Spreading and Distribution of Lactuca scariola, Invasive Alien Plant, by Habitat Types in Korea

Kim, Young Ha; Kil, Jihyon; Hwang, Sun-Min; Lee, Chang-Woo

doi:10.5660/wts.2013.2.2.138

Cited by 13 publications

(3 citation statements)

References 11 publications

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“…L. serriola is an annual or biennial herbaceous plant species that originated in Europe. Since it was first reported as an alien species in 1978, its range has expanded rapidly across South Korea 21 , 22 . The high drought tolerance of L. serriola has been suggested as a critical trait facilitating its successful invasion of open habitats, including roadsides, vacant lots, and ruins 21 , 23 , 24 .…”

Section: Introductionmentioning

confidence: 99%

Invasive Lactuca serriola seeds contain endophytic bacteria that contribute to drought tolerance

Jeong

Kim

Choi

et al. 2021

Sci Rep

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The mutualistic relationship between alien plant species and microorganisms is proposed to facilitate or hinder invasive success, depending on whether plants can form novel associations with microorganisms in the introduced habitats. However, this hypothesis has not considered seed endophytes that would move together with plant propagules. Little information is available on the seed endophytic bacteria of invasive species and their effects on plant performance. We isolated the seed endophytic bacteria of a xerophytic invasive plant, Lactuca serriola, and examined their plant growth-promoting traits. In addition, we assessed whether these seed endophytes contributed to plant drought tolerance. Forty-two bacterial species were isolated from seeds, and all of them exhibited at least one plant growth-promoting trait. Kosakonia cowanii occurred in all four tested plant populations and produced a high concentration of exopolysaccharides in media with a highly negative water potential. Notably, applying K. cowanii GG1 to Arabidopsis thaliana stimulated plant growth under drought conditions. It also reduced soil water loss under drought conditions, suggesting bacterial production of exopolysaccharides might contribute to the maintenance of soil water content. These results imply that invasive plants can disperse along with beneficial bacterial symbionts, which potentially improve plant fitness and help to establish alien plant species.

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Section: Introductionmentioning

confidence: 99%

Invasive Lactuca serriola seeds contain endophytic bacteria that contribute to drought tolerance

Jeong

Kim

Choi

et al. 2021

Sci Rep

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“…The adverse effects of invasive species are well-recognized by the Korean government, and efforts to mitigate these negative effects have been underway since decades (Ministry of the Environment, 2019). In addition to identifying the habitat preferences of the target species (Kim et al, 2013;Lee et al, 2013;Hong et al, 2015), it is important to develop models that can accurately estimate the current spatial distribution and any distribution changes, to effectively control invasive species.…”

Section: Introductionmentioning

confidence: 99%

Modeling the distribution of invasive species (Ambrosia spp.) using regression kriging and Maxent

et al. 2022

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Invasion by non-native species due to human activities is a major threat to biodiversity. The niche hypothesis for invasive species that rapidly disperse and disturb ecosystems is easily discarded owing to eradication activities or unsaturated dispersal. Here, we used spatial and non-spatial models to model the distribution of two invasive plant species (Ambrosia artemisiifolia and Ambrosia trifida), which are widely distributed, but are also being actively eradicated. Regression kriging (RK) and Maxent were used to predict the spatial distribution of the two plant species having eradication targets for decades in South Korea. In total, 1,478 presence/absence data points in the Seoul metropolitan area (∼11,000 km2 in northeastern South Korea) were used. For regression kriging, the presence/absence data were first fitted with environmental covariates using a generalized linear model (GLM), and then the residuals of the GLM were modeled using ordinary kriging. The residuals of GLM showed significant spatial autocorrelation. The spatial autocorrelation was modeled using kriging. Regression kriging, which considers the spatial structure of data, yielded area under the receiver operating curve values of 0.785 and 0.775 for A. artemisiifolia and A. trifida, respectively; however, the values of Maxent, a non-spatial model, were 0.619 and 0.622, respectively. Thus, regression kriging was advantageous as it considers the spatial autocorrelation of the data. However, species distribution modeling encounters difficulties when the current species distribution does not reflect optimal habitat conditions (the niche habitat preferences) or when colonization is disturbed by artificial interference (e.g., removal activity). This greatly reduces the predictive power of the model if the model is based solely on the niche hypotheses that do not reflect reality. Managers can take advantage of regression modeling when modeling species distributions under conditions unfavorable to the niche hypothesis.

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“…Two invasive alien plants, Aster pilosus Willd. and Lactuca scariola L., were introduced into South Korea approximately 50 years ago [ 14 , 15 ]. These plants have rapidly spread across South Korea.…”

Section: Introductionmentioning

confidence: 99%

Spatially Varying Relationships between Alien Plant Distributions and Environmental Factors in South Korea

Park

Lee

Choi

et al. 2021

Plants

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Invasive alien plants can severely threaten biodiversity and cause economic losses in the agricultural industry; therefore, identifying the critical environmental factors related to the distribution of alien plants plays a crucial role in ecosystem management. In this study, we applied partial least squares regression (PLSR) and geographically weighted regression (GWR) to estimate the important environmental factors affecting the spread of two invasive and expansive plants, Lactuca scariola L. and Aster pilosus Willd., across South Korea. GWR provides more accurate predictions than ordinary least squares regression, and the local coefficients of GWR allow for the determination of the spatial relationships between alien plant distributions and environmental variables. Based on the model’s results, the distributions of these alien species were significantly associated with anthropogenic effects, such as human population density, residential area, and road density. Furthermore, the two alien species can establish themselves in habitats where native plants cannot thrive, owing to their broad tolerance to temperature and drought conditions. This study suggests that urban development and expansion can facilitate the invasion of these species in metropolitan cities.

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Spreading and Distribution of Lactuca scariola, Invasive Alien Plant, by Habitat Types in Korea

Cited by 13 publications

References 11 publications

Invasive Lactuca serriola seeds contain endophytic bacteria that contribute to drought tolerance

Invasive Lactuca serriola seeds contain endophytic bacteria that contribute to drought tolerance

Modeling the distribution of invasive species (Ambrosia spp.) using regression kriging and Maxent

Spatially Varying Relationships between Alien Plant Distributions and Environmental Factors in South Korea

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