Species- and developmental stage-specific effects of allelopathy and competition of invasive Impatiens glandulifera on co-occurring plants

Bieberich, Judith; Lauerer, Marianne; Drachsler, Maria; Heinrichs, Julian; Müller, Stefanie; Feldhaar, Heike

doi:10.1371/journal.pone.0205843

Cited by 23 publications

(24 citation statements)

References 59 publications

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“…The reason could be a seasonally varying allelopathic effect of I. glandulifera because it is known, that in spring I. glandulifera has a higher content of the allelopathic compound 2-MNQ compared to summer (Ruckli et al 2014a). In a previous experimental study we showed that I. glandulifera has a species-specific allelopathic and competitive impact on native plants especially in the seedlings-and juvenile-stage (Bieberich et al 2018). Furthermore, cover of I. glandulifera from the previous sum-mer 2016 affected species composition in spring while it did not affect the resident community in summer 2016 itself.…”

Section: Plant Communities In Summer and Spring Were Affected Differementioning

confidence: 89%

“…The cover of both species correlated negatively, and according to the SEM they were favored by the same environmental conditions. Experimental studies confirm that U. dioica is negatively affected by I. glandulifera and that this effect is larger than vice versa (Tickner et al 2001, Gruntman et al 2014, Bieberich et al 2018.…”

Section: Impatiens Glandulifera Had No Impact On Plant Diversity But mentioning

confidence: 97%

“…After introduction to Europe in the 19 th century it spread mainly along riverbanks and into wet habitats such as fens, mesotrophic grasslands, and woodland, but also forests out of the riparian zone, and into ruderal vegetation (Beerling and Perrins 1993, Pyšek and Prach 1993, 1995, Čuda et al 2017. The invasion success of I. glandulifera is, among other factors, favored by a strong competitive and allelopathic effect, reducing the growth of native plants as seen in experimental studies (Vrchotová et al 2011, Gruntman et al 2014, Ruckli et al 2014a, Loydi et al 2015, Bieberich et al 2018. However, field studies showed ambiguous results.…”

Section: Introductionmentioning

confidence: 99%

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Micro-habitat and season dependent impact of the invasive Impatiens glandulifera on native vegetation

Bieberich¹,

Feldhaar²,

Lauerer³

2020

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The impact of invasive species is often difficult to assess due to species × ecosystem interactions. Impatiens glandulifera heavily invaded several habitat types in Central Europe but its impact on native plant communities is rated ambiguously. One reason could be that the impact differs between habitat types or even between environmentally heterogeneous patches (micro-habitats) within one habitat type. In the present study a vegetation survey was performed within heterogeneous riverside habitats in Germany investigating the impact of I. glandulifera on native vegetation in dependence of environmental conditions. The vegetation was recorded in summer and spring because of seasonal species turnover and thus potentially different impact of the invasive plant. We found that the cover of I. glandulifera depended on environmental conditions resulting in a patchy occurrence. I. glandulifera did not have any impact on plant alpha-diversity but reduced the cover of the native vegetation, especially of the dominant species. This effect depended on micro-habitat and season. The native vegetation was most affected in bright micro-habitats, especially those with a high soil moisture. Not distinguishing between micro-habitats, plant species composition was not affected in summer but in spring. However, environmental conditions had a higher impact on the native vegetation than I. glandulifera. We conclude that within riparian habitats the threat of I. glandulifera to the native vegetation can be rated low since native species were reduced in cover but not excluded from the communities. This might be due to patchy occurrence and year-to-year changes in cover of I. glandulifera. The context-dependency in terms of micro-habitat and season requires specific risk assessments which is also an opportunity for nature conservation to develop management plans specific to the different habitats. Particular attention should be given to habitats that are bright and very wet since the effect of I. glandulifera was strongest in these habitats.

