Regeneration ability of
            <i>Heracleum mantegazzianum</i>
            and implications for control.

Pyšek, Petr; Perglová, Irena; Krinke, Lukáš; Jaros̆ı́k, Vojtĕch; Pergl, Jan; Moravcová, Lenka; Cock, Matthew J.W.; Nentwig, Wolfgang; Ravn, Hans Peter

doi:10.1079/9781845932060.0112

Cited by 13 publications

(12 citation statements)

References 8 publications

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“…Tissue removal is therefore more efficacious when fruits on the terminal umbel are almost fully developed and those on secondary umbels are at full blossom . These results also emphasize need for repeated visits and a second cut of regenerating reproductive structures after which the fruits were reported not to develop (Otte and Franke 1998;Pyšek et al 2006).…”

Section: Source Of Variationmentioning

confidence: 66%

Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum

et al. 2006

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Response of the invasive speciesHeracleum mantegazzianum to experimental removal of tissues was studied in the Czech Republic. The study aimed at determining (i) how efficiently plants respond, in terms of quantity and quality of produced fruit, to the removal of different amounts of generative and/or vegetative tissues; and (ii) whether regeneration ability depends on the time of treatment. Total number of fruits and their mean weight were reduced by removal of leaves, but germination percentage and rate of germination did not differ from control. More vigorous individuals compensated for the loss of tissues to a higher degree, and the advantage of being larger increased with severity of the treatment. Of 40 plants with umbels completely removed, 18 (45.0%) regenerated and produced on average 103.4 ± 220.1 (mean ± SD) fruits. Total fruit numbers and total fruit weight of regenerating plants significantly differed neither among treatments nor from the control, but some treatments resulted in poorer germination compared to the control. Umbels removed from plants at the beginning of fruit development and left at the locality produced 18.6% of fruit numbers of control plants, and 24% of these seeds germinated. Control by removing umbels from plants must ensure that they are collected and destroyed. From the management viewpoint, there is a trade-off between later umbel removal, resulting in more efficient reduction in fecundity but necessity to handle more developed fruits, and early treatment, leading to a high regeneration, that produces seed of sufficient quantity and very little affected in terms of quality.

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Section: Source Of Variationmentioning

confidence: 66%

Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum

et al. 2006

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“…Further information on the vegetation and the characteristics of the study sites, as well as a detailed description of the method used to process soil samples after collection are provided in Gioria (2007) and Gioria & Osborne (2008). General information on the ecology and biology of H. mantegazzianum can be found in Tiley et al (1996) and Pyšek et al (2007).…”

Section: Methodsmentioning

confidence: 99%

Assessing the impact of plant invasions on soil seed bank communities: use of univariate and multivariate statistical approaches

Gioria

Osborne

2009

J Vegetation Science

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Questions: Are soil seed banks affected by invasions of alien plants? How can we rigorously assess alterations in seed bank communities associated with invasive species and account for the high spatial variability of seed bank data? How do multivariate approaches compare with more traditional approaches based on analysis of variance? Location: Three riparian sites, Ireland. Methods: A protocol based on a combination of multivariate techniques was used to characterize soil seed bank communities associated with the herbaceous invasive species Heracleum mantegazzianum in May and October. Permutational multivariate analysis of variance (PERMANOVA) was used to test the effects of the factors “invasion”, “site”, “plot” and “depth” on the soil seed bank, while multivariate analysis of dispersion (PERMDISP) provided a measure of the variability of seed bank data at different spatial scales. Similarity percentages analysis (SIMPER) was used to identify the species that contributed most to the differences between invaded and uninvaded communities. A comparison between the results of PERMANOVA and ANOVA analyses was also made. Results: The composition of seed bank communities invaded by H. mantegazzianum differed significantly from that of uninvaded seed banks. Invaded seed banks were less diverse and had reduced abundance, and were dominated by only a few species, such as Urtica dioica and Juncus effusus. Such patterns were recorded at each of three depth categories, indicating that invasive plants can affect both the transient and the more persistent component of the soil seed bank. Seed bank variability was significantly higher within uninvaded areas, supporting the notion that invasions tend to lead to more homogeneous communities. Conclusion: The analytical protocol used in this study was effective in quantifying the effect of plant invasions, at different spatial scales, providing a statistically robust analysis of alterations in soil seed bank communities. Compared to ANOVA, this protocol provided more biological information and was more appropriate for analysis of the data. This approach is therefore recommended in soil seed bank and invasion ecological studies.

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“…One way to inhibit the further spread of tall invasive Heracleum, such as Tromsø palm or H. mantegazzianum, is to cut the umbels when they begin to flower to prevent the plant from setting seeds (Nielsen et al 2005). However, while no such research has been done on H. persicum, research with H. mantegazzianum showed that, even if umbels are cut before seeds ripen, they are still able to develop viable seeds (Pyšek et al 2007a), so appropriate disposal of the umbels is important (Pyšek et al 2007b). To remove invasive Tromsø palm by mowing and cutting of the stems, it is important that the plants are treated at least three times during the growing season (Renna 2002) for not less than 5 yr, which exhausts the plant until it finally dies (Nielsen et al 2005).…”

Section: Management Implicationsmentioning

confidence: 99%

“…Management strategies should therefore incorporate public perception of invasive species (Aitken et al 2009;McNeely 2001b;Qvenild et al 2014;Rotherham and Lambert 2011;van Wilgen 2012). Daab and Flint (2010) and Fischer and Charnley (2012) found that among private (forest) landowers, those who said they were bothered by invasive plants were significantly more likely to take action against them on their properties.…”

Section: Management Implicationsmentioning

confidence: 99%

Public Reaction to Invasive Plant Species in a Disturbed Colorado Landscape

Daab

Flint

2010

Invasive plant sci. manag.

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Invasive plant species degrade ecosystems in many ways. Controlling invasive plants is costly for government agencies, businesses, and individuals. North central Colorado is currently experiencing large-scale disturbance, and millions of acres are vulnerable to invasion because of natural and socioeconomic processes. Mountain pine beetles typically endemic to this region have reached epidemic proportions, with up to 80% tree mortality, which opens growing space for invasive plants. In socioeconomic terms, the popularity of this amenity-rich region for tourists and in-migrants has resulted in increased development, often bordering the public land that is common in the American West. Increased recreational access and the construction of new roads and infrastructure disturb ecosystems in an increasingly fragmented landscape. A survey was mailed to more than 4,000 households in a five-county region of north central Colorado to gauge public awareness and attitudes regarding invasive plant species, helping to illuminate whether the public shows a capacity to help land managers detect and respond to invasive plants before they profoundly alter the local ecosystem. Although 88% of respondents had heard or read about invasive plant species, far fewer were familiar with specific, locally targeted species, and fewer still had taken any action to control these species. The overall awareness and concern about invasive plants in the area indicated a capacity for more public participation in management.

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Regeneration ability of Heracleum mantegazzianum and implications for control.

Cited by 13 publications

References 8 publications

Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum

Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum

Assessing the impact of plant invasions on soil seed bank communities: use of univariate and multivariate statistical approaches

Public Reaction to Invasive Plant Species in a Disturbed Colorado Landscape

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