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Persistent Organic Pollutants in the Environment of the Southern Moravia Region
Lána, Radim ; Kráčmar, Stanislav (referee) ; Večeřa, Zbyněk (referee) ; Hajšlová, Jana (referee) ; Vávrová, Milada (advisor)
Byla provedena studie bioakumulace POP v potravním řetězci a historických trendů hladin POP v sedimentech Brněnské přehrady. Současné úrovně kontaminantů byly stanoveny v jelci tloušti z řeky Svratky a rovněž byla posouzena hygienická kvalita ryb z rekreačního rybolovu. Současné úrovně POP v terestrickém ekosystému byly posouzeny pomocí analýz jehličí jako přirozeného indikátoru znečištění. Studium jedinců tří druhů dravých ptáků z ČR bylo zaměřeno na zhodnocení kontaminace těchto vrcholných predátorů POP. S pomocí analýz vybraných druhů ryb ze Záhlinických rybníků byl rovněž studován proces bioakumulace. Posouzení parametrů dvou moderních extrakčních technik a jejich využitelnosti pro izolaci POP z různých matric bylo námětem poslední části dizertace.
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Factors threatening European raptors and actions for their conservation
Žandová, Denisa ; Reif, Jiří (advisor) ; Sedláček, Ondřej (referee)
Due to their visual appearance and general size, raptors are, among a general public, revered group of animals. This also, brings them more attention in sphere of animal conservation. Despite protection, which is given to them, raptors are among other birds severely endangered with their population decreasing in multiple places across Europe. The most frequent factors, which endenger raptors, are habitat loss, poaching, high-voltage powerlines, wind turbines and lead poisoning. This paper focuses on, describtion of methods of raptor protection, determination of efective protection measures, as well as determination of new useful solutions applicable for protection improvement. Studies has shown that in individual areas of Europe are endengering factors diferent than in others. Species with same ecological requirements and a way of life are endangered by same factors. The approach to these issues also changes depending on a country and some potential factors are not examined enough, yet. Thus it is of a great importance to spend more time on resolving these issues. Keywords: raptors, biodiversity conservation, risk factors, habitat loss, lead poisoning, poaching
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Leucocytozoon and methods of its detection in raptors
Sekerášová, Iveta ; Brzoňová, Jana (advisor) ; Majerová, Karolina (referee)
The genus Leucocytozoon is a bird parasite. Its hosts constitute usually of representatives of the Falconiformes group and hawks (Accipitridae). The vector of this parasite are blackflies (family Simuliidae). This thesis brings an overview of species of the genus Leucocytozoon so far detected in birds of prey. The thesis focuses primarily on methods of detecting Leucocytozoon in hosts. Traditionally, this genus has been described on the basis of its morphological characters observed via microscope. With the discovery of polymerase chain reaction method (PCR), the detection possibilities expanded and allow us to study this parasite on molecular levels. The thesis contains a basic overview of detection methods, characteristics of their principles and outlines their strengths and weaknesses regarding the practical applicability as well. Based on that, the microscopic approach alongside with the detection based on molecular methods is recommended.
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Leucocytozoon and methods of its detection in raptors
Sekerášová, Iveta ; Brzoňová, Jana (advisor) ; Majerová, Karolina (referee)
The genus Leucocytozoon is a bird parasite. Its hosts constitute usually of representatives of the Falconiformes group and hawks (Accipitridae). The vector of this parasite are blackflies (family Simuliidae). This thesis brings an overview of species of the genus Leucocytozoon so far detected in birds of prey. The thesis focuses primarily on methods of detecting Leucocytozoon in hosts. Traditionally, this genus has been described on the basis of its morphological characters observed via microscope. With the discovery of polymerase chain reaction method (PCR), the detection possibilities expanded and allow us to study this parasite on molecular levels. The thesis contains a basic overview of detection methods, characteristics of their principles and outlines their strengths and weaknesses regarding the practical applicability as well. Based on that, the microscopic approach alongside with the detection based on molecular methods is recommended.
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Persistent Organic Pollutants in the Environment of the Southern Moravia Region
Lána, Radim ; Kráčmar, Stanislav (referee) ; Večeřa, Zbyněk (referee) ; Hajšlová, Jana (referee) ; Vávrová, Milada (advisor)
Byla provedena studie bioakumulace POP v potravním řetězci a historických trendů hladin POP v sedimentech Brněnské přehrady. Současné úrovně kontaminantů byly stanoveny v jelci tloušti z řeky Svratky a rovněž byla posouzena hygienická kvalita ryb z rekreačního rybolovu. Současné úrovně POP v terestrickém ekosystému byly posouzeny pomocí analýz jehličí jako přirozeného indikátoru znečištění. Studium jedinců tří druhů dravých ptáků z ČR bylo zaměřeno na zhodnocení kontaminace těchto vrcholných predátorů POP. S pomocí analýz vybraných druhů ryb ze Záhlinických rybníků byl rovněž studován proces bioakumulace. Posouzení parametrů dvou moderních extrakčních technik a jejich využitelnosti pro izolaci POP z různých matric bylo námětem poslední části dizertace.
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Caring for the injured and otherwise handicapped Raptors (Falconiformes) and owls (Strigiformes) in rescue centers
SLAVÍKOVÁ, Kristýna
At least half of our raptors and owls are classified into three categories the list of specially protected animals. Electricity poles, traffic and landscape changes have led to the disappearance many individuals of raptors and owls in the wild. This work evaluates range and success of the return raptors and owls into the wild. All information about adopted raptors and owls were compiled by selected rescue station for animals ČSOP Vlašim. Rescue station records served as basis in the range of years 2009 - 2013. Most of Falconiformes were admitted individuals of Buteo buteo and Falco tinnunculus. Most common causes of admit into the rescue station were injuries by transport facilities or burns due to electric current. From Strigiformes were most admitted individuals Asio otus and Strix aluco. The most frequently been admitted youngs fell out of the nest . The total number of predators during the reported period were release back into the wild less than half of the accepted ones. The total number of admitted owls were release into the wild only a quarter of individuals.
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