Invasion by Fallopia japonica alters soil food webs through secondary metabolites

Abgrall, Corentin; Forey, Estelle; Mignot, L.; Chauvat, Matthieu

doi:10.1016/j.soilbio.2018.09.016

Cited by 45 publications

(43 citation statements)

References 72 publications

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“…Omnivores and predators tend to be more sensitive to environmental changes (Bongers, 1990;Yeates et al, 1993, Ferris et al, 2001 because of their longer generation times and lower fecundity. In our study, the abundance of omnivores was significantly lower in the invaded than in the adjacent uninvaded plots, contradicting the results from a laboratory experiment found by Abgrall et al (2018), where knotweed rhizome extracts in different concentrations were applied to soil collected in an invasion-prone site. We can only speculate why omnivores in some cases behave to F. japonica invasion as typical K-strategist and why not in others (Abgrall's extracts).…”

Section: Continuedcontrasting

confidence: 99%

“…It may be that their diverse and often unknown feeding strategies is hampering data interpretation (Cesarz et al, 2015), or the different study conditions (natural vs laboratory). In contrast, differences in predator abundances were not significantly different between the invaded and the non-invaded plots, confirming the findings by Abgrall et al (2018) and De Deyn et al (2004) that the change in plant communities, roots diversity, and biomass production do not affect the nematodes of higher trophic groups such as predators.…”

Section: Continuedsupporting

confidence: 78%

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A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe

Čerevková

Bobuľská

Miklisová

et al. 2019

Journal of Nematology

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This study determined the effect of the invasive plant Fallopia japonica on soil physical properties, microbial respiration, microbial biomass carbon content, enzymatic activities, and soil nematode communities. We established in total 30 plots in three natural habitats (forest, grassland, wetland) that were either uninvaded or mostly monospecifically invaded by F. japonica. The soil physical and microbial properties differed among the investigated plots, but the differences were observed to be non-significant between the invaded and the uninvaded plots. Non-metric multidimensional scaling based on nematode species diversity indicated that the total number of identified nematode species and their abundance were higher in the uninvaded compare to the invaded plots. Negative effect of F. japonica on omnivores, plant parasites, and root-fungal feeder nematodes was confirmed by their lower abundance in the invaded compared to the uninvaded plots. In the invaded plots, we also confirmed lower Maturity and Channel index, but higher Enrichment index. Our results thus indicated that the invasive plant F. japonica could affect nematode communities, more than physical or microbial properties, regardless of habitat.

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Section: Continuedcontrasting

confidence: 99%

Section: Continuedsupporting

confidence: 78%

A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe

Čerevková

Bobuľská

Miklisová

et al. 2019

Journal of Nematology

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“…Among these allelochemicals, phenolic compounds are ubiquitous and often result in allelopathy. Several IAPS like Fallopia japonica (Japanese knotweed), in United Kingdom, releases allelochemicals, which act as a novel weapon that drastically alters the food webs (Smith et al, 2007a,b;Abgrall et al, 2018). Likewise, Chromolaena odorata secretes odoratin, a novel allelochemical, which imparts the ability to defend against enemies, especially soil borne pathogens, and thus provides the IAPS a competitive edge over the native species (Zheng et al, 2015a,b).…”

Section: Acacia Dealbatamentioning

confidence: 99%

“…Causes substantial economic and environmental damage and alters food webs through secondary metabolites Smith et al (2007a,b), Rouifed et al (2012), Abgrall et al (2018)…”

mentioning

confidence: 99%

Invasive alien plant species: Their impact on environment, ecosystem services and human health

Kumar

Singh

2020

Ecological Indicators

273

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Ecological perturbations caused by biotic invasion have been identified as a growing threat to global sustainability. Invasive alien plants species (IAPS) are considered to be one of the major drivers of biodiversity loss and thereby altering the ecosystem services and socio-economic conditions through different mechanisms. Although the ecological impacts of IAPS are well documented, there is a dearth of studies regarding their economic quantification, livelihood considerations, biotechnological prospects (phytoremediation, bioenergy, phytosynthesis of nanoparticles, biomedical, industrial applications etc.) and human health risk assessments of IAPS. In this context, the current panoramic review aimed to investigate the environmental, socio-ecological and health risks posed by IAPS as well as the compounded impact of IAPS with habitat fragmentation, climate and land use changes. To this end, the need of an integrated trans-disciplinary research is emphasized for the sustainable management of IAPS. The management prospects can be further strengthened through their linkage with geo-spatial technologies (remote sensing and GIS) by mapping and monitoring the IAPS spread. Further, the horizon of IAPS management is expanded to ecological indicator perspectives of IAPS, biosecurity, and risk assessment protocols with critical discussion. Moreover, positive as well as negative implications of the IAPS on environment, health, ecosystem services and socio-economy (livelihood) are listed so that a judicious policy framework could be developed for the IAPS management in order to mitigate the human health implications.

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“…Asian knotweeds quickly invade the environment in which they grow (Gowton et al, 2016) and have large impacts (Lavoie, 2017). They displace other plant species through light competition and allelopathy (Dommanget et al, 2014;Siemens and Blossey, 2007), affect native fauna diversity (Abgrall et al, 2018;Gerber et al, 2008;Maerz et al, 2005;Serniak et al, 2017) and modify ecosystem functioning (Dassonville et al, 2011;Tharayil et al, 2013). In addition, the control costs are very high and were estimated at 250 million dollars a year in Great Britain (Colleran and Goodall, 2014) and more than 2 billion euros a year in Europe (Kettunen et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

A stochastic individual-based model for the growth of a stand of Japanese knotweed including mowing as a management technique

Lavallée¹,

Smadi²,

Alvarez³

et al. 2019

Ecological Modelling

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Invasive alien species are a growing threat for environment and health. They also have a major economic impact, as they can damage many infrastructures. The Japanese knotweed (Fallopia japonica), present in North America, Northern and Central Europe as well as in Australia and New Zealand, is listed by the World Conservation Union as one of the world's worst invasive species. So far, most models have dealt with how the invasion spreads without management. This paper aims at providing a model able to study and predict the dynamics of a stand of Japanese knotweed taking into account mowing as a management technique. The model we propose is stochastic and individual-based, which allows us taking into account the behaviour of individuals depending on their size and location, as well as individual stochasticity. We set plant dynamics parameters thanks to a calibration with field data, and study the influence of the initial population size, the mean number of mowing events a year and the management project duration on mean area and mean number of crowns of stands. In particular, our results provide the sets of parameters for which it is possible to obtain the stand eradication, and the minimal duration of the management project necessary to achieve this latter.

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Invasion by Fallopia japonica alters soil food webs through secondary metabolites

Cited by 45 publications

References 72 publications

A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe

A case study of soil food web components affected by Fallopia japonica (Polygonaceae) in three natural habitats in Central Europe

Invasive alien plant species: Their impact on environment, ecosystem services and human health

A stochastic individual-based model for the growth of a stand of Japanese knotweed including mowing as a management technique

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