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Hydrochemical and hydrogeological assessment of spring waters in the western Lusatian Mountains and Zittau Basin
Palkovičová, Veronika ; Komínková, Dana (advisor) ; Kamil, Kamil (referee)
The bachelor thesis was conducted within the project "Springs connect landscapes and countries - environmental education and cooperation in the Liberec - Zittau region". The studied area is located along border of the Czech Republic and the Federal Republic of Germany, in the region of the former Sudetenland. The area encompasses two sea drainage basins and four geological units, resulting in a diverse landscape morpholgy with various types of groundwater.
From March until December 2016, field measurements and water sampling were carried out on selected springs in the western part of the Liberec - Zittau region. Basic physical-chemical parametres (temperature, pH-value, electrical conductivity, redox-potential, dissolved oxygen and, if possible, discharge) were determinee on the field. Water samples were collected and processed in the laboratory. Concentrations of most anions (SO42-, Cl-, NO3-, PO43-, ...) were measured by Ion Chromatograph (Dionex ICS-1100). Cations (Ca2+, Na+, Mg2+, Fe3+, Al3+, K+, ...) were measured by inductively coupled plasma with optical emission or mass spectrometry (ICP-OES, ICP-MS), depending on the expected concentration.
The measured data was averaged and sorted into four geological categories according to the geological map (crystalline complex, cretaceous, quaternary sediments, volcanites). Data were further evaluated using the demo version of the commercially available AquaChem hydrochemical software (Piper and Stiff diagram) as well as in the statistical program R. The average concentrations in most springs confirmed the attribution to the particular geological settings, however, some springs reveal a significant affect by agricultural activity. From the graphical representation of the concentration of selected ions in the spring water, it is also evident that the Quaternary sediments of the Zittau basin were likely formed from the surrounding crystalline.
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The status of Phengaris nausithous population on selected meadows in Broumovsko region
Štěpánková, Anežka ; Vrabec, Vladimír (advisor) ; Kamil, Kamil (referee)
The purpose of this thesis entitled Population Status checkered blue butterfly Phengaris nausithous (Bergsträsser, 1779) on selected meadows in Broumov area was to find and evaluate the situation regarding the size and structure of populations of the butterfly Phengaris nausithous, on a recently selected location within the territory of the Czech Republic. A used monitoring method was a Capture-Recapture method at 13 locations in the PLA Broumovsko, where the occurrence of the food plant Sanguisorba officinalis, which is an integral part of the species evolution, was the key for choosing the location. The ant of the genus Myrmica is also important for the evolution of the P. nausithous. The results were evaluated using the program MARK and Statistika and then transferred into graphs and tables. In 2016 it was marked 687 of the P. nausithous and the sum for the overall metapopulation totaled 1,487 individuals. Most of the P. nausithous occurence with the number of (fixed catches) 149 was registered at the Hynčice 2 (H2) area, which was the third largest area of all studied habitats. The least number of 15 of the P. nausithous has been marked at the Hynčice 1 (H1) area. Maximum estimates of numbersfor patches were determined with the program MARK with the highest number of 367 individuals in the H2 area, whereas the lowest number of 38 individuals at the H1 area.The numbers of P. nausithous determined by the application MARK were significantly higher than those of fixed catches, indicating good aplication of methodology. It was captured a total of 49 migrations. Overall 31 % of individuals migrated and 18 % of individuals migrated within assumed total number. Most flyovers were between the areas H2 and H4 (11 flyovers) and between areas V1 and H4 was recorded flyover at a distance of 5.3 km, which can be considered as one of the longest flyovers. The average distance of migration of P. nausithous was 1.46 km. The number of immigrants for solid flyovers was set to 49 individuals and the number of immigrants to 58 individuals. The hypothesis of this work was: All the examined areas communicates using flyovers of butterflies and the system can be considered as a single metapopulation and was confirmed given on the basis of the results. Target species dependence on the density of host plant vegetation was not crucial according to the graphic representation. The first T-test found that there is no association between P. nausithous abundance and between the length of the migration between particular areas. The second T-test found that with increasing number of flyovers the length of those flyovers gradually decreased.
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The status of Large Blue Phengaris teleius population on selected meadows in Broumovsko region
Hejretová, Kateřina ; Vrabec, Vladimír (advisor) ; Kamil, Kamil (referee)
I conducted a monitoring of Scarce large blue Phengaris teleius (Bergsträsser, 1779) by reverse capture of marked individuals method on 13 examined meadows in Broumov area near Ruprechtice, Hyncice and Vižňov in the period from 4th July to 5th August of 2016. I marked a total of 409 butterflies of this species. Data were evaluated with the help of software MARK 8.1 and the total number of butterflies metapopulation was estimated at 802 individuals, whereas the estimates of quantity for each area ranged from 2-269 specimen. I registered most of the individuals at the Ruprechtice 2 station.
I documented the flyovers of P. teleius individuals between stations within a Ruprechtice Hynčice area. I consider the involvement of Vižňov as realistic, but due to the local total number of butterflies, the detection of P. teleius flyover failed. I consider the hypothesis formulated in the objectives of the work: All the examined areas communicates via overflights of the butterflies and the system can be considered as a single metapopulation, as confirmed.
I consider as important a finding that there still lives a stable population of Phengaris teleius and P. nausithous butterflies in Broumov area. The numbers of these butterfiles are in hundreds to thousands of individuals, and it is important to remember that this is only the population of examined areas, not all areas of occurrence of blue butterflies in stated territories. Those numbers after the first year of observation are unknown. The layout of examined colonies is beneficial for targeted protection planning. The metapopulation model continent islands is not the case of stations examined by myself.
