|
|
Biology of three-toed woodpecker
Navrátil, Martin ; Fuchs, Roman (advisor) ; Reif, Jiří (referee)
In my thesis I have tried to find out how does forest management influence presence of the Three-toed woodpecker Picoides tridactylus.This species is considered a "flagship species" of an untouched primeval type of forest and therefore it requires our attention and protection. The thesis contains results of North-American studies focused on the species very similar to Picoides tridactylus. The main chapters are those aimed to provide information about how is the Picoides tridactylus affected by forest fragmentation, stand health condition and finally the impact of food supply on the occurence and behaviour of the species.
|
|
|
Evaluation of forest calamites using the remote sensing data
Chrást, Josef ; Štych, Přemysl (advisor) ; Jedlička, Jan (referee)
Evaluation of forest calamities using the remote sensing data Abstract The objective of this paper is to evaluate possibilities of medium-spatial resolution satellite data assimilation for monitoring of the forest disturbances. The aim of the study is to monitore the bark beetle outbreak in the Šumava Mountains. For this purpose were used eight MERIS scenes from 2002 to 2009. Spectral response of the damaged spruce stands has been analyzed on the based of the values of selected vegetation indices (NDVI, LAI, LAI.Cab, fCover, fAPAR and three newly defined indices) and their temporal progress. The results were compared with values for healthy forests. The values of spectral indices have shown the ability of data MERIS to monitor forest disturbances at regionale scale.
|
|
|
The use of olfactory capabilities of a dog to search for bark beetle affected trees in context to preventive protection of forests
Drmla, Jakub ; Šrůtka, Petr (advisor) ; Naděžda, Naděžda (referee)
Exceptional ability to smell dog in human activity are used for several centuries. The dog is trained for tracking , searching for drugs , weapons, ammunition , human remains , tobacco and money . Usability dog is recorded in the health sector , where the dog can identify the smell serious illness. Deploying a dog to search for forest pests , especially bark beetle was experimentally tested in several European countries , but they were always used the associated odors from the environment beetle . The aim of this thesis was to design and test the methodology in practice dog is trained to search the bark in the forest and to develop and test methodology for deploying the dog directly in the forest , provided that the dog will only identify the smell of bark Beatles. The training methodology and deployment methodology dog in practice aimed to demonstrate the dog's ability to identify the presence of bark beetle in the forest and bring cost-effective form of prevention inspections forest cover within the meaning of applicable legislation. The long-term verification specially trained dog was clearly proved that the dog is very well and quickly able to identify the bark in the forest , which is most at risk. At the same time training the dog to find the bark creating an efficient instrument for the implementation of preventive examinations of forests against bark beetle infestation in accordance with applicable legislation
|
|
|
Posouzení zdravotního stavu vybraných smrkových porostů na revíru Lipina, Lesní správa Prostějov
Pospíšilová, Lucie
In the second half of the last century, a decline of secondary spruce stands emerged to an increased extent. This fact is connected with incorrect species composition of woody plants, low resistance, gradual temperature increase and rainfall decrease, increased occurrence of insects and fungal pathogens. This theses aims to objectify causes of spruce decline in the Forestry District in Prostějov, the forest Lipina, the forest stands Zadní hory, to evaluate the impact of abiotic and biotic stress factors, to outline passibilities of damage reduction and prolongation of spruce existence in unsuitable localities provided that spruce cover is transformed into mixed cover.
|
|
|
Ekonomická efektivnost způsobů odchytu kůrovců
Bauer, Jan
The bachelor thesis compares the usual capturing device for (Ips typographus L.) in terms of economic efficiency on the number of captured beetles. The topic has been studied literature, compiled a literature review to assess the first ways of trapping bark beetles, and analyze the advantages and disadvantages of different variants of capture (SWOT analysis). On the basis of analysis were selected to meet the objectives of the two most common variants of capture - tree traps and pheromone traps for which was determined by the economic efficiency of capture based on observation and investigation variant of traps in one year and by comparing the type (Ips typographus L.).
|
|
|
Economic evaluation of damages caused by bark beetle on forest stand in the district of Stribrne Hute
HEJNÁ, Jana
The aim of the thesis was to evaluate the damage caused by bark beetle on forest stand in the district of Stribne Hute which is managed by Forest Management Tabor. Forest stands are being damaged by various harmful effects which reduce theirs ecological stability. The damage is defined as a reduction of utility value or as a damage caused by adverse effects. Spruce bark beetle (Ips typographus L.) is significant part of entomocenosis and it is being considered as the most serious pest of spruce stands. Data from 2007 - 2012 were processed, it consisted of bark beetle matter production records, evaluation of timber harvest (especially random harvest) and calculation of revenues. The price lists of average values of spruce logs KH and A/B quality was used to calculate revenues from bark beetle matter and standard quality. The comparison of revenues was used to determinate the loss caused by bark beetle. Losses were minimal due to the quantity of bark beetle which did not reach state of emergency.
|
|
| |
guest ::
