The extensive material of skeletal remains of mammals from a diet of barn owl in the eastern Mediterranean has been processed and evaluated with different techniques of chorological and morphometric analysis. At least 8400 individuals of 45 species of insectivores, rodents and bats were found in our total collection of samples, which represents a significant portion of fauna of the region. We have evaluated a chorological composition of the taphocoenoses and the interregional differences, manifested primarily by differences in the representation of satellite and accessory elements. We found a highly significant impoverishment of the isolated island taphocenoses (Cyprus, Karpathos, partly on Crete), where Cricetidae, Arvicolidae, C. leucodon etc. are missing. On the other hand the essential part of the dominance structure takes up the Rattus rattus, which acts here as an invasive species, significantly more successful than in the ragged continental contexts. The species diversity of the examined samples is positively correlated with the geographic latitude (taphocenoses of the northern regions are significantly richer) and negatively with the island effect and the degree of aridization. The morphometric analysis of the three most abundant species of Soricidae within the studied region showed...

This diploma thesis has focused on the diversity and biogeography of Asterochloris photobionts. Since no study so far has been published on the biogeography of symbiotic microorganisms, the presented thesis is the first attemp to trace the biogeographic distribution and endemism of symbionts. By gathering 121 Asterochloris sequences obtained from lichen thalli sampled outside Europe and America, the diversity within the genus increased dramatically. The phylogenetic analysis based on the concatenated alignment of ITS rDNA and actin sequences obtained from Cladonia and Stereocaulon photobionts revealed 28 differently supported clades. Of them, eight lineages were newly discovered. Three environmental factors explaining the best the distribution pattern of Asterochloris photobionts were selected according to the statistical tests of the phylogenetic signal: two different types of biogeographical ecoregions and the substrate type. In general, the genus Asterochloris is distributed cosmopolitally, with a very low rate of endemism. Newly obtained data indicate that the restricted distribution of any photobiont clade is not caused by either historic or biological factors, but more likely by specific climatic or habitat preferences.

Landscape, language, man - a culturological study Abstract The first part of this study views some of the contributions involving landscape theme. One of them analysis water element in landscape as the symbol of the human imagination and unconsciousness. Symbols, meanings and their creating are the most important human ability; this is the typicall quality for the human kind. In opposition to culture and its network of meanings exist nature and wildness that represent primary world without artificial interferences. At the present time this primary world can be nearly experienced in forest, where no loud meanings and hypertrofic symbols disturb us. Thus forests have an important function for reanimating and purification of human culture. An interesting mention of forest aesthetics from foerster H. von Salisch shows how creative and beatiful can the forest managering or landscape managering be. Next part references to space and to relationship between a subject (man) and its space. In generally meaning we can use the term environment. Each man needs to identificate with his living environment and he also needs to understand its meaning. According to Martin Heidegger's phenomenological philosophy we use term habitation. Habitation means existence in human way - each man lives between sky and ground. Ancient...

The aim of this diploma thesis is to compare natural and human-influenced malacocenoses in the vicinity of the villages Krasíkov and Domaslav in the district of Tachov, Czech Republic. Inventory research was conducted between 2012 and 2013. A total of 36 gastropod species were found, and a total of 1088 snail shells were collected. On some of the surveyed sites (the farm Krasíkov, Domaslav, the pond near Ovčí vrch) the influence of anthropic stress is evident. Four species found during this study are also listed in the Red List of Threatened Species of the Czech Republic (Aegopinella nitidula, Balea perversa, Ena montana, Vertigo pusilla). Based on the results of the research, two variants of the didactic use of a such malacological research were created in the teaching of natural science and biology. Keywords: Mollusca, Gastropoda, malacocenosis, species diversity, ecology of mollusk assemblages, Krasíkov.

