Evidence map›Paper›PMID 41551457›Full record

ArticlePeerJ2026

Individual and population variation in isotopic niche between two sympatric cormorant species.

Gabriela Piriz, Edwin J Niklitschek, Valentina Mansilla Gamín, Karin Maldonado

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In one paragraph

Article in PeerJ, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Gabriela PirizPrograma de Doctorado en Ciencias mención Conservación y Manejo de Recursos Naturales, Universidad de Los Lagos, Puerto Montt, Los Lagos, Chile.
Edwin J NiklitschekCentro i˜mar, Universidad de Los Lagos, Puerto Montt, Los Lagos, Chile.
Valentina Mansilla GamínCentro i˜mar, Universidad de Los Lagos, Puerto Montt, Los Lagos, Chile.
Karin MaldonadoDepartamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Chile.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coexistence among sympatric, functionally similar species often hinges on niche differentiation, especially as resource competition intensifies during the breeding season. Individual specialisation (IS) can promote coexistence by narrowing individual niches or increasing divergence among individuals. In colonial seabirds, aggregation at limited breeding sites and central-place foraging amplify both intra- and interspecific competition. Here, we assess seasonal shifts in individual and population isotopic niche widths in two sympatric cormorant species to elucidate the mechanisms underlying their coexistence. We analysed isotopic composition (

Indexed as

BirdsEcosystemSympatryAnimalsCarbon IsotopesChileNitrogen IsotopesSeasonsSpecies SpecificityCarbon IsotopesNitrogen IsotopesIndividual specialisationIsotopic nicheSeabird coexistenceSeasonal variationSympatric cormorantsTrophic ecology

Identifiers

PMID41551457
PMCPMC12805912

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.