|
Artificial dummies as stimuli in field mobbing experiments
SYROVÁ, Michaela
Anti-predation behaviour is usually studied using dummies ? animal is confronted with a dummy of predator. These dummies are most often stuffed, however stuffed dummies of many species are not available. Dummies made of different (artificial) materials could replace them but their surface is featherless and so is changing general view and impression of dummies. Response of red-backed shrike (Lanius collurio) to European jay?s (Garrulus glandarius) dummy made of different materials has been tested.
|
|
Track point of radar
Černohous, Josef ; Veselý, Oldřich (referee) ; Prokeš, František (advisor)
Diploma thesis concerns in the first part about current knowledge in the field of electromagnetic waves, the history, development and distribution of radar, radar antenna types and distribution of structure radars. The second part deals with the problem formulation and analysis. The third part defines the specific goals of diplomas thesis and the fourth part proposes a solution methode. Design and design selection is included in fifth part. The sixth section analyze selected variant and describes its components. Final seventh part contains design assessment of structural, technological and economic aspect.
|
|
Ecology and genetic diversity of Gentiana pannonica populations in different geographical and habitat scales
EKRTOVÁ, Ester
The thesis focused to population ecology and genetics of subalpine species Gentiana pannonica. Pollination ecology of species and generative reproduction in different habitat (primary vs. secondary) were investigated in the field. Genetic variation and structure of G. pannonica populations were studied in three disjunct parts of its distribution range: the Eastern Alps, the Bohemian Forest, and the Giant Mts. Present distribution of G. pannonica in the central past of the Bohemian Forest were processed.
|
|
Documentation of the nature reserve Miletinska bazantnice (Czech Republic)
Stejskalová, Klára ; Skalický, Milan (advisor) ; Martinková, Jaroslava (referee)
The aim of this study is to document the floristic species diversity through research in the natural reserve Miletinska bazantnice. Documentation was carried out on the territory concerned during the growing season of 2015. There was a determination of vascular species. The research was mainly focused on endangered and protected species.
The whole area is part of sites of European importance under the Habitats Directive Natura 2000 Miletinska bazantnice was declared a nature reserve in 1954 with an area of 75, 43 hectares and is part of a small-scale specially protected area. Typical features of the area are remnants of natural Podzvicinsko geobiocenosis and therefore the reason for its protection.
Further it describes the history, characteristics of the territory and the natural conditions that are typical for the locality. These include soil science, climate, hydrological, geomorphological, geological and phytogeographical. On the territory of the nature reserve are recorded two memorial trees. It´s oaks (Quercus robur) called Zizkovy duby.
At present territories were found in protected and endangered species and classified under the Red and black list of vascular plants of the Czech Republic (Grulich, 2012) and Decree of the Ministry of Environment of the Czech Republic no. 395/1992 Coll. Into the category of rare taxa that require additional attention include species such as Carex otrubae, Cerastium lucorum, Daphne mezereum, Galium boreale, Listera ovata and Primula veris. The only species Platanthera bifolia is ranked in the category of endangered under both the Red and black list of vascular plants in the Czech Republic and under Decree.
