The Novel Concept of “Behavioural Instability” and Its Potential Applications

Symmetry

Zorana Kurbalija Novicic¹  Palle Duun Rohde²  Simon Bahrndorff³  Cino Pertoldi³ 

[1] Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology Center, Uppsala University, Norbyvägen 18D, SE-752 36 Uppsala, Sweden;Center for Quantitative Genetics and Genomics, Department of Molecular Biology and Genetics, Aarhus University, Tjele 8830, Denmark;Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, Aalborg DK-9000, Denmark;

关键词: fluctuating asymmetry;    scaling effect;    Drosophila melanogaster;   

DOI  :  10.3390/sym8110135

来源: DOAJ

【 摘 要 】

The concept of developmental instability (DI) is a well-known indicator of environmental and genetic stress and is often investigated using various indices such as fluctuating asymmetry, directional asymmetry, antisymmetry and phenotypic variance. Investigations dealing with DI are using morphometric traits. The aim of this investigation is to present the novel concept of behavioural instability in which the trait measured is a behavioural trait. We apply the conventional indices used for the estimation of developmental instability on directional movement—clockwise (CW) and counter-clockwise (CCW) movement of 19 highly inbred lines of Drosophila melanogaster tested in a circular arena. We show that it is possible to quantify behavioural instability using the indices traditionally used to investigate DI. Results revealed several significant differences among lines, depending on the index utilized. The perspectives of utilizing the concept in biological research such as toxicology, evolutionary and stress biology are discussed.

【 授权许可】

Unknown