Invasion by Heracleum mantegazzianum: the role of time and spatial scales

Name: Invasion by Heracleum mantegazzianum: the role of time and spatial scales
Researchers: Pergl Jan (researcher)
Project Type: B - national grants (GA ČR, GA AVČR)
Realization from: 2008
Realization to: 2011
Summary: The project is focussed on the population dynamics of an invasive plant species Heracleum mantegazzianum assessed at various spatial and temporal scales. Information on (i) population dynamics in permanent plots (10 m2, 10 years), (ii) the history of invasion in the Slavkovský les region reconstructed by using aerial photographs (ca 600 km2, 50 years) and (iii) long-term persistence in invaded sites in the Czech Republic (ca 78,000 km2, 150 years) will be combined to explore dynamics of spread at different scales, as well as the role of long-distance dispersal and historical changes in land-use. Data will also provide basis for modelling the response of the species to the variety of control measures, which will result in suggesting the most appropriate management of this invasive species. By using this model system, the project will also contribute to general understanding of the metapopulation dynamics of monocarpic perennial plants and determinants of colonization processes.

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