In the field survey, attention was also paid to invasive species, sorted by Catalogue of alien plants of the Czech Republic (Pyšek et al., 2012) and categorized archeophytes (Arctium tomentosum, Cirsium arvense, Convolvulus arvensis, Chelidonium majus)
and neophytes (Arrhenatherum elatius, Impatiens parviflora) and described their risks (Mlíkovský and Stýblo, 2006)
|
|
Změny ve společenstvech půdní mikroflóry a mesofauny během rozkladu listového opadu ve dvou vegetačních zónách - litter bag experiment
Jirout, Jiří ; Petrásek, Jiří ; Čápová, Lenka ; Farská, Jitka ; Jínová, Kristýna ; Rusek, Josef ; Krištůfek, Václav ; Elhottová, Dana ; Starý, Josef ; Nováková, Alena
The hypothesis, whether autochthonous species of soil biota are able to decompose litter from lower vegetation zones in higher zones, was tested by field trial. Litterbags with litter of beech (.i.Fagus sylvatica./i. L.) and/or oak (.i.Quercus robur./i. L.) were exposed in beech and spruce forest on the mountain Kleť (Protected Landscape Area Blanský les). Litterbags layout simulated vegetation zones shift to the higher altitude induced by global warming. There were used litterbags with three different mesh size (42 µm, 0,5 mm, 2 mm) for exclusion of certain parts of edaphon. Several changes of soil bacteria and micromycetes, oribatid mites, springtails and gamasid mites were studied during two years of exposition. There were exposed 480 litterbags at the start of the experiment (November 2002). After 2, 4, 6, 12, 24 months of exposition parts of all litterbags were recovered. Immediately after the sampling litter pH(KCl), moisture and mass loss were measured.
|
|
Mapování teplotního a rychlostního pole ve volném proudu horkého plynu
Gregor, Jan ; Jakubová, I. ; Mendl, T. ; Šenk, J.
In the paper the measurements on hot gas mixture free jet are analyzed. The main interest is oriented on the analysis of the distribution of the individual species in the jet based on the vector form of the continuity and momentum equation. In the continuity equation the diffusion member is involved. To simplify the problem, the temperature and velocity fields are approximated by suitable functions. The calculation process is applied on the jet generated by a hybrid water stabilized plasma torch with argon added into the chamber of a plasma heater.
|
|
The local self-government in Pardubice 1880-1914
Táborský, Ondřej ; Hlavačka, Milan (referee) ; Štaif, Jiří (advisor)
This thesis focuses on the development of the mechanism of self-government in Pardubice. The work is limited by years 1880 and 1914. The first chapter explains the political situation and demographical changes in Pardubice in the second half of the 19th century. The second chapter deals with the topic of communal elections. There have been eleven elections to the communal self-government during the tracked period. We have been able (thanks to the acquired results of the elections) to find that the electoral right has increased because of the pressure from minor political parties. Only 15% percent of inhabitants could vote the communal vestry in the prewar period because of the unfair election right. The majority of voters of the first congregation was represented by the members of the so called "honoration". The third chapter has shown the changes in the social structure of the self government of Pardubice. Comparatively stable and active component were the members of the artes liberales. The highest increase in the number of representatives was in the state bureaucracy. The fourth part focuses on the political development in the field of struggle for the directorial positions in the municipality. The fifth part deals with management of local self goverment of Pardubice and construction of the modern...
|
|
Žížaly v ekotonu pole - les
Pižl, Václav ; Zeithaml, J.
The effects of a forest-field ecotone on the density, biomass and species composition of earthworm communities were assessed. Five sites (blocks) differing in type of crop rotation used in the field were studied near Kostelec nad Černými Lesy, Czech Republic. At each block, soil samples were taken in seven parallel rows perpendicular to a transect from the oak forest to the centre of the field. Individual rows were located: in the forest (5 m from the edge), on the foresf edge, and in the field in distances of 5,10, 25, 50, 100 m from the edge of the forest. Six samples were taken in each row in spring 2001. Digging and hand sorting of soil samples, followed by formalin application was used to extract earthworms. Nine species and subspecies of earthworms were identified, among which .i.Aporrectodea caliginosa./i. predominated. Per block, the species number varied from 5 to 7.
|
|
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.
|
|
The phenomenon of motion in photography
Hižová, Katarína ; Horný, Stanislav (advisor) ; Černý, Zbyněk (referee)
The purpose of this thesis is to explore distinct techniques of capturing motion in still and animated photography. It also concentrates on describing the history, types and use of stop motion animation in the field of movie production, music, computer games and marketing communication. Practical part deals with the production process of short stop motion animations and its implementation to the communication strategy of a bachelor project called Kapustové Zelí.
|
guest ::
