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Important plants in terms of pollen for bee-keeping in the summer and late summer in the area of the protected landscape Šumava
PAŠKOVÁ, Dagmar
Objective of the work was to identify botanical origin of bee pollens collected from Protected Landscape area Šumava near the village of Volary and evaluate the importance of individual plant species in the diet of honey bees. The work also includes statistical analysis which examined how many subscriptions to a plant taxa occurred and what share has a certain plant taxon in the total pollen clutch. There were counted 18 different pollen taxa of bee pollens collected during summer and late summer of 2011. The work is complemented by photographs of selected pollen grains.
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Important plants in terms of pollen for bee-keeping in the spring and early summer in the northern area of the landscape Blanský les
ZÍDKOVÁ, Michaela
Bachelor work dealt with determination of important plants for bee-keeping from pollen loads and the importance of pollen in honeybee nourishment. Pollen loads were collected from one honeybee colony, which stands to the south from the village of Dobčice in Blanský les Protected Landscape Area. Natural reservations of Chrášťanský vrch and Vysoká Běta are in the distance of flying range from the colony. According to the pollen grains were detected taxons of Blanský les Protected Landscape Area?s flora in native preparates and estimated its importance from the point of view of honeybee nourishment in the stated region. The attention was given to the structure of vegetation in honeybee colony surroundings and the occurrence of important biotopes of pollen plants.
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Important plants in terms of pollen for bee-keeping in the summer and late summer aspect in the northern area of the landscape Blanský les
PETROVÁ, Jana
Objective of the work was to identify botanical origin of bee pollens collected from the northern territory of Protected Landscape Area Blanský les by pollen analysis and assess the importance of individual plant species in the diet of honey bee in the range up to 2 km from the beehive. The work also includes statistical analysis, which examined how rich is the preference of bees in the collection of bee pollens, as well as the occuring of plant taxa in the proportion of samples and what is the similarity of sampling and individual plant taxa in terms of preference of bees. There were counted 23 766 different pollen types and plant taxa of bee pollens collected during summer and late summer between 2010 and 2011. The work is complemented by photographs of selected pollen grains.
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Occurrence and prevalence of Nosema spp. in European honey bee (Apis mellifera)
ANDERLOVÁ, Jana
Nosemosis is a serious disease of bees caused by microsporidia Nosema apis and Nosema ceranae. Both species are widely spread around the world and in the Czech Republic. The aim of this thesis was to evaluate the incidence and prevalence of Nosema spp., describe the species variability and assess the influence of the season. PCR method amplifying part of the gene encoding the small ribosomal subunit rRNA was used to identify the species of Nosema spp. A total 77 samples originated from 17 farmers were examined Out of them, 71% (55 samples) were positive for the presence of Nosema spp. Samples were collected in five seasons in 2011?2012. Both N. apis, and N. ceranae were detected in all breeds. In 2011, N. apis was detected as causative agent of nosemosis except one sample, where the mixed infection was detected. In 2012, N. ceranae was observed in mono- or mixed infections. Currently monoinfections of N. apis were not detected in 2012. Generally, the highest occurrence was detected in the autumn and winter months.
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Function of honey-bee (Apis mellifera) in see industry of field crops.
PŠENIČKOVÁ, Zuzana
In this dissertation I am trying to point out the importance of the honeybee in the pollination of plants and the connection between the plant and the honeybee. The honeybee is essential and indispensable part of agricultural production that increase in the hectare production. It is also importat in forests, fields and in orchards. In the introduction there is a telling about bee colony and alternative ways of pollinate. In this dissertation I outline economic and ecological features of beekeeping and problems that beekeepers have to solve, some grants from the European Union that help to our beekeepers. In conclusion there are described some problems and different opinions for geneticaly modified plants and their influence for the honeybee.
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Carnal stratification in colony of bees
KOLÁŘ, Petr
This thesis will address gender stratification colonies. In addition, there will outline the issues concerning the origins and development of hives or internal and external environmental laws in the colony. In this work will also be mention of the relations in the colony, the division of labor and communication conditional chemicals and the number of individuals in the colony. Furthermore, there is one part of this work will be devoted to a major bee species on Earth. The aim of the work will prove that every bee has a function of sex.
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Effect of \kur{Nosema apis} and \kur{Nosema ceranae} on colonyof bees
ANDERLOVÁ, Jana
The work is aimed at assessing the influence of Nosema apis and Nosema ceranae on the hive. The literature contains only a limited degree of information about Nosema disease, which caused by both protozoa, that?s why the main aim of this work is to gather all available technical information from various sources, to compare and evaluate them. The result of evaluating the information gathered then is how this disease affects bee behavior, which has implications for breeding bees. The content of this work is first the general characteristics of Nosema apis and Nosema ceranae, their distribution, reproduction and development. A description Nosema disease, such as preventive and disinfecting measures to prezent it and how you can treat already established disease. The findings described by ptrotozoa Nosema apis imply that this protozoa is explored in the vast majority. Nosema ceranae is a recently discovered species and its research is not yet complete. Finally, the thesis summarizes the most important effects of Nosema apis and Nosema ceranae on the hive. These factors include, fluctuating number of individuals in a hive, honey yields lower, in some cases death of the colony and it also changed the behavior of honey bees.
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