Ekaterinburg
OlenevGrigoryV.Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, 202 8 Marta St., Yekaterinburg 620144, Russiaolenev@ipae.uran.ru
VershininVladimirL.Institute of Plant and Animal Ecology of Ural Branch of the Russian Academy of Sciences, 202 8th March St., Ekaterinburg 620144, Russiavol_de_mar@list.ru