Effects of fruit position on fruit mass and seed germination in the alien species Heracleum mantegazzianum (Apiaceae) and the implications for its invasion

Moravcová, Lenka; Perglová, Irena; Pyšek, Petr; Jaros̆ı́k, Vojtĕch; Pergl, Jan

doi:10.1016/j.actao.2005.01.004

Cited by 57 publications

(80 citation statements)

References 39 publications

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“…Such robust spread of H. sosnowskyi is mostly determined by certain advantageous biological characteristics: intensive light competition due to giant height and diameter (3 m); high seed germination (78 ± 0.15) and seedling growth in early spring before the start of vegetation of other plants; high survival of juvenile individuals; just one seedling is enough to proceed new invasion; high seed production and penetration into new territories. Similar competition outcomes are specified for other invader species, e. g. H. mantegazzianum (Moravcová et al, 2005). Furthermore, the invader is able to form developed plantations (0.5 ha) of different size and density which expand by 1 200 m -2 per year.…”

Section: Discussionmentioning

confidence: 66%

Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania

Baležentienė¹,

Stankevičienė²,

Snieškienė³

2014

Ekologija

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A dangerous invader Heracleum sosnowskyi successfully spreads along roads, riverbanks and has naturalized in Lithuanian habitats and plant communities. It out-competes native species, thus changing ecosystems diversity, pushing autochthone species from native habitats, decreasing biodiversity and transforming landscape. This paper aims to evaluate H. sosnowskyi spread and establishment on habitat scale in Lithuania. Data on abundance, spatial distribution and contribution of H. sosnowskyi to plant biodiversity were collected from natural and anthropogenic habitats. Another objective was to evaluate the speed of spread in an infected landscape. Local assessments of the abundance of H. sosnowskyi by estimating variables of spatial penetrating and establishment in native plant communities on an individual block scale were carried out. Four population types with different density and coverage of species individuals were found. Species abundance was structured according to the distance from highway and significantly correlated (r = 0.7) with native plant community type. This species finds opportunities for colonization and reproduction resulting in decrease of natural diversity.

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Section: Discussionmentioning

confidence: 66%

Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania

Baležentienė¹,

Stankevičienė²,

Snieškienė³

2014

Ekologija

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“…H. mantegazzianum does not reproduce vegetatively, but only by seeds (Pysek and Pysek, 1995;Tiley et al, 1996). Moravcovà et al (2005) found that 90% of H. mantegazzianum seeds germinated regardless of the vigour of the mother plant or where it was produced on the plant. The authors concluded that the high fecundity and opportunistic behaviour associated with high percentages of germination of coldstratified seed, as well as high seed production compared to other species (Pysek and Pysek, 1995;Tiley et al, 1996), may account for the successful invasion of H. mantegazzianum in Central Europe, where the species has negative effects on biodiversity, the economy and public health.…”

Section: Mechanism Of Invasion and Ecosystem Attribute That Can Be Momentioning

confidence: 99%

Impacts of Solidago Gigantea, Prunus Serotina, Heracleum Mantegazzianum and Fallopia Japonica Invasions on Ecosystems

KOUTIKA¹

2011

Appl Ecol Env Res

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Abstract. The world's biodiversity and ecosystems are threatened by the invasion of alien plant species. They have been found to impact the structure in function of ecosystems in temperate, tropical and subtropical areas (Holm et al., 1977;Pysek, 1997;Byers et al., 2002;Ehrenfeld, 2003). We reviewed studies to summarize the impact of four plant species invasions on European ecosystems: Solidago gigantea, Prunus serotina, Heracleum mantegazzianum and Fallopia japonica, because they are amongst a number of invasive species which have spread over the last centuries, and are still increasing their range in Europe. They cause negative impacts on both native biodiversity and ecosystem functioning (including productivity, nutrient cycling and soil organic matter dynamics).

