

Emma A Elliott SmithDepartment of Biology University of New Mexico Albuquerque NM USA.ORCID https://orcid.org/0000-0002-3221-0737
Martin Tim TinkerNhydra Ecological Consulting St Margaret's Bay Nova Scotia Canada.ORCID https://orcid.org/0000-0002-3314-839X
Emily L WhistlerDepartment of Anthropology Washington State University Pullman WA USA.ORCID https://orcid.org/0000-0001-9710-8525
Douglas J KennettDepartment of Anthropology University of California Santa Barbara CA USA.
René L VellanowethDepartment of Anthropology California State University Los Angeles Los Angeles CA USA.
Diane Gifford-GonzalezDepartment of Anthropology University of California Santa Cruz Santa Cruz CA USA.ORCID https://orcid.org/0000-0003-4092-3283
Mark G HylkemaCalifornia Department of Parks and Recreation Santa Cruz CA USA.
Seth D NewsomeDepartment of Biology University of New Mexico Albuquerque NM USA.ORCID https://orcid.org/0000-0002-4534-1242
University of California, Santa Cruz · USUniversity of New Mexico · USCalifornia Department of Parks and Recreation · USCalifornia State University Los Angeles · USUniversity of California, Santa Barbara · USWashington State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The sea otter (

Indexed as

amino acid stable isotope analysishistorical ecologymarine ecologymarine mammal conservationstable isotopeszooarchaeology

Identifiers

PMID32273989
PMCPMC7141068
OpenAlexW3011869268

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.