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Click here to go back Details of this species in Czech Republic Status: Alien Invasiveness: Invasive Occurrence: Established Source: Mullerova et al, 2005; Perglova et al, 2006; Hejda et al, 2009; Westbrooks, 1991; EPPO, 2006 Arrival Date: Introduction: Intentional Species Notes for this Location: Heralceum mantegazzianum was introduced to the Czech Rebublic as a garden ornamental in 1862 (Mullerova et al, 2005). It was introduced in the park of a chateau at Lázně Kynžvart and has heavily invaded Slavkovský les (Perglova et al, 2006).. It is recorded from over 600 localities in the Czech Republic and continues to spread (Nehrbass et al, 2006). It popularity as an ornamental is the principal factor contributing to its spread (Pysek, 1991). Management Notes for this Location: Location Notes: Impacts: Ecosystem change: Heracleum mantegazzianum increases the erosion of river banks after plants dieback in the winter (Pysek, 1991). Reduction in native biodiversity: Heracleum mantegazzianum forms monospecific stands which reduce species diversity in the Czech Republic (Hejda et al, 2009; Nehrbass et al, 2006; Pysek, 1991). Last Modified: 23/02/2011 3:18:59 p.m.