Invasion process and potential spread of<i>Amaranthus retroflexus</i>in China

Qin, Zhong; Zhang, J. E.; Jiang, Yuan; Wei, Hui; Wang, F. G.; Lu, Xiaoyang

doi:10.1111/wre.12282

Cited by 12 publications

(7 citation statements)

References 30 publications

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“…Based on the modified Australian WRA system for the 19 alien plants (Table ) (Nishida et al ., ; Alec et al ., ; Qin et al ., ) and 16 native species (Table ), total scores ranged from −7 to 21. The number of questions answered varied from 34 to 45.…”

Section: Resultsmentioning

confidence: 99%

Outbreak of a new alien invasive plant Salvia reflexa in north‐east China

et al. 2019

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Summary The establishment of invasive species is widely recognised as a pivotal issue in the preservation of biodiversity. Salvia reflexa, a species native to the south‐central United States and Mexico, has been widely introduced in Argentina, Australia, New Zealand and Japan. In China, the first population of this plant was found growing adjacent to a grain depot in Shahai village, Jianping County, Liaoning Province, on 25 July 2007. Since the grain depot imported foodstuffs from regions where the plant is native, we infer that S. reflexa was introduced into China via imported foodstuff in the early to mid‐2000s. Based on field observations, at least seven populations of this plant were observed in north‐east China. The plants displayed vigorous growth in midsummer and produced prolific seeds to overcome the cold environment in winter. Salvia reflexa occurred in both dense monocultures and in mixed stands with native plants. In order to validate a system for recognising and categorising non‐native plants in China, the Australian Weed Risk Assessment system was used to assess the invasiveness status of 19 exotic and 16 native plants in north‐east China. Salvia reflexa exhibited a high score of 10, suggesting it is a potentially pernicious alien invasive plant. Although the current distribution of S. reflexa is restricted to Liaoning province and thus far has limited impact on local environments, local regulatory authorities should pay close attention to this plant and take measures to stop its expansion. This is the first time that an invasive plant from the Lamiaceae (mint family) has been documented from cold environments in China.

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Section: Resultsmentioning

confidence: 99%

Outbreak of a new alien invasive plant Salvia reflexa in north‐east China

et al. 2019

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“…Physiological plasticity, varied tolerance ranges, phenotypic plasticity, and high fecundity and transmission capacity may make invasive alien plants easy to cope with global change (Bradley et al, 2009 ; Qin et al, 2018 ). However, types of research prove that some components of global change may promote or hinder species invasion.…”

Section: Discussionmentioning

confidence: 99%

Potential distribution prediction ofAmaranthus palmeriS. Watson in China under current and future climate scenarios

Zhang

Zhao

Wang

et al. 2022

Ecology and Evolution

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The vicious invasive alien plant Amaranthus palmeri poses a serious threat to ecological security and food security due to its strong adaptability, competitiveness, and herbicide resistance. Predicting its potential habitats under current and future climate change is critical for monitoring and early warning. In this study, we used two sets of climate data, namely, WorldClim1.4 and RCPs (the historical climate data of WorldClim version 1.4 and future climate data of RCPs), WorldClim2.1 and SSPs (the historical climate data of WorldClim version 2.1 and future climate data of SSPs), to analyze the dominant environmental variables affecting the habitat suitability and predict the potential distribution of A. palmeri to climate change in China based on the MaxEnt model. The results show that (i) Temperature has a greater impact on the distribution of A. palmeri . The relative contributions of temperature‐related variables count to 70% or more, and the annual mean temperature (bio1) reached more than 40%. (ii) At present, the potentially suitable area is widely distributed in the central‐east and parts of southwest China, and the high suitable area is focused on the North China Plain. The potential suitable area predicted by WorldClim1.4 and WorldClim2.1 both accounts for about 31% of China's total land area. (iii) Future climate change will expand the suitable habitats to high latitudes and altitudes. The overall suitable area maximum increased to 44.93% under SSPs and 38.91% under RCPs. We conclude that climate change would increase the risk of A. palmeri expanding to high latitudes and altitudes, the results have practical implications for the effective long‐term management in response to the global warming of A. palmeri .

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“…It has a dramatic impact on ecosystems and native species (Rezaie and Yarnia 2009; Wang et al 2017) and is regarded as the third most notorious weed in the world (Yang et al 2011;Ma et al 2012). Amaranthus retro exus has expanded its distribution in large areas since its introduction to China in approximately 1905 (Qin et al 2018). Seeds of common ragweed and redroot pigweed were collected from Mentougou District in Beijing (100 km from the experiment site) in October 2013.…”

Section: Plant Materialsmentioning

confidence: 99%

Climate Change Hastens Invasional Interference Between Two Notorious Invasive Plants, Common Ragweed (Ambrosia Artemisiifolia) and Redroot Pigweed (Amaranthus Retroflexus), in China

Zhao¹,

Zhao²,

Li³

2021

Preprint

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As multiple invaders co-occur in similar habitats, understanding the interactions between different invasive species is very important. Invasional meltdown and neutral and interference relationships have been reported. However, interspecific interactions may vary with environmental change due to the different responses of various invaders. To better understand the interaction of notorious invasive alien plants under global climate change, the growth characters of common ragweed (Ambrosia artemisiifolia) and redroot pigweed (Amaranthus retroflexus) were compared when they were planted in monoculture or mixed culture under four environmental treatments: elevated CO2, enriched N, elevated CO2 + enriched N and a control. The results showed that 1) the plant height, basal stem diameter, and shoot, root, and total biomass of common ragweed all consistently increased in response to the treatments, while the growth traits of redroot pigweed were all inhibited. A significant CO2×N interaction was found only for the shoot and total biomass of common ragweed. 2) Invasional interference between these two notorious alien invasive plants was discovered. Common ragweed consistently displayed an obvious competitive advantage over redroot pigweed regardless of treatment. 3) Elevated CO2 and enriched N obviously changed the seed mass frequency distribution of common ragweed: elevated CO2 increased the proportion of small seeds, while enriched N increased the proportion of large seeds. We conclude that common ragweed can outcompete redroot pigweed; moreover, elevated CO2 and N addition hasten this competitive advantage.

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Invasion process and potential spread ofAmaranthus retroflexusin China

Cited by 12 publications

References 30 publications

Outbreak of a new alien invasive plant Salvia reflexa in north‐east China

Outbreak of a new alien invasive plant Salvia reflexa in north‐east China

Potential distribution prediction ofAmaranthus palmeriS. Watson in China under current and future climate scenarios

Climate Change Hastens Invasional Interference Between Two Notorious Invasive Plants, Common Ragweed (Ambrosia Artemisiifolia) and Redroot Pigweed (Amaranthus Retroflexus), in China

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