National Repository of Grey Literature 18 records found  previous9 - 18  jump to record: Search took 0.01 seconds. 
Diversity of traits of aculeatan hymonopterans in habitats with finely-grained substrate
Wofková, Gabriela ; Tropek, Robert (advisor) ; Šlancarová, Jana (referee)
Natural habitats of aculeate hymenopterans are rapidly decreasing and strictly specialized species are thus going to be endangered or extinct. However, in the last decades the conservation potential of postindustrial sites has been found. There were many endangered and nationally extinct species recorded along with the drift sand specialists. However, one unclear thing remains - on postindustrial sites there were still no recordings of species that have similar biological traits to the species that are colonizing these sites. The main target of my thesis was to find traits which make it possible for the insects to colonize postindustrial sites. A matrix of 79 traits was made to describe aculeate hymenopterans biotope preferences, phenology, morphology, biogeographical area, nest, food and life history strategies. With these traits I describe 351 species systematically collected on twenty-one localities with finely - grained substrate found in Polabi and South Bohemia. These traits were tested with weighted mean abundances on type of substrate (artificial vs. sandy) with GEE analysis and the type of locality (dumping ground of coal combustion, ore and sand sludge vs. sandpits vs. natural sand) with PCoA analysis. A phylogenetic correction was incorporated in both analyzes. My results show that on...
Settling tanks and tailing ponds in topographical databases and digital cartography
Nováková, Martina ; Šára, Pavel (advisor) ; Novotná, Kateřina (referee)
SETTLING TANKS AND TAILING PONDS IN TOPOGRAPHICAL DATABASES AND DIGITAL CARTOGRAPHY Abstract The aim of bachelor thesis is to evaluate the way of classification of tailing ponds and settling tanks in topographical database ZABAGED (Czech Fundamental Base of Geographic Data). The first part introduces both phenomena themself, their division and characteristics. Next part is dedicated to detailed review of the literature regarding classification of examined features in czech and also foreign digital topographical databases. An example of representation of features in each database is included. In the practical part, thanks to obtained information, the differences of objects are explained. Furthermore, more appropriate classification of tailing ponds and settling tanks in ZABAGED database is suggested. Keywords: tailing pond, settling tank, digital topographic database, ZABAGED.
Combustion by-products of the power station of Prunéřov and options of their utilization for nature-conservation purposes
Volfová, Michaela ; Hendrychová, Markéta (advisor) ; Petr, Petr (referee)
The experiment took place in the ash deposit of power plant in the north-west Bohemia, where wasps and bees were investigated. Data were collected on localities of different management and age in May to August, 2015 by pan color traps, when 106 traps were collected (70 traps on succession areas and 36 traps on reclaimed areas). In total, 603 individuals (88 species) were determined. Thirty two species stated in the Red list, 14 species are vulnerable, six species are endangered and 2 species are critical endangered. Succession areas were strictly preferred by 39 species (90 individuals) and reclaimed areas by 12 species (18 individuals).
Industrial deposits: Are they habitats of threatened or invasive species?
Vojtíšek, Pavel ; Tonika, Jaroslav (referee) ; Kovář, Pavel (advisor)
There was made many deposits of industrial slags on our landscape during second half of 20th century. Many of deposits were abandoned without recultivation because of missing or inadequate legislation. Often very extreme habitat enables scientific research. Deposits and their surface are developing and stabilizing because of primary succession. This study works with two types of deposits: ash-slag and ore-washery sedimentation basins. During succession many plant species are introduced onto basin plateau. Ecosystem contains many unoccupied habitats and for invasive plant species it's easy to introduce into these free habitats. Contrariwise the ecosystem should pose a refuge point for ecological important plant species. In this study are worked data about total vegetational cover of vascular plants on 21 sedimentation basis (12 ash-slag and 9 ore-washery). From the data package were sorted out plants demonstrably invasive, potentially invasive and endangered plants. An occurrence of the species was compared with the type and age of sedimentation basin. Key words: Sedimentation basin, invasive plant, potentially invasive plant, endangered plant, life strategy, management
Possibilities of use brown coal settling lagoons for nature protection.
Chládek, Jiří ; Hendrychová, Markéta (advisor) ; Růžička, Jan (referee)
Six study plots of different age and management located on brown coal combustion by-products from Ledvice power plant were chosen for aculea (wasps and bees) investigation. Data were collected by Moericky pan traps from May to August 2015. In total, 283 individuals of 70 species belonging to 9 families were determined. Ten species listed in Red list (3 species critical endangered, 3 species endangered, 4 species vulnerable). Strictly on reclaimed area was preferred by 8 species (52 individuals), strictly on succession area was found 23 species (132 individuals) and in total on non reclaimed areas (succession areas + areas without vegetation) was found 62 species (231 individuals).
Across the landscape of Ostrava...
Kubinová, Michaela ; Matoušková, Petra (referee) ; Mléčka, Jan (advisor)
A human enters with his activities to the industrial landscape in the same natural way as the nature entered before, and developed them.
CLASSIFICATION OF STATEMENT OF WASTEPOND MAPE THROUGH THE USE OF THE CHOSEN MARKERS OF BACKGROUND
HULANOVÁ, Monika
The main point of the bachelor´ s writing was to analyse the stand of wastepond after the mining uranic ores. This analysis was attached by chosen indicators of the background. Little land mammals were chosen as an indicator. The samples were gained through trapping to the collapsible traps and then they were stored in the freezer. The gathered material was sent for the analysis of the chosen microelements (As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Zn). The analysis was provided by ANECLAB s.r.o. in České Budějovice. Next the problem of rescue and recultivation of watched landscape was analysed. The accomplishments of working describe the stand of the wastepond DIAMO s.p. in light of ecological stability of the formation in the landscape and the influence of recultivation on the surrounding watched biota and consequential comprehension of the areas to the landscape.
The ants of anthropogenic habitats
MACIARZOVÁ, Sandra
The first part of this thesis is a review of post-mining sites and human-made deposits and their potential as a habitat surrogate for ants. The second part consists of my own survey of two(unreclaimed and reclaimed) ash-slag sedimentation basins and two seminatural control localities near České Budějovice. Achieved aim of my study was to evaluate the effect of postindustrial areas on the composition of ant fauna.
Measure for protection of inhabitans in case of occurrence of a special flood on the selected water work of the 3rd category
JAROLÍN, Tomáš
The topic of my thesis is: {\clqq}Measure for protection of inhabitans in case of occurrence of a special flood on the selected water work of the 3rd category``. A special flood is flood caused by a defect or accident (rupture of the dam of the water work increasing the water level or accumulating water) or by emergency solution of a critical situation on the water work causing the occurrence of an extraordinary event (crisis situation) on the territory underneath the water work. For the elaboration of my thesis I selected the {\clqq}sludge bed in Hodějovice`` water work, the owner and operator of which is the Heating Plan České Budějovice a.s. (shar. Comp.). In case of occurence of a special flood, the local parts of České Budějovice, Mladé and Nové Hodějovice would be endangered. To prevent the unnecessary damage to health or even loss of life, the plan of protection for the territory underneath the water work from a special flood had to be elaborated. My task was to evaluate the sufficiency of this documentation and to supplement passibly the necessary data by the local examination and anylysis of the documents and the suggest additional protective measures.

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