Effect of temperature extremes on the spatial dynamics of predator?prey interactions: a case study with dragonfly nymphs and newt larvae

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F14%3A00399802" target="_blank" >RIV/68081766:_____/14:00399802 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jtherbio.2013.11.004" target="_blank" >http://dx.doi.org/10.1016/j.jtherbio.2013.11.004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jtherbio.2013.11.004" target="_blank" >10.1016/j.jtherbio.2013.11.004</a>

Result language
angličtina
Original language name
Effect of temperature extremes on the spatial dynamics of predator?prey interactions: a case study with dragonfly nymphs and newt larvae
Original language description
Theory predicts that predators are more vulnerable to increasing temperature than prey. Despite huge variations in the magnitude and duration of thermally-extreme episodes in nature, most empirical studies on predator?prey interactions consider conditions induced by a climatic shift in mean temperature. We asked whether the increased vulnerability of predators holds under daily thermal extremes occurring during heat waves, using dragonfly nymphs and newt larvae as the predator?prey model system. Directexposure of predator to prey in heated and non-heated aquaria under semi-natural conditions revealed that predator movements increased with rising temperature, whereas prey activity decreased. In contrast to the theory of predator?prey space use, the spatial co-occurrence of predator and prey individuals increased with temperature, while predation rates diminished. We conclude that daily thermal extremes affect trophic interactions in the same way, i.e. through the increased vulnerabilit
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Project
<a href="/en/project/GAP506%2F10%2F2170" target="_blank" >GAP506/10/2170: The role of predator-prey interactions in the coadaptation of thermal biology</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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