Research Information System
International global climate change congress, Çanakkale, Turkey, 3 - 05 June 2021, pp.75-78
Global
climate change and increasing human population give rise to the need for food
and reveal the importance of agricultural production. Climate change can reduce
yield by increasing crop losses, particularly by affecting the distribution of
invasive pest species. Drosophila suzukii (Matsumura, 1931), also known as
spotted wing drosophid, is a polyphagous invasive species that causes great
losses in the fruit industry. Although D. suzukii was first reported in Japan, originated
from Southest Asia. The female adult lays eggs inside the fruits using its
serrated ovipositor. In the USA alone, the management cost of D. suzukii has
been reported to range from $ 129-172 million annually. The aim of this study
is to examine the effects of global climate changes on Drosophila suzukii.
Temperature is considered to be the most effective abiotic factor on insects
life traits and geographic distribution. The effects of temperature on D. suzukii
wing morphology and flight parameters were investigated. It has been
determined that high temperature negatively affects flight parameters and wing
morphology, they have higher flight speed and larger wings at lower
temperatures (16ºC). In another study, it was found that D. suzukii had a
lower survival rate from egg to adult as a result of exposure to heat stress
during development, and lifespan and fecundity decreased in survivors. While
there was no change in the form of ovipositor at lower temperatures, a visible
change in ovipositor shape was detected at higher temperatures. In addition, it
has been determined that they have longer development times at lower
temperatures, while they have larger body sizes and wider wings. D. suzukii was
first reported in strawberries in Erzurum in 2014. Later, it was
detected on strawberries in Çanakkale provinces in 2017. Global climate
change has caused invasive species such as Drosophila suzukii to increase crop
damage and spread over a wider range in worlwide. It has been stated
that the ability of D. suzukii to tolerate thermal changes is a risk factor to
its expansion to the new continental invasions.