Number of the records: 1

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

SYSNO ASEP	0331367
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	The ontogenetic shift in thermoregulatory behaviour of newt larvae: testing the "enemy-free temperatures" hypothesis
Title	Ontogenetická změna termoregulačního chování larev čolků: testování hypotézy "teplot prostých nepřítele"
Author(s)	Smolinský, Radovan (UBO-W)_{RID, SAI, ORCID} Gvoždík, Lumír (UBO-W)_{RID, ORCID, SAI}
Source Title	Journal of Zoology. - : Wiley - ISSN 0952-8369 Roč. 279, č. 2 (2009), s. 180-186
Number of pages	7 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	Aeshna ; fundamental thermal niche ; metamorphosis ; preferred body temperatures ; Triturus
Subject RIV	EG - Zoology
R&D Projects	GA206/06/0953 GA ČR - Czech Science Foundation (CSF)
	LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000269743600009
EID SCOPUS	70349111771
DOI	10.1111/j.1469-7998.2009.00603.x
Annotation	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 of dragonfly 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.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2010

Number of the records: 1