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Pollination in urban ecosystems
Krygielová, Anna ; Janovský, Zdeněk (advisor) ; Mikát, Michael (referee)
Pollination success in the urban area mainly depends on the characteristics of plant populations and their pollinators, which are determined by the structure and characteristics of the urban ecosystem. Urbanization is a complex and uneven integration of landscape attributes such as habitat fragmentation, a high proportion of built-up area, the often limited size of green areas, and lower connectivity between them. These particular predictors have different effects on plant and pollinator abundance and species diversity. In general, an increasing level of urbanisation reduces the quantity and quality of pollination and therefore negatively affects the reproductive success of plants. On the other hand, in comparison with intensive agricultural landscapes urban areas (especially urban fringes and semi-natural urban areas) can contribute to the diversity, abundance, and reproductive success of plants and the diversity and abundance of their pollinators. This potentially positive influence of the city on biodiversity can be further developed through effective urban planning and appropriate management of existing public and private green areas in the city. Keywords: pollination, urban ecosystems, urbanisation, urban characteristics, urban green spaces, plant-pollinator interactions, plant reproductive success
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What are diferences between parks and gardens and natural ecosystems
Píšová, Martina ; Frouz, Jan (advisor) ; Görner, Tomáš (referee)
This work highlights the importance of green spaces in an urban environment not only for human and his activities, but especially for the biotic element of environment. To these artificial ecosystems, despite their non-productive function, people provide deluxe services such as irrigation and fertilization. This is also reflected in the change of biogeochemical cycles, especially the carbon and nitrogen cycle. The work focuses on the issue of expansion of non-native plant and animal species and extrusion of native species from their natural habitat. By this process the native species are highly threatened in urban environments. The questionnaire survey examined the ability of the respondents, how they can detect semi-natural ecosystems from artificial ecosystems, which have been divided into several categories (choices for artificial ecosystems were: ornamental, romantic and close to nature parks and gardens and choices for natural ecosystems were: forest ecosystems, forest steppe, grassland and aquatic ecosystems). There were examined also emotions, which were invoked by different types of landscapes at respondents, and their preference for self-relaxation in different types of landscapes. Keywords: natural ecosystems, urban ecosystems, biodiversity
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Perception of ecosystem services in an urban environment
Nožková, Markéta ; Vačkářová, Davina Elena (advisor) ; Novák, Josef (referee)
This thesis deals with city ecosystem services and how are these services perceived by the visitors of the city nature areas. Specifically, the thesis deals with ecosystem services provided in the city Carlsbad. As the city Carlsbad is the spa city, great deal of visitors of the city nature areas are tourists and that is why are included in the research both city residents and also temporary visitors of the city. From the point of view of the usual division of the ecosystem services, as it was defined by Millennium ecosystem assessment (provisioning services, regulating services, cultural and supporting services), this thesis focuses mainly on the cultural and supporting ecosystem services, because this spectrum of services is presented in the greatest measure in cities in general and these services are overall the most appreciated in the urban areas. As a methodology was chosen a quantitative research, which was conducted by standardized questionnaire consisting of 19 questions. The survey was carried out in electronical form and it took part from November to December 2016. In total, 206 questionnaires were collected. Through the survey was found out, that people are aware of the services provided by nature environment in city as well as the respondents agree, that city nature areas influence the...
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The Use of Urban Eco-Systems for Environmental Education in Kindergardens
ŠÍMOVÁ, Dita
The bachelor thesis deals with the education of children preschool age through the use of urban ecosystems with an outline of appropriate sites for environmental education in kindergarten in Ceske Budejovice. The theoretical part of work sponsored by literature in general characteristics of ecosystems, urban ecosystems and environmental education. It points to the implications of human impact on nature and the problems of ecological balance of the environment of our cities. The practical part consists of learning blocks to teach environmental education for children from nursery schools in areas relating to the Ceske Budejovice. Learning blocks include activities on offer, games and exploring nature in the field. This section also describes the reaction of active participants in the learning blocks, children from kindergarten and my own analysis through observation.
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