Evidence map›Paper›PMID 33972883›Full record

ArticleRoyal Society open science2021

Population-specific sex and size variation in long-term foraging ecology of belugas and narwhals.

Marie Louis, Mikkel Skovrind, Eva Garde, Mads Peter Heide-Jørgensen, Paul Szpak, Eline D Lorenzen

Open access · goldAbstract read
In one paragraph

Article in Royal Society open science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

12 citing papers in PubMed, 38 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

6 authors at 3 institutions in 3 countries.

Marie LouisGlobe Institute, University of Copenhagen, Denmark.ORCID 0000-0002-4611-5503
Mikkel SkovrindGlobe Institute, University of Copenhagen, Denmark.ORCID 0000-0002-5430-5884
Eva GardeGreenland Institute of Natural Resources, Copenhagen, Denmark.ORCID 0000-0003-3016-5722
Mads Peter Heide-JørgensenGreenland Institute of Natural Resources, Copenhagen, Denmark.ORCID 0000-0003-4846-7622
Paul SzpakTrent University, Peterborough, Ontario, Canada.ORCID 0000-0002-1364-6834
Eline D LorenzenGlobe Institute, University of Copenhagen, Denmark.ORCID 0000-0002-6353-2819
University of Copenhagen · DKGrønlands Naturinstitut · GLTrent University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intraspecific variation in resource use by individuals of different age, sex or size may reflect differing energetic requirements and physiological constraints. Males and females often show differences in diet owing to sexual size dimorphism, different life histories and/or habitat use. Here, we investigate how sex and size influence the long-term foraging ecology of belugas and narwhals in Greenland, using stable isotopes of carbon and nitrogen from bone collagen. We show that males have a higher trophic level and a larger ecological niche than females in West Greenland belugas and in East Greenland narwhals. In addition, for these two populations, we find that

Indexed as

Arctic cetaceanscarbonnitrogenstable isotopes

Identifiers

PMID33972883
PMCPMC8074634
OpenAlexW3126601472

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.