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Invasion of Rumex alpinus in Krkonoše mountains
Naglová, Šárka ; Münzbergová, Zuzana (advisor) ; Matějček, Tomáš (referee)
The issue of plant invasion and of spreading alien species is a serious problem for all ecosystems. The problem is even bigger if the invasion takes place in the national park, or other important areas, such as the Giant Mountains. The Unique species diversity is undermined by non-native species, which often significantly suppress indigenous communities. Not always is this problem early and effectively regulated, or at best completely stoped, especially because each invasion is needed to be access individually, gather enough data and observations and determine an effective strategy to combat invasive species. There has been a lot of analysis written about the invasion of Rumex alpinus already, so my job is to summarize the results, determine whether the species distribution prediction was correct and if possibly determine the next steps in the fight against this invasive plant in the Giant Mountains. Key words: Rumex alpinus, invasion, The Giant (national park), the spread of the species
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Long distance dispersal of Rumex alpinus
Řičařová, Veronika ; Münzbergová, Zuzana (advisor) ; Hadincová, Věroslava (referee)
Long-distance dispersal of Rumex alpinus was studied in the Giant Mountain in the National Park. The invasion of R. alpinus is there kind of problem. The work builds on a thesis from year 2007 (20007 Červenková), in which was made the model of the invasion of R. alpinus in the area of the Giant Mountain. The measurements of the seeds spread take place at four localities, three of them were for measuring of water dispersal and one was for measuring of winter dispersal. Anemochory was measured using traps in the meadow up to a distance of 50 m. The seeds were dispersed by wind to a distance of 20 meters. Hydrochory was measured using a network's traps in the streams up to 100 m. The largest measured water dispersal was 100 m. Hydrochory therefore proved to be an important factor, which influenced the invasion of R. alpinus. The storms and flood had the great influence on the hydrochory and anemochory. The prediction exponential curves were compiled from the data about the wind dispersal. The curves express the spread to more than a measured distance. The field dispersion curves were compared with theoretical curves, which were used in the model of the invasion from 2007. It turned out that the theoretical curves overestimate the spread of R. alpinus by wind. The dispersion of seeds was underestimated in the...
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Invasion of Rumex alpinus in Krkonoše mountains
Naglová, Šárka ; Münzbergová, Zuzana (advisor) ; Matějček, Tomáš (referee)
The issue of plant invasion and of spreading alien species is a serious problem for all ecosystems. The problem is even bigger if the invasion takes place in the national park, or other important areas, such as the Giant Mountains. The Unique species diversity is undermined by non-native species, which often significantly suppress indigenous communities. Not always is this problem early and effectively regulated, or at best completely stoped, especially because each invasion is needed to be access individually, gather enough data and observations and determine an effective strategy to combat invasive species. There has been a lot of analysis written about the invasion of Rumex alpinus already, so my job is to summarize the results, determine whether the species distribution prediction was correct and if possibly determine the next steps in the fight against this invasive plant in the Giant Mountains. Key words: Rumex alpinus, invasion, The Giant (national park), the spread of the species
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Long distance dispersal of Rumex alpinus
Řičařová, Veronika ; Münzbergová, Zuzana (advisor) ; Hadincová, Věroslava (referee)
Long-distance dispersal of Rumex alpinus was studied in the Giant Mountain in the National Park. The invasion of R. alpinus is there kind of problem. The work builds on a thesis from year 2007 (20007 Červenková), in which was made the model of the invasion of R. alpinus in the area of the Giant Mountain. The measurements of the seeds spread take place at four localities, three of them were for measuring of water dispersal and one was for measuring of winter dispersal. Anemochory was measured using traps in the meadow up to a distance of 50 m. The seeds were dispersed by wind to a distance of 20 meters. Hydrochory was measured using a network's traps in the streams up to 100 m. The largest measured water dispersal was 100 m. Hydrochory therefore proved to be an important factor, which influenced the invasion of R. alpinus. The storms and flood had the great influence on the hydrochory and anemochory. The prediction exponential curves were compiled from the data about the wind dispersal. The curves express the spread to more than a measured distance. The field dispersion curves were compared with theoretical curves, which were used in the model of the invasion from 2007. It turned out that the theoretical curves overestimate the spread of R. alpinus by wind. The dispersion of seeds was underestimated in the...
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