Journal
JOURNAL OF EXPERIMENTAL BIOLOGY
Volume 221, Issue 13, Pages -Publisher
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.166868
Keywords
Drosophila suzukii; Phenotypic plasticity; Flight; Wing aspect ratio; Geometric morphometrics; Wing shape
Categories
Funding
- Agence Nationale de la Recherche (ANR) SWING [ANR-16-CE02-0015]
- program Investissements d'avenir [LabEx ANR-10-LABX-0003-BCDiv, ANR-11-IDEX-0004-02]
- Museum National d'Histoire Naturelle (ATM Formes)
- Museum National d'Histoire Naturelle (Cycles de vie)
Ask authors/readers for more resources
Phenotypic plasticity has been proposed as a mechanism that facilitates the success of biological invasions. In order to test the hypothesis of an adaptive role for plasticity in invasions, particular attention should be paid to the relationship between the focal plastic trait, the environmental stimulus and the functional importance of the trait. The Drosophila wing is particularly amenable to experimental studies of phenotypic plasticity. Wing morphology is known for its plastic variation under different experimental temperatures, but this plasticity has rarely been investigated in a functional context of flight. Here, we investigate the effect of temperature on wing morphology and flight in the invasive pest species Drosophila suzukii. Although the rapid invasion of both Europe and North America was most likely facilitated by human activities, D. suzukii is also expected to disperse actively. By quantifying wing morphology and individual flight trajectories of flies raised under different temperatures, we tested whether (1) invasive populations of D. suzukii show higher phenotypic plasticity than their native counterparts, and (2) wing plasticity affects flight parameters. Developmental temperature was found to affect both wing morphology and flight parameters (in particular speed and acceleration), leaving open the possibility of an adaptive value for wing plasticity. Our results show no difference in phenotypic plasticity between invasive and native populations, rejecting a role for wing plasticity in the invasion success.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available