Costly defense in a fluctuating environment-sensitivity of annual Nothobranchius fishes to predator kairomones
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00475978" target="_blank" >RIV/68081766:_____/17:00475978 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/ece3.3019" target="_blank" >http://dx.doi.org/10.1002/ece3.3019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ece3.3019" target="_blank" >10.1002/ece3.3019</a>
Alternative languages
Result language
angličtina
Original language name
Costly defense in a fluctuating environment-sensitivity of annual Nothobranchius fishes to predator kairomones
Original language description
Antipredator strategies increase the chances of survival of prey species but are subject to trade-offs and always come at a cost, one specific category being the missed opportunity. Some animals that can modulate the timing of life-cycle events can also desynchronize this timing with the occurrence of a predator. In an unpredictable environment, such a modification may result in a mismatch with prevailing conditions, consequently leading to reproductive failure. In eastern Africa, temporary pools existing only during the rainy season are inhabited by annual fish of the genus Nothobranchius. We examined (i) the capability of multiple Nothobranchius populations and species to cease hatching when exposed to chemical cues from native fish predators and adult conspecifics and (ii) the ability of N.furzeri to modulate their growth rate in the presence of a gape-limited fish predator. As the tested Nothobranchius spp. originate from regions with extreme environmental fluctuations where the cost of a missed opportunity can be serious, we predicted an inability to cease hatching as well as lack of growth acceleration as both the predator's gape limitation and the environment select for the same adaptation. Our results showed no biologically relevant influence of kairomone on hatching and no influence on growth rate. This suggests that, in an unpredictable environment, the costs of a missed opportunity are substantial enough to prevent the evolution of some antipredator defense strategies.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
<a href="/en/project/GBP505%2F12%2FG112" target="_blank" >GBP505/12/G112: ECIP - European Centre of Ichtyoparasitology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
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
7
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
4289-4298
UT code for WoS article
000403884700021
EID of the result in the Scopus database
2-s2.0-85019012909