Visual assessment of discontinuities in the morphological features of diatom cells has been widely used in the discovery and delimitation of diatom species. However, a multidisciplinary approach to species-level taxonomy has revealed hidden diversity within the traditional diatom morphospecies. Consequently, this work examined both the natural and clonal populations of diatoms by diverse traditional and modern approaches, in order to assess the diversity, ecology, and distribution of diatom species. Although a detailed investigation of natural diatom samples was confounded by uncertain morphological boundaries between the traditional diatom species, it recognized that the diversity was relatively high; even one new diatom species was described using the morphological species concept. The multivariate statistical analyses showed that the variation of natural communities of traditional diatom morphospecies reflected differences in the local environmental conditions, as well as microhabitat heterogenity within a region. Since each diatom morphospecies is most likely a complex of sibling species, the two model traditional morphospecies were investigated, in order to assess morphological variation, genetic diversity, and/or the reproductive compatibility of monoclonal cultures. Even though isolated...

The occurrence of some diatoms depends on degree of pollution and water quality. Due to this attribute are diatoms used as indicators for the environmental bioassessment. But the maximum use of diatoms for this purpose is complicated by high number of species which are defined based on the ultrastructural morphological features which are indistinguishable without the electron microscope. The aims of this study were to find out the influence of environmental factors, types of habitat and geography on the structure of diatom community. And find out if richness of higher taxonomic levels is correlated with species richness, in this case if it responds with the genetic diversity within diatom species complex Frustulia crassinervia-saxonica. In this study, 49 permanent slides from natural samples were analyzed. Samples were taken from benthos of different types of freshwater habitat - lakes, dams, pools, peat bogs, stream, wet wall on diverse localities in Europe, Canada, Greenland, Chile and New Zealand. In all slides were counted 300 cells which were determined based on the morphological features on genera level. Altogether 43 benthic genera were identified. The results of this thesis showed that number of genera correlated with pH gradient but do not correlate with other environmental factors -...

Diplomová práca sa zaoberá vzťahom ubytovacích zariadení k životnému prostrediu - stanovuje kritické oblasti činností zariadení a pomáha nájsť riešenia jednotlivých problémov. Práca sleduje súčasný záujem ubytovacích zariadení o životné prostredie, charakterizuje systém enviromentálneho manažmentu a bližšie sa venuje ekoznačeniu, jeho histórii, princípom a rozšíreniu v Českej republike. Praktická časť sa sústreďuje na hodnotenie plnenia podmienok pre získanie ekoznačky Ekologicky šetrná služba/The Flower konkrétnym ubytovacím zariadeniam - mapuje súčasnú situáciu a podáva návrhy na možné zmeny v činnosti zariadenia.

This diploma thesis "Nature Travels" is divided into two parts - theoretical and practical. It deals with an issue of human nature and reacts at it from the position of author´s creativity which is based on study of philosophy. The theoretical part deals particularly with two concepts, namely nature and physis. It deals with a development of an individual and society within our environment and how it influences us. "Nature Travels" are recorded in three short videos cut from silent films. They show how we can percept nature being part of it. Simultaneously they also show which forces attack us in urban environment and distract us from the essential issues.

The pollination biology of Impatiens sakeriana was studied in Northwest province, Cameroon. The most efficient way of reproduction was examined, futhermore nectar production was neasured and bird pollinators was observed.

The estimated thesis adresses the issie of uphostery leathers, used for the manufacture of uphostered furniture, as a possible source of emissions of Voltare Organic Compounds (VOCs). In the next section is describted the methology for measuring emissions of VOCs, which emit form natural leather, used devices and equipment. The tables show the individual measurements and their evaluation, including a comparison of the potencial impacts of the technological operations of manufacturing the natural leather. An integral part of the of the thesis is to analyze the impact of individual technological operations in the production on the quality of the resulting leather. In the final part of the thesis describes and evalues the impact of natural leather in the quantitative and qualitative composition of the emissions of selected types of natural leather, including the interpretation of the results and their potential benefit for practice.