Anna Tichá

• Ph.D.
• Research Assistant at Charles University in Prague

Multiproxy palaeoenvironmental analyses represent a promising tool for complex reconstructions of continent-sea or air-sea interactions in shallow marine environments. This is in particular illustrated by the case of strong climatic variations in the late Pleistocene to mid-Holocene. A unique combination of geochemical proxies (143Nd/144Nd, 87Sr/86...

Water brownification has long altered freshwater ecosystems across the northern hemisphere. The intensive surface water brownification of the last 30 years was however preceded by previous long-lasting more humic browning episodes in many catchments. To disentangle a cascade of browning-induced environmental stressors this longer temporal perspecti...

In the Holocene, the former Lake Komořany was the largest natural water body on the current territory of the Czech Republic. This large and shallow lowland lake came under a specific category among other lake localities in the region. The paper summarises the history of this lake, including the artificial draining of its last remnants in the first...

In this study we aim to investigate millennial-scale dynamics of Isoëtes, a type of macrophyte well adapted to oligotrophic and clear-water lakes. Despite its wide distribution during the Early Holocene, nowadays Isoëtes is considered as vulnerable or critically endangered in many Central European countries. Using a multi-proxy palaeoecological rec...

Shallow lowland lakes undergo long-lasting natural eutrophication processes, which can be studied through the development of communities of aquatic organisms. However, records showing millennial-scale trophic status variability in these water bodies are rare. Two radiocarbon-dated sedimentary profiles from former (now destroyed by brown coal mining...

Local quillwort (Isoëtes sp.) populations have slowly diminished since the Last Ice Age and are thus considered endangered in many Central European countries. Based on direct observation and field experiments, many recent ecological studies have proposed several hypothetical causes of the decline in quillwort populations across Europe. Unfortunatel...

Mountain lake sediments are invaluable recorders of environmental change. Here, we present the thorough paleolimnological analysis of glacial lake in the Bohemian Forest, which aims to supplement our knowledge about paleoenvironmental development of Prášilské jezero (49.07519N, 13.39976E), Central Europe. Diatom analysis was conducted as a part of...