Does developmental acclimatization reduce the susceptibility to predation in newt larvae?

0382375 - ÚBO 2013 RIV GB eng J - Článek v odborném periodiku
Smolinský, Radovan - Gvoždík, Lumír
Does developmental acclimatization reduce the susceptibility to predation in newt larvae?
Biological Journal of the Linnean Society. Roč. 108, č. 1 (2013), s. 109-115. ISSN 0024-4066. E-ISSN 1095-8312
Grant CEP: GA ČR GAP506/10/2170; GA MŠMT LC06073
Institucionální podpora: RVO:68081766
Klíčová slova: adaptive plasticity * beneficial acclimation * dragonfly nymphs * predator–prey interactions * thermal adaptation * Triturus
Kód oboru RIV: EG - Zoologie
Impakt faktor: 2.535, rok: 2013

Many organisms respond to the heterogeneity of abiotic environmental conditions by plastic modifications of their phenotypes (acclimation or acclimatization). Despite considerable research efforts in this area, the beneficial (adaptive) effect of acclimation or acclimatization is still debated. We examined whether the development of newt larvae (Ichthyosaura alpestris) under different natural light and thermal conditions subsequently altered their susceptibility to predation in sun-exposed versus shaded tanks in nature. During predation trials in various light and temperature conditions, newt larvae that developed in sun-exposed warmer tanks consistently suffered from higher predation by dragonfly nymphs (Aeshna cyanea) compared to larvae from shaded or colder tanks. We conclude that higher sun exposure during embryonic and larval development negatively affects antipredator performance even in sun-exposed tanks: this result is inconsistent with the beneficial acclimation hypothesis.
Trvalý link: http://hdl.handle.net/11104/0212608