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Factors threatening European raptors and actions for their conservation
Žandová, Denisa ; Reif, Jiří (advisor) ; Sedláček, Ondřej (referee)
Due to their visual appearance and general size, raptors are, among a general public, revered group of animals. This also, brings them more attention in sphere of animal conservation. Despite protection, which is given to them, raptors are among other birds severely endangered with their population decreasing in multiple places across Europe. The most frequent factors, which endenger raptors, are habitat loss, poaching, high-voltage powerlines, wind turbines and lead poisoning. This paper focuses on, describtion of methods of raptor protection, determination of efective protection measures, as well as determination of new useful solutions applicable for protection improvement. Studies has shown that in individual areas of Europe are endengering factors diferent than in others. Species with same ecological requirements and a way of life are endangered by same factors. The approach to these issues also changes depending on a country and some potential factors are not examined enough, yet. Thus it is of a great importance to spend more time on resolving these issues. Keywords: raptors, biodiversity conservation, risk factors, habitat loss, lead poisoning, poaching
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Pasture of horses as an essential tool in biodiversity conservation
Dudková, Andrea ; Malíček, Jiří (advisor) ; Sedláček, Ondřej (referee)
In recent decades, the approach of active management, preventing overgrowth and simplifying the species composition of non-forest biotopes, has dominated in nature conservation. Dominant plants, suppressing competitively weaker species, are therefore reduced for example by grazing of large herbivores. It turns out that horse grazing has considerable potential for enhancing biodiversity. The aim of this bachelor's thesis was to summarize the main aspects of horse grazing based on literature research and come to a prediction of its future use in nature conservation. Studies on the use of horse grazing in biodiversity conservation show that it works well to suppress competitively strong grasses and supports the presence of flowering dicots and associated insects. The disadvantage of grazing horses is that they do not consume woody plants and thus cannot suppress the growth of bushes. On larger areas (>20 ha), year-round wild horse grazing is used, while domestic horses are suitable for seasonal grazing on smaller sites. Due to the positive results of horse grazing in promoting biodiversity, the more successful suppression of competitively strong grasses compared to other herbivores and the lower level of human effort compared to mowing, it can be expected that cases of using horse grazing in nature...
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Biodiversity of green roofs
Matoušková, Kateřina ; Sedláček, Ondřej (advisor) ; Šípek, Petr (referee)
Green roofs offer interesting multifunctinaly solutions to many problems at once. In a small area they bring benefits to people and nature. They thermally insulate buildings, improve the local microclimate and reduce the city's heat island efect. Green roofs improve air quality and also help retain water in the landscape. In combination with solar panels and retention tanks, green roofs can contribute to the modern trend of building green - sustainable - buildings. Green roofs can be used for growing food sources and for relaxation as well. Wild plants can spontaneously colonize green roofs and thereby expand their habitats in cities. The plants create habitats for many animals (especially invertebrates) and provide nectar sources to pollinators. Except food habitats, they offer birds habitat for nesting and resting place during their migration. The aim of this thesis was to evaluate the contribution of green roofs to urban biodiversity. At present, howewer, most scientific studies deal with the advantges of green roofs in connection with enviromental protection or the technical side. A small part of the studies examines the biodiversity of green roofs. My goal was to find out which factors influence a biodiversity of green roofs the most and to design an ideal roofs solution with the greatest...
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Prediction of changes in landscape and biodiversity development as important factors in maintaining the current state of forest ecosystems
Cudlín, Ondřej ; Pechanec, V. ; Purkyt, Jan ; Štěrbová, Lenka ; Holá, Š. ; Cienciala, E. ; Cudlín, Pavel
We used a combination of several analytical tools to analyse change and predict the land use, carbon storage and biodiversity assessment in the cultural landscape. First, the GIS layer, consisted of Habitat mapping (NCA CR 2014) for 138 natural and close to nature habitats and Corine LC for 54 more anthropically influenced habitats, was created. The Land Change Modeler (scenario type - business as usual, pixel resolution 500 m) was used to predict the development of land cover on the basis of data comparison in several historical periods (Corine LC from 1990, 2000, 2006, 2012). We also did prediction of carbon storage under climate change in model InVEST 3.0 – carbon. Changes in carbon storage were calculated from four carbon pools: above-ground biomass, below-ground biomass, necromass and soil organic carbon. To assess and predict the changes in biodiversity in the \nforest-agriculture landscape we used the model GLOBIO 3, which works with five basic driving forces for biodiversity loss: land use, infrastructure, fragmentation of territory, atmospheric nitrogen deposition and climate change. Last used model Marxan enables us to select up to now unprotected areas with a high degree of biodiversity and naturalness of habitats for environmentally friendly agriculture and forestry management.\n
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The effect of different management strategies on the dynamics of saproxylic insect habitats
ŠEBEK, Pavel
The thesis concerns studies on habitats utilized by insects associated with deadwood. It presents a review of current issues in the conservation of saproxylic biodiversity. The effects of active intervention on temperate lowland woodland habitats, such as pollarding or coppicing, are evaluated in terms of their suitability for saproxylic communities and other groups. Further, the importance of open-grown trees for saproxylic diversity is assessed.
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Environmental knowledge and attitudes: does it differ in urban and rural areas?
Sané, Mathy ; Hejcmanová, Pavla (advisor) ; Votava, Jiří (referee)
Environmental education plays an important role in the preservation and protection of biodiversity but also on the environment. It is for this purpose that the thesis aimed to assess the environmental knowledge and attitudes in school children in urban areas and those in rural areas in three regions of Senegal. This evaluation is focused on interviews with teachers and questionnaires administered to children. On the basis of 786 questionnaires collected in 19 schools including 7 in rural area (317 responding children) and 12 in urban areas (448 responding children), I found that children in rural area had higher environmental knowledge in comparison to those in urban areas, and it was also higher in boys than in girl with the same pattern in rural and urban areas. The level of environmental knowledge did not depend on the age of responding children. Concerning environmental attitudes, children expressed mostly similar attitudes in rural and urban areas and these were mostly negative towards environment. Regarding such results, it is recommendable to address the environmental issues through environmental education programs in order to get better knowledge and to build pro-environmental attitudes. The informal environmental education programs can provide opportunities for schools to improve their knowledge, interests, motivation and encouraged to adopt new attitudes towards the environment. The environmental education increases with theoretical and practical experience.
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Tropical rainforests in modern civilization
Suchanová, Veronika ; Lisa, Aleš (advisor) ; Dvořák, Antonín (referee)
This thesis deals with the selected issues regarding tropical rainforests in modern civilization. It explains what the tropical rainforest is and where it is located. The thesis points at the importance of the tropical rain forestry, and warns of increasing threats primarily due to deforestation. The thesis also shows possible approaches to deal with the issue and presents a practical example of a functional project in real life.
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