Počet záznamů: 1  

Longitudinal demographic study of wild populations of African annual killifish

  1. 1.
    SYSNO ASEP0488800
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevLongitudinal demographic study of wild populations of African annual killifish
    Tvůrce(i) Vrtílek, Milan (UBO-W) RID, ORCID, SAI
    Žák, Jakub (UBO-W) RID, ORCID, SAI
    Polačik, Matej (UBO-W) RID, SAI, ORCID
    Blažek, Radim (UBO-W) RID, ORCID, SAI
    Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
    Celkový počet autorů5
    Číslo článku4774
    Zdroj.dok.Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
    Roč. 8, č. 1 (2018)
    Poč.str.12 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovaannual nothobranchius fishes ; short-lived fish ; adult sex-ratio ; life-span ; natural-populations ; senescence ; mortality ; evolution ; furzeri ; model
    Vědní obor RIVEG - Zoologie
    Obor OECDZoology
    CEPGA16-00291S GA ČR - Grantová agentura ČR
    Institucionální podporaUBO-W - RVO:68081766
    UT WOS000427684900005
    EID SCOPUS85044210928
    DOI10.1038/s41598-018-22878-6
    AnotaceThe 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.
    PracovištěÚstav biologie obratlovců
    KontaktHana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
    Rok sběru2019
Počet záznamů: 1  

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