Naslov
Differences in monoaminergic profile accompany differences in predator-induced stress behavior between mainland and island populations of lizard Podarcis siculus
(Differences in monoaminergic profile accompany differences in predator-induced stress behavior between mainland and island populations of lizard Podarcis siculus)

Autori
Hranilović, Dubravka ; Blažević, Sofia Ana ; Nikolić, Barbara ; Glogoški, Marko ; Hews, Diana ; Lisičić, Duje

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Fens Regional Meeting 2019 : book of abstracts / Isaković, Anđelka - Beograd : Serbian Neuroscience Society, 2019, 559-559

ISBN
978-86-917255-3-2

Skup
FENS Regional Meeting 2019

Mjesto i datum
Beograd, Srbija, 10.07.2019. - 13.07.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Italian wall lizard ; antipredator behavior ; noradrenaline

Sažetak
AIMS Italian wall lizard (Podarcis siculus) occupies a variety of habitats, including eastern Adriatic coast with surrounding islands, and undergoes population specific adaptations in morphology, physiology and behavior. By using mainland (ML) and island (ISL) populations of this highly adaptable lizard species, we have been investigating to what extent does different ecological context, in which two populations of the same species reside, shape adaptive behavior and affect its neurochemical make-up. METHODS In this study, in situ escape behavior was examined in 41 ML and 39 ISL adult male lizards by measuring distance at which an animal initiates flight at the approach of an observer, distance to which they flee, and time spent in a hiding place. An additional ten individuals were collected from each location and brought to laboratory where, after a period of acclimation, whole-brain concentrations of serotonin (5-HT), dopamine (DA), noradrenaline (NA) and adrenaline (ADR) were determined by ELISAs. RESULTS While ML and ISL population displayed no significant difference in flight initiation distance or in flight distance, ML lizards remained significantly longer in a hiding place. Brains from ML lizards displayed significantly higher concentrations of NA and ADR, but not of 5-HT and DA levels, compared to those of ISL lizards. CONCLUSION Our results indicate higher level of predator-induced stress in ML population, as well as higher brain concentrations of neurotransmitters mediating response to stress, suggesting that monoaminergic profile might represent one of the mechanisms through which the environment shapes adaptive behavior.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA