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Highly plastic resource allocation to growth and reproduction in females of an African annual fish

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00114952" target="_blank" >RIV/00216224:14310/15:00114952 - isvavai.cz</a>

  • Alternative codes found

    RIV/68081766:_____/15:00448075 RIV/00216224:14310/14:00107059

  • Result on the web

    <a href="https://doi.org/10.1111/eff.12175" target="_blank" >https://doi.org/10.1111/eff.12175</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/eff.12175" target="_blank" >10.1111/eff.12175</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Highly plastic resource allocation to growth and reproduction in females of an African annual fish

  • Original language description

    Phenotypic plasticity is an important mechanism to maximise fitness in unpredictable environments by fine-tuning phenotypes to a specific environmental setting. We used Nothobranchius furzeri, an African annual fish from temporary pools with erratic changes in habitat condition, to study changes in the allocation to growth and reproduction and to test the key trade-off between egg size and number. In an experimental setting, we quantitatively varied ration at two levels and over two time periods, including temporal switches in ration level. As predicted, female N.furzeri possessed the capacity for compensatory growth, which surprisingly came with no longer-term cost to fecundity. Females responded strongly to ration manipulation, with a pronounced decrease in fecundity associated with a low ration, even after accounting for body mass. Due to the unpredictability of offspring environment, we expected no adaptive change in oocyte size. However, females responded to the quality of their environment in accordance with an adaptive maternal effect, with females receiving a low ration producing larger eggs. Further, a switch in ration size in either direction was associated with a decrease in egg size. There was a trade-off between egg size and number in half of the treatments, but high variability in egg size among females made the relationship complex. Overall, N.furzeri females demonstrated high plasticity in both growth rate and fecundity parameters. Females appear able to track and respond adaptively to unpredictable changes in food availability in their environment.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10613 - Zoology

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Ecology of Freshwater Fish

  • ISSN

    0906-6691

  • e-ISSN

    1600-0633

  • Volume of the periodical

    24

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    13

  • Pages from-to

    616-628

  • UT code for WoS article

    000361010500013

  • EID of the result in the Scopus database

    2-s2.0-85027936676