The impact of invasive knotweed species (Reynoutria spp.) on the environment: review and research perspectives

Lavoie, Claude

doi:10.1007/s10530-017-1444-y

Cited by 68 publications

(63 citation statements)

References 80 publications

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“…However, these results should be considered with caution, given the number of published studies (experiments and in situ) that have found only negative effects of Fallopia spp. on the biomass of competing species (see [20]). We did not find a satisfactory explanation of the pattern on root biomass in H. lupulus.…”

Section: Impact Of Knotweed On Competing Species: From Little Negativmentioning

confidence: 99%

“…In Nentwig et al's list of the worst alien species in Europe [19], which was based on a generic impact scoring system (GISS), Fallopia japonica is ranked 37th out of 86 total species and 12th among plant species. Several studies (reviewed in [20]) have shown that Japanese knotweeds s.l. have major impacts on ecosystems, such as alterations of soil chemistry, leading to increases or decreases in the abundance of soil microorganisms (amoebas or bacteria, respectively), and a disturbance to nutrient cycling [10,11].…”

Section: Introductionmentioning

confidence: 99%

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In Nitrate-Rich Soil, Fallopia x bohemica Modifies Functioning of N Cycle Compared to Native Monocultures

et al. 2020

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The effects of invasive species at the ecosystem level remain an important component required to assess their impacts. Here, we conducted an experimental study with labeled nitrogen in two types of soil (low and high nitrate conditions), investigating the effects of (1) the presence of Fallopia x bohemica on the traits of three native species (Humulus lupulus, Sambucus ebulus, and Urtica dioica) and (2) interspecific competition (monoculture of the invasive species, monoculture of the native species, and a mixture of invasive/native species) on nitrification, denitrification, and related microbial communities (i.e., functional gene abundances). We found that the species with the higher nitrate assimilation rate (U. dioica) was affected differently by the invasive species, with no effect or even an increase in aboveground biomass and number of leaves. F. x bohemica also decreased denitrification, but only in the soil with high nitrate concentrations. The impacts of the invasive species on nitrification and soil microorganisms depended on the native species and the soil type, suggesting that competition for nitrogen between plants and between plants and microorganisms is highly dependent on species traits and environmental conditions. This research highlights that studies looking at the impacts of invasive species on ecosystems should consider the plant–soil–microorganism complex as a whole.

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Section: Impact Of Knotweed On Competing Species: From Little Negativmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In Nitrate-Rich Soil, Fallopia x bohemica Modifies Functioning of N Cycle Compared to Native Monocultures

et al. 2020

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“…plants change the abundance, diversity, and structure of plant and animal communities (Hejda et al 2009;Lenda et al 2013), and often considerably modify physicochemical and biological properties of the soil environment, thereby potentially affecting key ecosystem processes (Vilà et al 2011;Castro-Díez et al 2014;Majewska et al 2015;Stefanowicz et al 2016;Zubek et al 2016;Broadbent et al 2017;CastroDíez and Alonso 2017;Lavoie 2017;Rodríguez-Caballero et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Differential influence of four invasive plant species on soil physicochemical properties in a pot experiment

et al. 2017

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Purpose This study compared the effects of four invasive plants, namely Impatiens glandulifera, Reynoutria japonica, Rudbeckia laciniata, and Solidago gigantea, as well as two native species-Artemisia vulgaris, Phalaris arundinacea, and their mixture on soil physicochemical properties in a pot experiment. Materials and methods Plants were planted in pots in two loamy sand soils. The soils were collected from fallows located outside (fallow soil) and within river valley (valley soil) under native plant communities. Aboveground plant biomass, cover, and soil physicochemical properties such as nutrient concentrations, pH, and water holding capacity (WHC) were measured after two growing seasons. Discriminant analysis (DA) was used to identify soil variables responsible for the discrimination between plant treatments. Identified variables were further compared between treatments using one-way ANOVA followed by Tukey's HSD test. Results and discussion Plant biomass, cover, and soil parameters depended on species and soil type. DA effectively separated soils under different plant species.

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“…Op gunstige standplaatsen kunnen invasieve duizendknopen de biotische en abiotische samenstelling van ecosystemen veranderen (Lavoie, 2017). Vooral de impact op de inheemse vegetatie is zeer groot.…”

Section: Impact Op Soorten En Impact Op Het Ecosysteemunclassified

“…Deze wordt op termijn verdrongen tot er niets anders overblijft van dan invasieve duizendknoop. Een studie naar het voorkomen van enkele de soortengroepen in duizendknoophaarden wees uit dat veel inheemse diersoorten niet kunnen overleven in deze situatie (Lavoie, 2017). De dominante aanwezigheid van duizendknoop in een groene zone of natuurgebied kan de vooropgestelde biodiversiteitsdoelen in het gedrang brengen.…”

Section: De Biodiversiteitsdoelen Van Het Terrein Komen In Het Gedrangunclassified

Invasieve duizendknoop in Vlaanderen: een kader voor goed beheer

Thoonen¹,

Willems

2018

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The impact of invasive knotweed species (Reynoutria spp.) on the environment: review and research perspectives

Cited by 68 publications

References 80 publications

In Nitrate-Rich Soil, Fallopia x bohemica Modifies Functioning of N Cycle Compared to Native Monocultures

In Nitrate-Rich Soil, Fallopia x bohemica Modifies Functioning of N Cycle Compared to Native Monocultures

Differential influence of four invasive plant species on soil physicochemical properties in a pot experiment

Invasieve duizendknoop in Vlaanderen: een kader voor goed beheer

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