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Spatio-temporal activity of African ungulates at water sources in Mogalakwena River Reserve, South Africa
Homoláč, David ; Hořák, David (advisor) ; Bennitt, Emily (referee)
The large mammals of African savannah are a well-studied group of animals, but few studies focus on the temporal, circadian activity of this group of mammals. Such studies either use problematic methods of data collection (webcams, direct observations) or have been conducted in national parks or large reserves, where movement of the animals is not limited with anthropogenic structures. In such sites, the community of large mammals is usually complete, including the guild of large carnivores. Thus, small, fenced off reserves without a complete community of large mammals are understudied. Therefore, this work focuses on the spatio-temporal activity of ungulates at water sources in the Mogalakwena River Reserve in South Africa, which is an example of a reserve without large predators except the leopard (Panthera pardus). I used camera traps to assess the activity of ungulates, which I placed alongside the Mogalakwena River and at the water holes. With the help of artificial intelligence, I classified the photos to the level of activity of each species. I then tested this activity over space (type of water source) and against biotic and abiotic factors. The activity of ungulates at water sources is influenced by the maximum daily temperature, as the activity shifts to the evening hours during higher...
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Spatial analysis of carpooling in the Czech Republic
OLIVA, Petr
The thesis is focused on the spatial analysis of carpooling in the Czech Republic. Specifically, it monitors Facebook groups dealing with this phenomenom. These groups are used to for sharing offers and proposals concerning carpooling in the Czech Republic. The main goal of the thesis is the spatial analysis of carpooling in the Czech Republic. In the theoretical part, the thesis deals marginally with spatial mobility and other alternative modes of transport. However, the thesis mainly focuses on carpooling itself. It describes the history of carpooling, its forms and its types. In the analytical part, the thesis examines data about carpooling in the observed groups according to specified parameters such as number of members, number of posts per month, distance and other. Futhermore, the analytical part of the thesis deals with spatiotemporal variability and concentration of posts in carpooling groups. The results of the thesis revealed that the largest groups and the most members are associated with the largest cities in the Czech Republic, especially Prague. The largest concentratration of offers and proposals for carpooling was found on the routes between these cities. The evaluation of spatiotemporal variability and concentration of posts determined that greatest concentration and the highest numbers of posts were in the morning and evening hours in days Monday, Friday and Sunday.
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