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Section: Plant Communities In Summer and Spring Were Affected Differementioning

confidence: 89%

Section: Impatiens Glandulifera Had No Impact On Plant Diversity But mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Micro-habitat and season dependent impact of the invasive Impatiens glandulifera on native vegetation

Bieberich¹,

Feldhaar²,

Lauerer³

2020

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“…Impatiens glandulifera (an invasive species) produces 2-methoxy-1, 4-naphthoquinonw (2-MNQ), which is reckoned as an important allelochemical (Ruckli et al 2014). Recently, it was found not only negatively affecting native plants but also the plants from the same species in neighbors (Bieberich et al 2018).…”

Section: Interspecific and Intraspecific Interactionmentioning

confidence: 99%

The role of root exudates, CMNs, and VOCs in plant–plant interaction

Rahman

Zhou

2019

Journal of Plant Interactions

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In the last few decades, incredible advances have been made in understanding the way of communication among members of kingdom plantae. Some plants fight for their existence and try to suppress the growth of other plants, while some share resources to benefit each other for their survival. During all these processes, plants use several biotic and abiotic mediums such as root exudates, volatile organic compounds (VOCs), and light for the interactions. Plant can change its physiological behaviors, such as change in gene regulation and induction of defense mechanism, when linked with neighboring plant through common mycorrhizal networks (CMNs). Root exudates are also critical in plant-plant interaction, since they share information, shape microbial community, and mediate recourse competition. Moreover, plants have been found warning their neighbors about pathogen attack and herbivory through the release of VOCs. This review will advance the understandings of roles of various communication media from the prospective of intra-and interspecific interactions as well as kin recognition.

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“…Several studies have reported that I. glandulifera has a negative influence on ecosystems and ecosystem services, such as plant diversity (Kiełtyk and Delimat 2019), soil fungal communities (Gaggini et al 2019;Pattison et al 2016;Ruckli et al 2016), and terrestrial invertebrates (Seeney et al 2019). Allelopathic components of I. glandulifera may also negatively affect native vegetation (Bieberich et al 2018). In a riparian area in northwest Switzerland, Greenwood and Kuhn (2014) found that erosion was greater from sites invaded by I. glandulifera compared with sites with native vegetation.…”

Section: Introductionmentioning

confidence: 99%

Hot water and cutting for control ofImpatiens glandulifera

Oliver

Berge

Solhaug

et al. 2020

Invasive plant sci. manag.

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Ornamental jewelweed (Impatiens glandulifera Royle) is an alien invasive plant in Europe. This annual plant often grows in riparian habitats where herbicides are prohibited. Several studies have reported the negative effect on ecosystem and ecosystem services by this species. However, limited research is published on control measures and the aim of our study was to explore use of hot water and cutting to control I. glandulifera. A lab experiment showed that the lethal water temperature for seed was between 45 and 50 C. In a pot experiment with seeds in soil, emergence of I. glandulifera was reduced by 78% and 93% compared with the untreated control with volumes of hot water (80 C) of 7.2 and 14.5 L m−2, respectively. When treatments were conducted on relatively tall plants (almost 60 cm) in late June, hot water gave significantly better control than cutting. Compared with an untreated control, I. glandulifera cover was reduced by 97% and 79% after hot water and cutting, respectively. Application of hot water to smaller (<40 cm) and less developed plants (BBCH 12–13) in early June and cutting of plants with visible flower buds (mid-July) led to no significant difference in cover. Compared with an untreated control, I. glandulifera cover was reduced by 99% (cut below first node) and 91% (hot water and cut above first node). When relatively tall plants (almost 60 cm) were treated, hot water use was high (31.1 L m−2) and required twice as many work hours (4.8 min m−2) as cutting (2.4 min m−2). When smaller plants (<40 cm) were targeted, work hours and hot water use were reduced to 2.1 min m−2 and 13.7 L m−2, respectively.

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Species- and developmental stage-specific effects of allelopathy and competition of invasive Impatiens glandulifera on co-occurring plants

Cited by 23 publications

References 59 publications

Micro-habitat and season dependent impact of the invasive Impatiens glandulifera on native vegetation

Micro-habitat and season dependent impact of the invasive Impatiens glandulifera on native vegetation

The role of root exudates, CMNs, and VOCs in plant–plant interaction

Hot water and cutting for control ofImpatiens glandulifera

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