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Importance of forest continuity and fragmentation according to beetles as an indicating taxonomic group
Loskotová, Tereza ; Romportl, Dušan (advisor) ; Treml, Václav (referee)
Importance of forest continuity and fragmentation according to beetles as an indicating taxonomic group Abstract Old-growth forests can provide suitable habitats for certain organisms which can't live in another type of environment. These organisms can be used as bioindicators of old-growth forests. Spatial organization of forests affects spatial distribution and population abundance of these organisms. Fragmentation process can negatively influence populations of forest organisms. In particular, the aim of this work was to locate areas with forest continuity within the area of interest and to characterize their spatial arrangement. Long-term continuity of forests was identified using historical maps. Spatial distribution of forests is not equal. In the northern and north-eastern part of the area, there is a large forest complex while in the southern and south-western part of the area, there is lot of forest fragments with surrounding of agriculture fields. Next target was to select beetle group with potential bioindicators of forest continuity. Many beetle species live in forests and the group fulfills requirements for indicating groups. Saproxylic beetles were chosen as a crucial group for a subsequent study. Keywords: continuity, fragmentation, indicator, landscape structure, beetles
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Teen - agers using addictive substance - case study
Loskotová, Tereza ; Mašát, Vladimír (advisor) ; Urban, David (referee)
Bachelor thesis is tries to capture the importance of prevention and therapy teen-agers drug users. The theoretical part is about drug like a substance and their prevention or risks. All theoretical part is chosen pursuant on the practical part. In the practical part we can find the specific example of one chicks drug user. There we can also found the comparison of theo-retical and practical part we will see here if all were done correctly or with mistake. The aim of this thesis is to try to point out the theory and practice of the pros and cons of the system of care for young people addicted to drugs.
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The importance of the forest continuity and fragmentation as a variable determining the diversity of beetles
Loskotová, Tereza ; Romportl, Dušan (advisor) ; Treml, Václav (referee)
Presented thesis examines the influence of two frequently discussed variables, forest continuity and forest fragmentation, on beetle diversity. An area of managed forests near Choceň was assessed. Longterm presence of local forest cover (minimum 240 years) can be documented by historical maps. Oak woodlands corresponding to the potencial vegetation were considered as continuous when older than 100 years. Those areas were compared with spruce forest. Fragmentation is understood to be a result of a conversion of species composition since 18th century until present. Other ecological and forest structural variables with possible influence on beetle populations were included. Out of the 38 completely described families of beetles were chosen into account. One defined taxonomically is represented by click-beetles (Elateridae) and the other group, saproxylic beetles, is defined by ecology. Their responses to variables of forest continuity and forest fragmentation were compared. Keywords: forest continuity, fragmentation, flight-intercept traps, biodiversity, saproxylic, beetles, Elateridae
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Importance of forest continuity and fragmentation according to beetles as an indicating taxonomic group
Loskotová, Tereza ; Treml, Václav (referee) ; Romportl, Dušan (advisor)
Importance of forest continuity and fragmentation according to beetles as an indicating taxonomic group Abstract Old-growth forests can provide suitable habitats for certain organisms which can't live in another type of environment. These organisms can be used as bioindicators of old-growth forests. Spatial organization of forests affects spatial distribution and population abundance of these organisms. Fragmentation process can negatively influence populations of forest organisms. In particular, the aim of this work was to locate areas with forest continuity within the area of interest and to characterize their spatial arrangement. Long-term continuity of forests was identified using historical maps. Spatial distribution of forests is not equal. In the northern and north-eastern part of the area, there is a large forest complex while in the southern and south-western part of the area, there is lot of forest fragments with surrounding of agriculture fields. Next target was to select beetle group with potential bioindicators of forest continuity. Many beetle species live in forests and the group fulfills requirements for indicating groups. Saproxylic beetles were chosen as a crucial group for a subsequent study. Keywords: continuity, fragmentation, indicator, landscape structure, beetles
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