Female fecundity traits in wild populations of African annual fish: the role of the aridity gradient
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F16%3A00461415" target="_blank" >RIV/68081766:_____/16:00461415 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/ece3.2337" target="_blank" >http://dx.doi.org/10.1002/ece3.2337</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ece3.2337" target="_blank" >10.1002/ece3.2337</a>
Alternative languages
Result language
angličtina
Original language name
Female fecundity traits in wild populations of African annual fish: the role of the aridity gradient
Original language description
The evolution of life history is shaped by life expectancy. Life-history traits coevolve, and optimal states for particular traits are constrained by trade-offs with other life-history traits. Life histories contrast among species, but may also diverge intraspecifically, at the level of populations. We studied the evolution of female reproductive allocation strategy, using natural populations of two sympatric species of African annual fishes, Nothobranchius furzeri and Nothobranchius orthonotus. These species inhabit pools in the Mozambican savanna that are formed in the rainy season and persist for only 2–10 months. Using 207 female N. furzeri from 11 populations and 243 female N. orthonotus from 14 populations, we tested the effects of genetic background (intraspecific lineage) and life expectancy (position on the aridity gradient determining maximum duration of their temporary habitat) on female fecundity traits. First, we found that variation in female body mass was small within populations, but varied considerably among populations. Second, we found that fecundity was largely defined by female body mass and that females spawned most of their eggs in the morning. Third, we found that the trade-off between egg size and egg number varied among lineages of N. furzeri and this outcome has beennconfirmed by data from two separate years. Overall, we demonstrate that localnconditions were important determinants for Nothobranchius growth and fecunditynand that eggs size in arid region was less limited by female fecundity than in humid region.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EH - Ecology - communities
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ecology and Evolution
ISSN
2045-7758
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
5921-5931
UT code for WoS article
000381578400029
EID of the result in the Scopus database
2-s2.0-84979300805