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“…In the Czech Republic, laboratory studies by Moravcová et al (2005) found the mean germination rate of greater than 90% under optimal conditions. Seedling mortality is, however, also high.…”

Section: Reproductionmentioning

confidence: 99%

“…Although no light requirements have been demonstrated for germination , best emergence in the field has been observed in the open or under light vegetative cover in the United Kingdom (Tiley et al 1996). Most seeds geminate from a depth of less than 5 cm, although emergence from 10 cm has been observed (Krinke et al 2005;Moravcová et al 2005). Seeds will rot in flooded soil.…”

Section: Reproductionmentioning

confidence: 99%

The Biology of Invasive Alien Plants in Canada. 4. Heracleum mantegazzianum Sommier & Levier

Page

Wall

Darbyshire³

et al. 2006

Can. J. Plant Sci.

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Heracleum mantegazzianum Sommier & Levier. Can. J. Plant Sci. 86: 569-589. Heracleum mantegazzianum (giant hogweed) is an invasive alien plant of management concern in southern Canada where it has escaped from horticulture and established and spread in natural, ruderal, and agricultural ecosystems. It poses a threat to natural ecosystems and human health, and is also a weed in agricultural and urban areas. It is a member of the Carrot family (Apiaceae) and is closely related to the native species Heracleum maximum Bartram (cow-parsnip). It is a monocarpic perennial, which generally flowers in its 3rd or 4th year. Large size, leaf shape, dark reddish pigments in patches on stems and petioles, and fruit characteristics readily distinguish H. mantegazzianum from other plants in Canada. It is increasingly common in riparian areas, floodplains, and forest edges in or near urban areas in southwestern British Columbia and southern Ontario. Based on herbarium specimens, H. mantegazzianum was first recorded in Ontario in 1949, British Columbia in 1964, Nova Scotia in 1980, Quebec in 1990, and New Brunswick in 2000. The development of dense stands of H. mantegazzianum can also reduce the richness of native plants. Contact with H. mantegazzianum can cause phytophotodermatitis, a serious skin inflammation caused by UV photo-activation of furanocoumarins present in the sap. Control methods include herbicide application, mechanical cutting, and animal grazing, but strategies to address seed dispersal and re-establishment from dormant seed must also be adopted. Widespread establishment in southern Canada suggests that eradication is unlikely. However, range expansion and rapid population growth can be prevented through strategic management including public education. Heracleum mantegazzianum (berce du Caucase) est une espèce exotique envahissante qui préoccupe les producteurs du sud du Canada, car la plante s'est échappée des jardins pour coloniser les écosystèmes naturels, rudéraux et agricoles. En plus d'être une adventice dans les régions agricoles et urbaines, l'espèce s'avère une menace pour les écosystèmes naturels et la santé humaine. Membre de la famille de la carotte (Apiacées), la berce du Caucase est étroitement apparentée à l'espèce indigène Heracleum maximum Bartram (berce laineuse). Cette vivace monocarpienne fleurit habituellement la troisième ou la quatrième année. Il est facile de la distinguer des autres plantes à cause de sa grande taille, de la forme de ses feuilles, des taches rouge foncé sur la tige et les pétioles et des fruits très caractéristiques. On la trouve de plus en plus dans les habitats riverains, les plaines inondables et la lisière des forêts, ou à proximité des zones urbaines dans le sud-ouest de la ColombieBritannique et le sud de l'Ontario. D'après les spécimens conservés dans les herbiers, H. mantegazzianum a été identifiée pour la première fois en 1949 en Ontario, en 1964 en Colombie-Britannique, en 1980 en Nouvelle-Écosse, en 1990 au Québec et en 2000 au Nouveau-Brunswick. Le développem...

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Effects of fruit position on fruit mass and seed germination in the alien species Heracleum mantegazzianum (Apiaceae) and the implications for its invasion

Cited by 57 publications

References 39 publications

Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania

Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania

Impacts of Solidago Gigantea, Prunus Serotina, Heracleum Mantegazzianum and Fallopia Japonica Invasions on Ecosystems

The Biology of Invasive Alien Plants in Canada. 4. Heracleum mantegazzianum Sommier & Levier

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