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A knowledge of secondary school students on forests, bark beetles and bark beetle outbreaks
PAVLOVEC, Petr
PAVLOVEC, Petr. Knowledge of primary school students about forests, bark beetle and bark beetlecalamity. Bachelor thesis. Faculty of Education, University of South Bohemia in České Budějovice, Department of Biology, 2021, 63 pages. The bachelor's thesis deals with the knowledge of pupils of the 2nd grade of primary schools about forest management in Czech forests and about the nation wide problem which has currently become a bark beetlecalamity. The aim of the bachelor's thesis is to find out whether primary school pupils are sufficiently familiar with the problem of bark beetlecalamity and to assess thed ifferences in pupils' knowledge in areas with a high incidence of the issue in contrast to areas almou untouched. Pupils' information and awareness of forests and the bark beetle (Scolytinae) subfamily will be obtained through aquestionnaire. The questionnaire was distributed to pupils of chosen secondary schools.
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Monitoring of occurrence and characterization of entomopathogenic fungi naturally associated with population of spruce bark beetle \kur{Ips typographus} L. (Coleoptera, Scolytidae).
PEJSAROVÁ, Hana
The use of entomopathogenic organisms is one of the possibilities of biological plant protection, which now prefers the protection of the chemical. In the field of scientific research with an interest in these organisms in recent years has increased significantly, particularly on the grounds that their use can avoid increasing the doses of chemicals that have harmful organisms after a period of vypěstují resistance. In any ecosystem are harmful agents and their natural enemies. By the monitoring Šumava NP and PLA we wanted to demonstrate the occurrence of entomopathogenic fungi, the natural enemies of insects. Specific harmful factor for us was spruce bark beetle. Using the location of occurrence of entomopathogenic fungi were obtained strains of several species (Beauveria spp., Isaria spp., Metarhizium spp. Lecanicillium spp.), Which attempts were made, determining the entomopathogenic potential. Rating strains was carried out by setting radial growth and yield of spores of these strains of entomopathogenic fungi. Strains were transferred to the testing carried out forms alginate pellets and stored in mycology collections in the Department of crop production for the purpose of further examination. The monitoring and follow-up experiments we gained valuable information about the current incidence of fungi in the environment and also data on the assumptions for the use of integrated plant protection. For further research have been used identified fungi Beauveria bassiana strains, which, according to the findings apply to most pathogenic sponge against lýkožroutu smrkovému and its most productive strains (NP 0030, NP 0052) are currently recommended for use in the biological fight against spruce bark beetle. The remaining species found entomopathogenic fungi are the subject of further examination at the Department of Plant Production University of South Bohemia.
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Spatial correlations in population dynamics of spruce bark beetle (Ips typographus): Example of Mantel test usage
Šimera, Ondřej ; Kindlmann, Pavel (advisor) ; Ferenc, Michal (referee)
Spruce bark beetle (Ips typographus L.) is the most common and abundant beetle from the Scolytidae family in European forests. It is the most important biotic factor causing disturbances and affecting forest ecosystems. Thus, it recently became a subject of discussions, how to manage the forests properly in order to find an adequate equilibrium among economical, turistic and natural values of the forest. Many studies have shown a positive effect of bark beetle outbreaks on biodiversity and natural forest regeneration. It is hard to tell if these outbreaks are regular or not because there are many factors which can elicit them. However, just these factors can help us predict the probability of unforseen population outbreak. One of these methods can be monitoring of surrounding areas because these areas tend to be synchronised. For this purpose, multiple mathematical models can be performed, such as the Mantel test, which determines the correlation between two matrices. Keywords: Spruce bark beetle, Ips typographus, population dynamics, spatial correlations, Mantel test
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Long-term disturbance dynamics of spruce forest in High Tatra Mts.
Beranová, Jana ; Kuneš, Petr (advisor) ; Jamrichová, Eva (referee)
Spruce forest is an important production ecosystem for our civilization. Its development can be affected by three main types of disturbances: forest fire, windstorms and spruce bark beetle attack. Experiences with a massive and long-term attack of spruce bark beetle in the Šumava mountains and a strong windstorm in 2004 in the spruce forest in the High Tatra provoke questions, how natural are such severe disturbances. To understand the current development of forest ecosystems, it is necessary to study past structure of these forests and frequency of forest disturbances. This work is about locality Tatranská Lomnice located in the High Tatra mountains, in the belt of mountain spruce forest. In my work, I used mainly pollen and plant macro-fossils analyses. I compared my data with disturbance information originating from dendroecology for windstorms and from charcoal analysis for fires. My research found that according to the pollen assemblages, most of the disturbances did not have strong influence on the forest composition, and most likely they only caused the forest thinning. The most significant fire occurred around 1420. The most significant wind disturbance probably occurred in 1890. The was not found any effect of spruce bark beetle. In the past millennium disturbances affected spruce forest...
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Spatial correlations in population dynamics of spruce bark beetle (Ips typographus): Example of Mantel test usage
Šimera, Ondřej ; Kindlmann, Pavel (advisor) ; Ferenc, Michal (referee)
Spruce bark beetle (Ips typographus L.) is the most common and abundant beetle from the Scolytidae family in European forests. It is the most important biotic factor causing disturbances and affecting forest ecosystems. Thus, it recently became a subject of discussions, how to manage the forests properly in order to find an adequate equilibrium among economical, turistic and natural values of the forest. Many studies have shown a positive effect of bark beetle outbreaks on biodiversity and natural forest regeneration. It is hard to tell if these outbreaks are regular or not because there are many factors which can elicit them. However, just these factors can help us predict the probability of unforseen population outbreak. One of these methods can be monitoring of surrounding areas because these areas tend to be synchronised. For this purpose, multiple mathematical models can be performed, such as the Mantel test, which determines the correlation between two matrices. Keywords: Spruce bark beetle, Ips typographus, population dynamics, spatial correlations, Mantel test
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Effectiveness of protective measures against spruce bark beetle (\kur{Ips typographus} (L.)) at selected localities of LZ Boubín
VAČKÁŘOVÁ, Tereza
The efficiency of various protective measures against the Spruce bark beetle (pheromone-baited traps, trap trees, poisoned traps - tripods.) and the impact of insecticide-treated trap trees on non-target organisms were studied in weekly periods in areas in the altitude of 1000m above sea level. Tree traps proved to be of much higher effectivity with an average of 3307 caught spruce bark beetles in comparison with pheromone-baited traps with only 457 beetles within the same period. Poisoned traps ? tripods baited with pheromone (FeSex Typo, producer ? Karel Ubik, CR) were more effective than pheromone traps and the average number of caught beetles was 1226. Among non-target insects caught in these traps were 61 species included 7 orders. The most common species was Thanasimus formicarius.
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