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Navážka substrátu a inokulace stonožek (Chilopoda) na výsypky po těžbě hnědého uhlí
Voženílková-Aurová, Klára
Piles of upper soil taken from non-disturbed surroundings of the mine were deposited on the spoil heap area denuded by soil slide to accelerate succession and development of soil fauna on colliery spoil heaps. Development of soil fauna was investigated as from May 1995 till May 1998. Epigeic activity of centipedes was monitored by the method of long term pitfall trapping on the tops of the piles, between piles and on the soil slide in the distance of 50 m from the piles (control plot). The development of the centipede assemblage on the piles was similar to that on the reclaimed spoil heaps. .i.Lamyctes emarginatus./i., known as a pioneer species in young successive stage of the heaps, predominated at the beginning of the experiment. Later on, the numbers of .i.Lamyctes emarginatus./i. decreased because of increasing activity of other centipede species, especially .i.Lithobius microps./i..
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Contribution to the changes and evaluation of vegetation on landslides and to the problematic of their phytoindication
Lacina, Jan
Relationships between landslides and vegetation cover were studied in Moravian part of Western Carpathian Mountains on selected plots which were affected by landslides evoked by extreme floods in July 1997. It was founded that landslides rises under various vegetation formation – forestal and non-forestal as well. Landslides change ecological conditions for vegetation markedly. A number of species are bounded to landslides, e.g. Equisetum telmateia, which is possible to identify like landslides guides, don’t like phytoindicators.
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Vývoj půdní fauny na loukách obnovených na orné půdě: Iniciální fáze sukcesního vývoje
Tajovský, Karel ; Pižl, Václav ; Starý, Josef ; Balík, Vladimír ; Frouz, Jan ; Schlaghamerský, J. ; Háněl, Ladislav ; Rusek, Josef ; Kalčík, Jiří
The development of soil fauna assemblages (testate amoebae, nematodes, enchytraeids, earthworms, terrestrial isopods, millipedes, centipedes, collembolans, dipteran larvae) has been investigated in a -field experiment since autumn 1999. Four types of treatment were studied in plots previously managed as arable land: 1) sowing with a native seed mixture, 2) sowing of a 5 m wide central strip with native and the lateral strips with commercial seed mixture, 3) sowing of a 5 m wide central strip with native seed mixture, leaving the lateral strips to spontaneous succession, and 4) leaving to spontaneous succession (abandoned field). The observed increase of qualitative and quantitative parameters of the individual soil animal groups corresponded to the initial phase of successional development. Eurytopic and euryvalent representatives as well as epigeic species of soil micro-, meso- and macrofauna prevailed in the studied treatments during the first years of observation.
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Short-term effects of grass mixtures on nematodes inhabiting agricultural soil in the Bílé Karpaty Mts., Czech Republic - a preliminary study
Háněl, Ladislav
Short-term changes of nematode assemblages were studied in field soil sown with regional and commercial grass mixtures and compared with those in a cultivated field in the course of one year. Total average abundance of nematodes in the grass mixture plots increased rapidly to 1308-2075 x 10 3 ind.m.-2 whereas in the field it remained relatively low (625 x 10 3 ind.m-2). The increase in population densities mainly concerned microbivores such as Panagrolaimus, Paraphelenchus, Aphelenchus and Aphelenchoides (950-1779 x 10 3 ind. m-2) followed by omnivores + predators (178-296 x 10 3 ind.m-2), while increase in plant parasite populations was slower (105-140 x 10 3 ind. m-2). The development of nematode assemblages suggests a great role of accumulation of above-ground as well as below-ground litter supporting microflora and microbial feeding fauna in initial stages of meadow restoration. In older stages, an increase of root density is expected simultaneously with multiplication of plant parasitic nematodes. Early successional development of soil nematode assemblages seemed to be faster in plots sown with regional grass mixture than in that sown with commercial grass mixture.
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Family business
Prchalová, Lenka ; Svobodová, Ivana (advisor) ; Janů, Petra (referee)
The thesis deals with the phenomenon of "Family business". The first part involves theory aimed at the global importance of family businesses, their specifics, definition, strong and weak sides and potential difficulties. The process of succession and its strategy is described in more detailed way enabling future success of family businesses. The second part shows analyses of Czech family companies. There is a comparison with German family companies which might serve for some improvement of the Czech family entrepreneurs. At the end of this thesis, there are three case studies of three Czech family companies. On the basis of their analysis is provided a recommendation of potential solutions of their problematic areas.
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Family Enterprising in a Chosen Region
Volšický, Pavel ; Hesková, Marie (advisor)
The theoretical-methodological part of the thesis describes family enterprising. It also deals with the definition of family enterprises, focuses on problems that these firms have to face and it also outlines a history of family enterprising. Finally, the thesis evaluates prospects of family enterprising in the Czech Republic. In its practical part, the thesis introduces SACH Company, makes an analysis of its external environment and formulates the concept of a further development of this enterprise. In conclusion, the thesis summarizes problems of this firm and outlines a possible strategy for the enterprise into the future.
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