The ontogenetic shift in thermoregulatory behaviour of newt larvae: testing the "enemy-free temperatures" hypothesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F09%3A00331367" target="_blank" >RIV/68081766:_____/09:00331367 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The ontogenetic shift in thermoregulatory behaviour of newt larvae: testing the "enemy-free temperatures" hypothesis

Original language description

We examined whether the shift in preferred body temperatures (Tps) of newt larvae (Triturus alpestris) increases the Tps deviation of the most vulnerable stages from the Tps range of their main predator, dragonfly larvae (Aeshna cyanea) ? the "predator-free temperatures" hypothesis. Analyses of thermoregulatory behaviour in the laboratory thermal gradient revealed that freshly hatched newt larvae maintained lower body temperatures than larvae in later stages, whose Tps largely fell into the Tps range ofdragonfly larvae. With respect to the thermal quality of natural habitat, the anti-predator effectiveness of the Tps shift decreased during development. Water temperatures in natural habitats were located largely below the preferred body temperature range of both newt and dragonfly larvae, which limits their potential thermal niche partitioning. We conclude that other factors than predator avoidance drive the ontogenetic Tps shift in our model system.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Journal of Zoology

ISSN

0952-8369

e-ISSN

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Volume of the periodical

279

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

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UT code for WoS article

000269743600009

EID of the result in the Scopus database

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