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Caterpillars food of Minois dryas on selected area
Hájková Březinová, Kateřina ; Vrabec, Vladimír (advisor) ; Kamil, Kamil (referee)
The dryad Minois dryas, described in 1763 by Giovanni Antonio Scopoli, belogs to our endangered species of butterflies. Its expansion today is restricted to a few localities in Central and Southern Bohemia and Southern Moravia only. Renewal and preservation of appropriate types of biotopes and research of its autecology and bionomy play the key roles in conservation of this species. The intention of my thesis was to identify host plants of Minois dryas caterpillars, to find out which grass is the most preferred one and to verify the correctness of hypothesis that the most preferred plant is also dominant from the range of potential host plants in the chosen area (a meadow in the vicinity of Žehuň in Central Bohemia). In the first part of experiment caterpillars were offered grasses collected in Žehuň. Plants which were eaten by caterpillars, were determined as host plants. According to results of this stage the host plants of caterpillars in the Czech republic are Dactylis glomerata, Bromus erectus, Festuca rubra, Arrhenatherum elatius and Carex acutiformis. In the second part of experiment caterpillars were offered all grasses evaluated in the first part as host plants and frequency of eaten / untouched leaves was recorded. Results identified Bromus erectus as the most desired grass and statistical proved there was a strong dependance among the plants . As Bromus erectus is indeed the most dominant grass in the location (approx. 30 % of all grasses), the hypothesis was confirmed. The experiment contributed with some other knowledge about dryad's bionomy. Observations confirmed that caterpillars pupate at the turn of June and July, primarilly at night. Larvae pupates in or on the ground. I did not notice any silk spinning during the time of pupation which is mentioned by Beneš et al. (2002). The pupal stage lasted 22 -- 23 days. Butterflies hatched in the morning. Imagos chose red watermelon as a food in most cases which proves that adults prefer red colour while deciding on their food (Vrabec et al., 2007).
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Comparison of the lepidopteran fauna of selected protected areas in CR
Eichlerová, Barbora ; Vrabec, Vladimír (advisor) ; Kamil, Kamil (referee)
This master thesis is focused on butterfly research and their characteristic in three different regions in Czech republic. These regions were Čertova zeď, Suché skály and an area called Swamp. Inventory research was focused on butterflies encompassing the whole order (Lepidoptera), The research was done using recommanded methods coming from standard entomology practice.
Suché skály and Čertova zeď are predominantly forested enviroments with sandstone rocks, which are sought after by turists. In contrast, Swamp area is marshy.
Sampling of butterflies had two stages. Diurnal butterflies were observed during walking rounds (First stage), however since it took place in areas with low occurrence of meadow ecosystems, only a small number of butterflies were observed. Sampling of the nocturnal butterflies (Second stage) took place during late night hours.
124 species of butterfly were found in Čertova zeď national park, using inventory research. None of these species are mentioned in the Red list of endangered species, nor in the list of specially protected species. In the area of Suché sklály 98 species were found, belonging to 20 families, where only one of them is specially protected Papilio machaon (Linnaeus, 1758). In the last area Swamp, 170 species was found, whereas 8 of them belong to the Red list : Acronicta menyanthidis (Esper, 1798) .Arichanna melanaria (Linnaeus, 1758), Callopistria juventina (Stoll, 1782) ,Coscinia cribraria (Linnaeus, 1758), Drymonia obliterata (Esper, 1758), Eugraphe subrosea (Stephens, 1829), Hyles galii (Rottemburg, 1775) and Lithosia quadra (Linnaeus, 1758).
Tested hypothesis was that higher diversity of butterfly species is in areas with higher plant diversity. This hypothesis was confirmed.
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Utilization of predatory mite Typhlodromus pyri Scheuten within IPM and organic hop growing
Nesvadba, David ; Pulkrábek, Josef (advisor) ; Kamil, Kamil (referee)
The objective of my work was to evaluate the efficiency of a native species of predatory mite Typhlodromus pyri Scheuten against two-spotted spider mite (Tetranychus urticae Koch) within IPM and organic hop growing and to find out if hop protection against T. urticae with the help of T. pyri can replace conventional hop protection based on miticides and if it can be profitable.
The trials were carried out since 2011 till 2015 in three hop gardens at a research farm Stekník, which belongs to Hop Research Institute in Žatec (Saaz). The first experimental hop garden, where IPM is practiced, is called Černice I. The other one BIO is, as the name says, under organic regime. The third one called Kaplička (Little Chapel) I., served as a reference one because hop is grown there under a common conventional system with the use of miticides to control T. urticae.
In regular intervals since the time when the first spider mites were observed at hop leaves till the harvest fifty leaves were sampled (17 from lower, 17 from middle and 16 from upper parts of hop plants) in the hop garden with IPM regime and in the organic hop garden. Population densities of eggs, mobile stages of T. urticae and T. pyri were assessed together with nymphs of predatory Thrips of the genus Aeolothrips, which occurred there naturally as the dominant native acarophagous predators. The results were statistically evaluated with the help of correlation analyses and t-test for independent groups. Efficiency of T. pyri and economical comparison with chemical protection were made as well.
It is possible to conclude that after release of predatory mites and under using of selective pesticides the biodiversity is higher. Hop protection against two-spotted spider mite with the help of T. pyri can be profitable and it can replace chemical protection against this dangerous pest for many years. T. pyri is commonly more efficient if population density of T. urticae is lower. The tightest dependence at the level of 90% was statistically confirmed between occurrence of T. urticae eggs and its mobile stages. Statistically important difference was found out between the two different types of hop growing in the most of the cases.
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