The Marsh fritillary (Euphydryas aurinia) (Lepidoptera: Nymphalidae) has declined across Europe, including the Czech Republic. Current conservation strategies rely on prevention of habitat loss and degradation, and increase in habitat quality and connectivity via promoting traditional grassland management. The population structure and adult demography parameters of a single population was investigated for eight years (single system), and of all the known Czech populations (multiple populations) for a single year, using mark-recapture. There was substantial variation in the patterns of adult demography, both among years in the single system and among the multiple populations in a single year. In the single system, the date of the first flight of an adult varied by 18 days over the 8 years and total annual numbers varied with a coefficient of variation of 0.40 (females fluctuating more than males). The average density was ca 80 adults/ha. The population size displayed density-dependence, i.e. decreased following years with high adult numbers, with an equilibrium density of 90 individuals/ha. The average density of the multiple populations was ca 120 individuals/ha. The estimated total population for the Czech Republic was 25,000 individuals (17,000 males / 8,000 females) in 2007, which does not indicate an imminent threat of extinction. The regional persistence of E. aurinia is likely to depend on re-colonisation of temporarily vacant sites by dispersing individuals, facilitated by local shifts in adult flight phenology to that better adapted to local conditions. and Kamil Zimmermann, Pavla Blazkova, Oldrich Cizek, Zdenek Fric, Vladimir Hula, Pavel Kepka, David Novotny, Irena Slamova, Martin Konvicka.
Autor rekapituluje životní a profesní dráhu docentky Lenky Kalinové, která byla dlouhou dobu přední odbornicí na sociální dějiny Československa, zejména jeho poválečného období. V šedesátých letech vytvořila a vedla výzkumný tým pro analýzu vývoje sociální struktury československé společnosti od roku 1918. V roce 1970 byla propuštěna ze zaměstnání, v dalších letech však spolupracovala s odbornými institucemi v Československu a Maďarsku a postupně také v obou zemích intenzivně publikovala. Nové možnosti se jí otevřely od počátku devadesátých let, kdy začala úzce spolupracovat s Ústavem pro soudobé dějiny Akademie věd ČR a jako výsledek své mnohaleté teoretické práce vydala dvě syntetické monografie, v nichž na bohatém faktografickém materiálu postihla základní trendy sociálně-politického vývoje české společnosti v letech 1945 až 1993., The author sums up the life and career of Lenka Kalinová (1924-2014), who was for a long time a leading authority on the social history of Czechoslovakia, particularly of the years after the Second World War. In the 1960s she established and led a team of scholars to analyse the social structure of Czechoslovakia as it had developed from 1918 onward. In 1970 she lost her job, but in the following years worked with specialized institutions in Czechoslovakia and Hungary, and eventually also published intensively in both countries. New opportunities opened up for her in the early 1990s, when she began to work closely with the Institute of Contemporary History, part of the Czech Academy of Sciences. In consequence of her years of work in the field of theory, she published two syntheses in which she made good use of a great deal of facts in order to identify and explain basic trends in Czech society and politics from 1945 to 1993., Václav Průcha., and Obsahuje bibliografii