|
|
The sex determination in the gecko genus Phelsuma
Peš, Tomáš ; Kratochvíl, Lukáš (advisor) ; Kverková, Kristina (referee)
Geckos (Gekkota) are a diverse group of squamate reptiles. The species richness of geckos is associated with a wide variety of sex determination systems. We can encounter male and female heterogamety, environmental sex determination, or asexuality in this group of reptiles. The diversity of geckos makes this group very interesting for studying of the evolution of sex determination. Due to the large number of species, we know the type of sex determination in just a fraction of taxa. The genus Phelsuma has been little studied in this respect and, with one exception, published data are not very reliable. In this thesis, sex determination in Phelsuma laticauda and Phelsuma nigristriata was investigated using an incubation experiment. I proved that both species have environmental sex determination. The effect of incubation temperature on morphological characteristics was also investigated in hatchlings. The possible persistence of this effect into adulthood was re-tested in one year old geckos.
|
|
|
Habitat dependence of persistence of clonal connection in plants
Martincová, Nina ; Weiser, Martin (advisor) ; Koubek, Tomáš (referee)
The review is about the role of environment to the longevity of connection in clonal plants. The first part is dealing with theoretical models, which describe the interaction of plants with different strategies in longevity of clonal connection in a model habitat. Subsequently, it analyses concrete attributes of the environment - heterogeneity, carrying capacity, amount of disturbances and competition. This part focuses more thoroughly on their impact on persistence of clonal connection and strategy of clonal reproduction in general. The last part refers to some other phenomena which could influence the length of persistence of a clonal connection.
|
|
| |
|
| |
|
|
Dopad environmentálních podmínek na vznik start-upů mladých lidí
Blšáková, Daniela ; Matuštík, Ondřej (advisor) ; Oškrdal, Václav (referee)
The diploma thesis deals with the influences that affect young people aged 18 to 24 in the establishment of start-ups. The main aim was to find out which environmental factors influence emergence of youth start-ups and how they differ in Europe, China and the US over time. The thesis describes three models that explain the entrepreneurial intentions and that serve better understanding of human behavior in setting up businesses. Further the thesis includes a description of the individual and environmental factors that are based on current studies. Due to the title of thesis only the impact of environmental factors was tested. The analysis was conducted on a public data of the Global Entrepreneurship Monitor.
|
|
|
Delinquency in terms of psychopathology
ŠPIRHANZLOVÁ, Iveta
This thesis deals with the most common psychopathological disorders which are found in connection with delinquency. It explains concepts such as psychopathology, delinquency, delinquent conduct, personality, temperament, character, prevention. It elaborates in detail the causes and factors that influence occurrence and development of psychopathological disorders and also shows how they manifest, particularly with regard to association with delinquency. Thereafter it is followed by various psychopathological disorders and diseases, including personality disorders, which occupy the specific place among them. Preventive measures outline the options which can be used in the prevention of delinquency and the thesis is concluded by research results which complete already mentioned findings.
|
|
|
Habitat dependence of persistence of clonal connection in plants
Martincová, Nina ; Weiser, Martin (advisor) ; Koubek, Tomáš (referee)
The review is about the role of environment to the longevity of connection in clonal plants. The first part is dealing with theoretical models, which describe the interaction of plants with different strategies in longevity of clonal connection in a model habitat. Subsequently, it analyses concrete attributes of the environment - heterogeneity, carrying capacity, amount of disturbances and competition. This part focuses more thoroughly on their impact on persistence of clonal connection and strategy of clonal reproduction in general. The last part refers to some other phenomena which could influence the length of persistence of a clonal connection.
|
|
| |
|
|
Heritability of various types of behaviour in birds
Janatová, Veronika ; Karlíková, Zuzana (advisor) ; Svobodová, Jana (referee)
The goal of this thesis is the summary of existing knowledge about heritability of various types of behaviour in birds. The aim is also to emphasize the ecological nature of this knowledge.
This thesis consists of three main parts. The first part is focused on general view about how people looked at animal bevaviour in the past and how they look at it now. Methods used for research of behavior and its heritability are described as well as basic behavioural traits, their general interconnections and inseparability in animals. The second part is aimed at specific behavioural traits in birds. The factors affecting bird behavior are also mentioned. In the third part, deep analyses of scientific studies considering particularly ethology and genetics are made.
The contribution of this thesis is to provide complete information about research of bird ethology, its heritability and conection with ecology. Perhaps, it could be inspiration for further research and raise new questions.
|
|
|
The importance and influence of family and social environment on locomotor activity of children
ŽIŽKA, Jan
This thesis deals with the importance of physical activity of children at school age and the effect on the formation of social surroundings. The aim was to find out who most affect children's physical activity and whether people have the physical activity of children correct opinion, or conversely whether fictional ideas that often lead to the cause of decline in physical activity. The literature search describes the theoretical basics. As a research method of this paper questionnaire was used. Survey data were statistically processed and evaluated. Overall, people rated as the most important influence of family on children's physical activity. Misconception had in determining the daily dose of children's movement.
|
guest ::
