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Management rašelinných luk a pramenišť pro podporu ohrožených druhů rostlin
BĚLOVSKÁ, Barbora
This bachelor thesis provides a brief summary of the main types of peatbogs and springs in the Czech Republic and reasons for their threats. It also presents the possibilities of restoration of disturbed localities and appropriate management for the support of endangered plant species. In the second part, it deals mainly with the management of habitats with repatriated population of the critically endangered stonecrop (Sedum villosum). The succes of the repatriated population of this species in the Jezdovické rašeliniště Nature Monument was evaluated. A project proposal is included which suggests the next management of this locality for the support of the Sedum villosum population there.
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Status of the flatworm Crenobia alpina in the food network of a spring
Reslová, Marie ; Simon, Ondřej (advisor) ; Černý, Martin (referee)
This work focuses on food preferences of freshwater triclad Crenobia alpina and its position in spring food web. It explores the ability of C. alpina to capture living prey, considers ability of C. alpina and to survive feeding on several types of food. Furthermore it gives view on its occurence and ecological preferences in context of other spring species. One chapter is concerned with taxonomy, anatomy and ecology of Tricladida and C. alpina itself. Short term food-preference experiments show the ability of C. alpina to capture living Lumriculidae and larvae of Ephemeroptera. We don't confirm feeding of C. alpina on living Gammarus, although their occurence in our springs and ecological preferences are similar. C. alpina feeds significantly more on damaged prey without substantial afinity to any species. A year-long experiment on C. alpina in lab conditions finds that this flatworm is able to survive and even breed with nothing but filtred water. This fact connected with the observation of huge densities of flatworms in spring source, opens up a question whether C. alpina can be considered a real predator. Key words: Crenobia alpina, triclad flatworms, food preferences, spring
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Status of the flatworm Crenobia alpina in the food network of a spring
Reslová, Marie ; Simon, Ondřej (advisor) ; Černý, Martin (referee)
This work focuses on food preferences of freshwater triclad Crenobia alpina and its position in spring food web. It explores the ability of C. alpina to capture living prey, considers ability of C. alpina and to survive feeding on several types of food. Furthermore it gives view on its occurence and ecological preferences in context of other spring species. One chapter is concerned with taxonomy, anatomy and ecology of Tricladida and C. alpina itself. Short term food-preference experiments show the ability of C. alpina to capture living Lumriculidae and larvae of Ephemeroptera. We don't confirm feeding of C. alpina on living Gammarus, although their occurence in our springs and ecological preferences are similar. C. alpina feeds significantly more on damaged prey without substantial afinity to any species. A year-long experiment on C. alpina in lab conditions finds that this flatworm is able to survive and even breed with nothing but filtred water. This fact connected with the observation of huge densities of flatworms in spring source, opens up a question whether C. alpina can be considered a real predator. Key words: Crenobia alpina, triclad flatworms, food preferences, spring
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Floristic research of an east the Krkonoše Mountains (Czech Republic) springs area (Elbe)
Hronovská, Markéta ; Skalický, Milan (advisor) ; Martinková, Jaroslava (referee)
Floristic research of spring areas in east part of Krkonoše is subject of this bachelor work. It is based on inventorying and localizing local vascular flowers and mosses. Making out some maps made from this analysis is another point of this work.
Inventory of all species was made in August, September and October 2015. It was made by subjective method. Abundance of all species is result of this method.The scale of abundance was appropriately chosen due to capture the abundance of species richness on the monitored areas. The characteristics of the area of interest were processed by literature research.
Totaly 59 vascular plant species and 9 moss species were deterinated in the second part of 2015 growing season. 8 species were classified as endangered of the total number of vascular plant species. Spring of Blue brook and Renner brook were showed the highest species diversity and the greatest amount of vascular plant species was found on the headwater area of Úpa (so colled deliquescent rock). On the contrary, at least vascular plant species were founded on spring of Dry brook and Javoří brook.
Computer program CANOCO 5 and PAST 3. 11 were used to compare localities by means of multivariate RDA analyses with respect to natural conditions.
After studyiung litereture, which relates to the care and protection of non- forest habitats located in protected areas were suggested a specific management for each site.
Discovered information should be valuable for future detailed inventory of these or similar places.
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Spring fen vegetation in west Bohemian spring fen area
LABURDOVÁ, Jitka
This thesis is about vegetation and water chemistry of thirty spring fens in West Bohemia. The aim of this work is to find out if there are any relationships between vegetation and water chemistry in the studied area. To investigate it, at each locality one fytosociological relevé of size 4 x 4 m was made and in autumn was taken one water sample.
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