Between 1900 and 1990 there were several periods of grain and other food shortages in Russia and the former Soviet Union, some of which reached disaster proportions resulting in mass famine and death on an unprecedented scale. New stocks of information not previously accessible as well as traditional official and other sources have been used to explore the extent to which policy and vagaries in climate conspired to affect agricultural yields. Were the leaders' (Stalin, Krushchev, Brezhnev and Gorbachev) policies sound in theory but failed in practice because of unpredictable weather? How did...

This text provides a comprehensive guide to temperate freshwater algae, with additional information on key species in relation to environmental characteristics and implications for aquatic management. It combines practical material on techniques and water quality management with basic algal taxonomy and the role of algae as bioindicators.