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Predikace druhového složení těžeben na základě biotopového mapování okolní krajiny: využití charakteristických druhů vyšších rostlin
SLABA, Michal
The surrounding habitats play an important role in the spontaneous vegetation succession in disturbed sites. They serve as donor sites for species colonizing various post-mining sites from the close surrounding. This diploma thesis deals with the species composition in post-mining sites and the surrounding habitats up to the 1 km distance from the locality. The results indicate, that basalt quarries share the largest amount of species with their surrounding habitats. The studied methods have got limited capability to predict the species composition of post-mining sites using only the knowledge about habitat types occurred in the surrounding. On the other hand, species composition of the surrounding habitats, defined by a selection of the representative relevés of the Czech National Phytosociological Database (CNFD), seems to be more promising approach. It could provide more precise results applied in ecological restoration of post-mining sites in the Czech Republic.
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Interactions between animals and plants in urban forests
Dobešová, Jana ; Vojta, Jaroslav (advisor) ; Horčičková, Eva (referee)
INTERACTIONS BETWEEN ANIMALS AND PLANTS IN URBAN FORESTS ABSTRACT This Bachelor thesis focuses on the influence of big mammals (especially Cervidae, wild boars, badgers and foxes) on herb understory in urban forests. Cities are continuously expanding and thus occupy natural habitats of the animals. Therefore, these animals are habituating in urban forests. The specific conditions of both urban and forest habitats and their influences on animal and plant distribution are mentioned. From the possible influences of animals on herb understory, special emphasis is put on herbivory, which can affect individuals, populations and even whole plant assembly. The influence of trampling, urination and burrowing are also investigated. Finally there is a summary of big mammals' influence in relation to human influences. Key words: Urban forests, herbivory, herb layer, disturbation, nutrients, large mammals
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Trophic relationships between insectivorous birds and insect in Papua New Guinea
TVARDÍKOVÁ, Kateřina
The thesis describes diversity of birds along a complete altitudinal gradient and in forest fragments in lowlands of Papua New Guinea. It focuses separately on the diversity of different feeding guilds, and discusses their links to habitat and food resources. More specifically, it focuses on forest insectivorous birds, their predation pressure on arthropods, feeding specializations and preferences, and some of the ways how insectivores search for food.
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