Population dynamics of Coccinella septempunctata (Coleoptera: Coccinellidae) in the region of Edremit Gulf in West Anatolia (Mount Ida)

Abstract

http://www.eje.cz June in the lowlands (Katsoyannos et al., 1997a). In Turkey, C. septempunctata is reported to spend summer and winter months diapausing on mountains (Bodenheimer, 1943; Güven et al., 2015). Several studies have shown that the durations of the aestivation and overwintering periods determine the number of generations C. septempunctata can complete each year. For instance, C. septempunctata is univoltine in Western and Central Europe (Hodek, 1959; Hagen, 1962) and bivoltine in Eastern and Southern Europe (Dyadechko, 1954). Bodenheimer (1943) assumes that the 2 nd generation of C. septempunctata is completed in autumn because it aestivates in July and August in Israel, where the mean annual temperature is very high. In this study, we aimed to determine the population changes of C. septempunctata that occur in agricultural and non-agricultural areas in the region of Edremit Gulf, where the variation in daily temperature is high, and at aestivo-hibernation sites on Mount Ida. MATERIALS AND METHODS Sampling in cultivated areas in the region of Edremit Gulf In the region of Edremit Gulf in the Aegean sea, samples were collected every 2 weeks at 10 randomly selected sites in olive orchards and other cultivated areas at altitudes between 10 and 250 m from March to September in 2009-2010. At each sampling site, C. septempunctata adults were collected using 100 sweeps