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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The study of bryophyte species richness and community composition on a very fine spatial scale connected to in situ measured microclimate
 Růžičková, Anna ; Man, Matěj (advisor) ; Marková, Ivana (referee)
The life of bryophytes is closely connected with their surrounding environment. Changes in atmospheric conditions on the microscale directly affect the physiological functions of bryophytes, which in turn determine their distribution. The current development of technologies allows us to measure the microclimate affecting bryophytes directly in the field. Nevertheless, there have not been many studies published examining the response of bryophytes to in situ measured microclimate. This diploma thesis is one of the first in Europe to provide data from continuous field microclimatic measurement performed on a scale relevant to bryophytes. It deals with the influence of the microclimate on the bryophyte species richness and community composition within a single gorge in the Bohemian Switzerland National Park. For 17 months, 38 HOBO Pro v2 Onset dataloggers were recording air temperature and air humidity 10 cm above the ground. I performed detailed bryological survey on two differently sized plots (circle with a radius of 1 or 2 m) around each of the dataloggers. The microclimate is influenced by the topography and character of the vegetation, therefore I derived topographical data from a digital terrain model (resolution of 1 m), calculated the canopy openness using hemispherical photographs and...
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Community structure of leaf-chewing insect on willows
 VOLF, Martin
The communities of leaf-chewing insect on willows were studied. The effect of host-plant phylogeny, leaf morphology and secondary metabolites on community structure was examined.
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