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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Assembly rules in plant communities
 ŠVAMBERKOVÁ, Eva
Understanding the mechanisms of species co-occurrence in plant communities and determining the most important drivers of community assembly is one of the central questions in community ecology. Problematics of assembly rules is relatively difficult and most of the studies are based on null models, simulations, or observational methods rather than on experimental approach. This thesis focused on an experimental approach which can clarify many ecological mechanisms contributing to answer many questions related to assembly rules concept. Research in this thesis was focused both on stochastic and deterministic processes influencing the species community composition. Adding seeds or transplants of different species (including also the non-resident species) into community and also into plots with restricted competition and monitoring their establishment and survival for several years, the research highlighted the important role of priority effects on species community composition, the importance of the biotic filter as one of the main drivers in composition of meadow species and suggested that species composition is necessary to compare with the appropriately defined species pool. Research in this thesis also compared different estimation methods of species pool assessment with experimentally determined species pool trying to find the most appropriate possibility of the estimation of species pool.
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Optimized methodology for temporal transplantation of Luronium natans during reconstruction of its native pond
 Čtvrtlíková, Martina
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Trial transplantation of Luronium natans to temporal refugees for the purpose of planned reconstruction of its native pond
 Čtvrtlíková, Martina
Floating water-plantain (Luronium natans L Rafinesque) is a critically endangered aquatic macrophyte species inhabiting two localities in the north of the Czech Republic (PLA Labské pískovce). Due to planned reconstruction of one of the native localities, called Kralovomlynsky pond, it is necessary to provide survival of the endangered species. Large transplant experiment allowed for optimizing methodology for careful collection of a large amount of native plants from the pond and their transplantation to three refugees.
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