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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00107059" target="_blank" >RIV/00216224:14310/14:00107059 - isvavai.cz</a>

Alternative codes found

RIV/68081766:_____/15:00448075 RIV/00216224:14310/15:00114952

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/eff.12175" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/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>

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

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10613 - Zoology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

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