National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Relationship between pollen diversity and floristic diversity - utilization for study of the past
Koďousková, Lucie ; Kuneš, Petr (advisor) ; Prach, Jindřich (referee)
This thesis deals with the relationship between palynological diversity and floristic diversity. Diversity is complex quantity, which consists of a number of species, the number of individuals and relative frequency of species known as evenness. It characterizes the diversity at the species level, genetic level or within communities. Its relationship with palynological diversity is problematic, especially because of lack of taxonomic precision in palynology, species-specific differences in pollen production and dispersal and sample size, since the number of taxa increases with sample size. The thesis also focuses on the studies which tried to prove positive correlation between palynological and floristic diversity, including techniques used. The second part describes methodology of collecting vegetational and palynological data and the treatment of sampes.
Relationship between pollen diversity and floristic diversity - utilization for study of the past
Koďousková, Lucie ; Kuneš, Petr (advisor) ; Prach, Jindřich (referee)
This thesis deals with the relationship between palynological diversity and floristic diversity. Diversity is complex quantity, which consists of a number of species, the number of individuals and relative frequency of species known as evenness. It characterizes the diversity at the species level, genetic level or within communities. Its relationship with palynological diversity is problematic, especially because of lack of taxonomic precision in palynology, species-specific differences in pollen production and dispersal and sample size, since the number of taxa increases with sample size. The thesis also focuses on the studies which tried to prove positive correlation between palynological and floristic diversity, including techniques used. The second part describes methodology of collecting vegetational and palynological data and the treatment of sampes.
Vliv výmladkového hospodaření na strukturu a diverzitu dřevinného patra v jihovýchodní Evropě
Svoboda, Jan
This work deals with the influence coppice management on the structure and diversity of coppice forest in Turkey (Southeastern Europe). Data are characterizing the local natural conditions in the school forest area of Istanbul University. The structure was measured by Field-map, 46 plots with a radius of 9 m (254 m2). The data were analyzed in the R statistic programme. It was found that the influence of habitat and exposure to the representation of individual tree species is statistically significant. Abundance of species was significantly higher in the active coppice. Shannon's diversity index was the highest at hill exhibition. Species evenness (Evenness) EH increased proportionally with the content of calcium (Ca) in the soil.

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