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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP506%2F10%2F2170" target="_blank" >GAP506/10/2170: Úloha interakcí predátor-kořist v koadaptaci termální biologie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Biology

ISSN

0306-4565

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

12-16

Kód UT WoS článku

000331489000003

EID výsledku v databázi Scopus

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