1. Dipartimento di Scienze Ambientali, Sezione di Sistematica ed Ecologia animale e vegetale, Università di Siena, Via P. A. Mattioli 4, IT‐53100 Siena, Italy
2. Institute for Ecological and Evolutionary Problems ‘A. N. Severtsova’, Russian Academy of Sciences, Leninskij Prosp. 33, Moscow B‐71, Russia, 117071
3. Laboratory of Photobiology, Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk‐36, Russia, 660036