National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
The spread of invasive neophytes in the riparian vegetation of the Lužnice River
Eliášová, Kateřina ; Matějček, Tomáš (advisor) ; Hrdina, Aleš (referee)
This thesis studies the spread of invasive neophytes along the South Bohemian Lužnice River. The literature search deals with plant invasions, floodplains and the area of interest. The riparian vegetation along the Lužnice River was mapped with emphasis on 17 taxons of invasive neophytes. The mapping was realized in four sections that were 3-5 km long. The results are compared with the state ascertained by monitoring in the same location in 2008. The results indicate a general increase of invasions and an intensive spread of Impatiens parviflora since the previous mapping. Generally widespread invasive taxa in the studied area are Impatiens parviflora and Impatiens glandulifera of the herbaceous plants. The occurence of Robinia pseudacacia of the woody plants is also common. Other observed taxa occur only locally or in smaller amounts. Keywords: IAS, riparian vegetation, plant invasion, vegetation mapping, watercourse, vegetation change
Comparison of model protected areas - evaluation of the quality and connectivity of habitats
Hrdina, Aleš ; Romportl, Dušan (advisor) ; Matějček, Tomáš (referee)
This diploma thesis deals with the biodiversity hotspots - high biodiversity areas with a large proportion of endemic species, which also has already lost a significant part of its natural habitat. The historical development of the biodiversity hotspots concept is described, all 34 hotspots is characterized, species diversity and endemism of plants and animals, potential natural vegetation is analysed, as well as threats, anthropogenic impact and conservation considering protected areas, categories I-IV areas of the IUCN protected areas management system, and national parks. A complete digital vector database of national parks was created. Qualitative importance of each hotspot is evaluated using the Myers method and areas of the world with the highest conservation priority are identified. Keywords: biodiversity hotspots, habitat quality, protected areas, national parks
The comparation of world protected areas
Hrdina, Aleš ; Matějček, Tomáš (advisor) ; Šenová, Vendula (referee)
This thesis deals with the origin and development of protected areas, conservation organisations and systems of protected area management categories. It focuses on the 1994 system and its modification in 2008. The categories are defined and compared. Development of the number and area of protected areas and national parks in the world is studied, and also pros and weaknesses of the system of protected area management categories. The main objective is to create a database of national parks in the world, which includes the 3,227 areas, having an area of over 5,000,000 square kilometers. Part of the thesis is also an analysis of national parks according to continents.

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2 Hrdina, Adam
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