Evidence map›Paper›PMID 29555942›Full record

ArticleScientific reports2018

Longitudinal demographic study of wild populations of African annual killifish.

Milan Vrtílek, Jakub Žák, Matej Polačik, Radim Blažek, Martin Reichard

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  9. Review
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  12. Alternative Animal Models of Aging Research.Frontiers in molecular biosciences · 2021
    Review
  13. Review
  14. Article
  15. Article
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  17. Review
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  19. Article
  20. eLife · 2019
    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

5 authors.

Milan VrtílekInstitute of Vertebrate Biology, The Czech Academy of Sciences, Květná 8, Brno, 603 65, Czech Republic.ORCID 0000-0002-9058-9220
Jakub ŽákInstitute of Vertebrate Biology, The Czech Academy of Sciences, Květná 8, Brno, 603 65, Czech Republic.
Matej PolačikInstitute of Vertebrate Biology, The Czech Academy of Sciences, Květná 8, Brno, 603 65, Czech Republic.
Radim BlažekInstitute of Vertebrate Biology, The Czech Academy of Sciences, Květná 8, Brno, 603 65, Czech Republic.
Martin ReichardInstitute of Vertebrate Biology, The Czech Academy of Sciences, Květná 8, Brno, 603 65, Czech Republic. reichard@ivb.cz.ORCID 0000-0002-9306-0074

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The natural history of model organisms is often overlooked despite its importance to correctly interpret the outcome of laboratory studies. Ageing is particularly understudied in natural populations. To address this gap, we present lifetime demographic data from wild populations of an annual species, the turquoise killifish, Nothobranchius furzeri, a model species in ageing research, and two other species of coexisting annual killifishes. Annual killifish hatch synchronously, have non-overlapping generations, and reproduce daily after reaching sexual maturity. Data from 13 isolated savanna pools in southern Mozambique demonstrate that the pools supporting killifish populations desiccated 1-4 months after their filling, though some pools persisted longer. Declines in population size over the season were stronger than predicted, because they exceeded the effect of steady habitat shrinking on population density that, contrary to the prediction, decreased. Populations of N. furzeri also became more female-biased with progressing season suggesting that males had lower survival. Nothobranchius community composition did not significantly vary across the season. Our data clearly demonstrate that natural populations of N. furzeri and its congeners suffer strong mortality throughout their lives, with apparent selective disappearance (condition-dependent mortality) at the individual level. This represents selective force that can shape the evolution of lifespan, and its variation across populations, beyond the effects of the gradient in habitat persistence.

Indexed as

CyprinodontiformesAnimalsEcosystemFemaleLongevityLongitudinal StudiesMalePopulation DensityPopulation DynamicsSeasonsSex RatioSympatry

Identifiers

PMID29555942
PMCPMC5859278

What OpenQuestion holds

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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.