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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Food and host specialization in Aculeata (Hymenoptera)
 Hochová, Veronika ; Policarová, Jana (advisor) ; Černá, Kateřina (referee)
Aculeata is a group of insects, its representatives vary significantly in the use of resources which are necessary for its survival and reproduction. Herbivores which live on parts of plants, carnivores which hunt other insects and omnivores are included in this group. There are also parasitic species such as cleptoparazites, brood parasites or parasitoids classified in Aculeata. Particular groups of Aculeata are adapted to resourcing, these adaptations exist in adult and immature stages simultaneously. Adaptation to the kind of source can lead to adjustment of mouthpart for easier prey hunting or nectar collecting, corbicula and special hair intended for collecting pollen or oils, a sting used for incapacitate the host or a sting for defense. Aculeata varies to such an extent how they are specialized in food and the host. Aculeata incorporates closely specialized species together with generalized species. The known information about the specialization Aculeata on food and host is summarized in this thesis.
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Defence Expenditures in Western Countries: Panel Data Analysis
 Sosnovec, Jan ; Gregor, Martin (advisor) ; Bobková, Božena (referee)
The purpose of this thesis is to examine main determinants of military expenditures of NATO members and other Western countries. These determinants are identified and their relations with military expenditures analyzed using regression analysis on an unbalanced data panel of 30 countries during the period 1969-2011. "Military burden' - share of defense expenditures on country's GDP - is used as the explained variable. Explanatory variables include main economic indicators - GDP per capita, population, economic growth, indebtedness etc. - as well as several variables related to security (e.g. the level of threat posed by the Soviet Union) or politics (ideological orientation of the government). The question of behavior within a military alliance (contribution versus free-riding) is also taken into account. The main findings are that there are significant structural differences between major military powers - the US, France and the UK - and the rest of the Western world, and similar differences appear to exist between the Cold War and the post-Cold War periods. Furthermore some evidence is provided for the commonly held belief that smaller NATO members are essentially free-riding on the protection provided by few major powers (especially the US). Powered by TCPDF (www.tcpdf.org)
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