|
|
Temperate flora of Patagonia and specific points of its evolution
Koubek, Matěj ; Ptáček, Jan (advisor) ; Šrámková, Gabriela (referee)
Patagonia is one of the few regions in the Southern Hemisphere with a temperate climate, and therefore provides a unique environment for studying the evolution of the local flora. Patagonian plants, like their temperate counterparts in the Northern Hemisphere, show higher rates of polyploidy. Polyploidy is a widespread condition among plants that plays a key role in the adaptation of species to various extreme stress conditions. Climatic characteristics, glaciations or volcanic activity, for example, are factors influencing the distribution of organisms. This work focuses on the study of the Patagonian flora, in particular on alpine and steppe species and their biogeography in relation to the climate and geology of the area. It also discusses the relationship between polyploidy and this distribution. Specifically, this work focuses on the widely distributed model species Azorella prolifera, which exhibits three ploidy levels. However, we have zero knowledge of the occurrence of individual cytotypes. The distribution and properties of polyploids have not been studied to a sufficient level in the Southern Hemisphere. Only a fraction of the papers dealing with this issue focus specifically on Patagonian plants. A more comprehensive insight into this topic may lead to a better understanding of the...
|
|
|
Evolution of proglacial lakes in the South Patagonian Icefield
Schreiner, Vojtěch ; Vilímek, Vít (advisor) ; Šobr, Miroslav (referee)
Today, as our planet warms, the dangers posed by proglacial lakes are becoming increasingly apparent. Often, due to faster glacial retreat, these lakes are enlarged and the risk of lake dam failure is consequently increased. This can lead to a phenomenon known as GLOF (Glacial Lake Outburst Flood), i.e. the breaching or overflowing of a lake dam and subsequent flooding of downstream areas. The key to limiting the damage caused by these events is to increase our knowledge of this phenomenon and to be able to anticipate these events in time. The basis for this must be an analysis of glacial lakes in the area. This should include a time element, which will allow us to keep track of changes in the amount of water retained in the lake. This is the focus of this paper. The South Patagonian Icefield was chosen as the research area and proglacial lakes were mapped from images taken in 1985 which are available on Google Earth Pro. In this way, 93 lakes were found and their evolution was followed up to the present day. From these observations an inventory table with spatial and temporal elements was created. It was confirmed that most of the proglacial lakes in this region are also experiencing an increase in area.
|
|
|
INVENTORY AND ANALYSIS OF RISK GEOMORPHOLOGICAL PROCESSES IN THE CHILEAN PART OF PATAGONIA USING RS
Chotěborová, Markéta ; Vilímek, Vít (advisor) ; Šefrna, Luděk (referee)
Area of interest of this bachelor thesis is part of Chilean Patagonia. It is spread through the Chilean regions of Los Lagos, Aysén and Magallanes. The local landscape consists of crystal blue lakes, glaciers, fjords and snow-capped mountains. Creating this landscape is involved in many endogenous and exogenous geomorphological processes. These processes take place on earth for millions of years, some of them, become to be risky when people began settling in this territory. Among these risk geomorphological processes in the countries of interest include earthquake, tsunami, volcanic activity, landslides and Glacial Lake Outburst Flood. The bachelor thesis also contains a chapter on remote sensing and its possible application in the prevention of risk processes or monitoring. The bachelor thesis is closed by a chapter with author's own assessment of these processes. The methodology of work is based on a review of foreign literature. Keywords: risk geomorphological processes, Patagonia, earthquake, tsunami, volcanism, landslides, GLOF, Remote Sensing
|
|
|
Green communication: case study of the outdoor clothing company Patagonia Inc.
Krchová, Eva ; Koudelková, Petra (advisor) ; Hejlová, Denisa (referee)
Tato diplomová práce, Byla, nebyla jedna firma, a ta se jmenovala Patagonie, se zabývá případovou studií outdorové značky Patagonia a jejích aktivistických transmediálních obsahových projektů, s důrazem na nejaktuálnější kampaň značky: Zachraňte Bears Ears. Park Bears Ears je obdobou české chráněné krajinné oblasti, jejíž status ale současný americký prezident Donald Trump nedávno neautorizovaně sebral. Zatímco se firma zabývá výrobou a prodejem kvalitního outdoorového oblečení, tak se Patagonie ve stejnou dobu také aktivně angažuje do veřejného dění. Firma informuje své zákazníky zejména o stavu životního prostředí prostřednictvím svćyh multimediálních poutavých příběhů nesoucí prvky žurnalistiky. Patagonie usiluje o podněcování veřejnosti a ostatních firem zapojovat se do občanské společnosti, změnit spotřební chování nejen zákazníků, ale i výrobců, s konec̆ným cílem udržitelné ochrany této křehké planety, kterou my všichni obýváme. Patagonie potvrzuje své altruistické odhodlání prostřednictvím svého oficiálního firemního hesla: "Jsme v businessu, abychom zachránili planetu."
|
|
|
Inventory and analysis of risky geomorphological processes in the Chilean part of Patagonia
Chotěborová, Markéta ; Vilímek, Vít (advisor) ; Engel, Zbyněk (referee)
Area of interest of this bachelor thesis is part of Chilean Patagonia. It is spread across the Chilean regions of Los Lagos, Aysén and Magallanes. The local environment is influenced by several phenomena, which act separately and predominantly together. Local tectonic processes, especially the subduction of the Nazca Plate under the South American Plate, affect the risky processes of earthquakes (and subsequent tsunamis and landslides) and volcanism. The tectonics also contributed to the creation of a local relief, which, together with the climate (and its changes), also affected the specific type of floods called Glacial Lake Outburst Flood (GLOF). These geomofphological processes take place on earth for millions of years, but some of them became to be risky at the moment people began settling in territory of their influence. Keywords: risk geomorphological processes, Patagonia, earthquake, tsunami, volcanism, landslides, GLOF
|
|
|
INVENTORY AND ANALYSIS OF RISK GEOMORPHOLOGICAL PROCESSES IN THE CHILEAN PART OF PATAGONIA USING RS
Chotěborová, Markéta ; Vilímek, Vít (advisor) ; Šefrna, Luděk (referee)
Area of interest of this bachelor thesis is part of Chilean Patagonia. It is spread through the Chilean regions of Los Lagos, Aysén and Magallanes. The local landscape consists of crystal blue lakes, glaciers, fjords and snow-capped mountains. Creating this landscape is involved in many endogenous and exogenous geomorphological processes. These processes take place on earth for millions of years, some of them, become to be risky when people began settling in this territory. Among these risk geomorphological processes in the countries of interest include earthquake, tsunami, volcanic activity, landslides and Glacial Lake Outburst Flood. The bachelor thesis also contains a chapter on remote sensing and its possible application in the prevention of risk processes or monitoring. The bachelor thesis is closed by a chapter with author's own assessment of these processes. The methodology of work is based on a review of foreign literature. Keywords: risk geomorphological processes, Patagonia, earthquake, tsunami, volcanism, landslides, GLOF, Remote Sensing
|
guest ::
