“…On the contrary, for other species such as the toad Bombina bombina (Szymura et al, 2000), the newt Triturus sp. (Taberlet et al, 1998), the grasshopper Chorthippus parallelus (Hewitt, 1999), and the woodmouse A. sylvaticus (Michaux et al, 2003), the Turkish populations seem to be closely related to the Balkans ones suggesting a recent separation or frequent gene flow between these populations, probably during the Quaternary ice ages when the Marmara Sea was replaced by dry lands (Tzedakis et al, 1997). Therefore, why did the Oriental populations of A. flavicollis not colonise the Balkan regions during these periods?…”