Influence of precipitation dynamics on plant invasions: response of alligator weed (Alternanthera philoxeroides) and co-occurring native species to varying water availability across plant communities

Ren, Guangqian; Du, Yizhou; Yang, Bin; Wang, Jingjing; Cui, Miaomiao; Dai, Zhicong; Adomako, Michael Opoku; Rutherford, Susan; Du, Daolin

doi:10.1007/s10530-022-02931-2

Cited by 5 publications

(1 citation statement)

References 78 publications

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“…Conversely, when environmental change promotes an adjacent superior competitor, it will inhibit another ( Liu et al., 2012 ). Exotic species’ superior competitive abilities are thought to be responsible for successful invasion ( Pfeifer-Meister et al., 2008 ; Ren et al., 2022a ). These competitive characteristics will impact the establishment and dispersal of exotic species ( Jeffrey and D’Antonio, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Additive effects of warming and nitrogen addition on the performance and competitiveness of invasive Solidago canadensis L.

et al. 2022

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Changes in temperature and nitrogen (N) deposition determine the growth and competitive dominance of both invasive and native plants. However, a paucity of experimental evidence limits understanding of how these changes influence plant invasion. Therefore, we conducted a greenhouse experiment in which invasive Solidago canadensis L. was planted in mixed culture with native Artemisia argyi Levl. et Van under combined conditions of warming and N addition. Our results show that due to the strong positive effect of nitrogen addition, the temperature increases and nitrogen deposition interaction resulted in greatly enhanced species performance. Most of the relative change ratios (RCR) of phenotypic traits differences between S. canadensis and A. argyi occur in the low invasion stage, and six of eight traits had higher RCR in response to N addition and/or warming in native A. argyi than in invasive S. canadensis. Our results also demonstrate that the effects of the warming and nitrogen interaction on growth-related traits and competitiveness of S. canadensis and A. argyi were usually additive rather than synergistic or antagonistic. This conclusion suggests that the impact of warming and nitrogen deposition on S. canadensis can be inferred from single factor studies. Further, environmental changes did not modify the competitive relationship between invasive S. canadensis and native A. argyi but the relative yield of S. canadensis was significantly greater than A. argyi. This finding indicated that we can rule out the influence of environmental changes such as N addition and warming which makes S. canadensis successfully invade new habitats through competition. Correlation analysis showed that invasive S. canadensis may be more inclined to mobilize various characteristics to strengthen competition during the invasion process, which will facilitate S. canadensis becoming the superior competitor in S. canadensis-A. argyi interactions. These findings contribute to our understanding of the spreading of invasive plants such as S. canadensis under climate change and help identify potential precautionary measures that could prevent biological invasions.

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Section: Introductionmentioning

confidence: 99%

Additive effects of warming and nitrogen addition on the performance and competitiveness of invasive Solidago canadensis L.

et al. 2022

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Plant Invasion and Climate Change: A Global Overview

Sharma,

Kaur,

Kaur

et al. 2023

Plant Invasions and Global Climate Change

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Neutral interactions between native Alternanthera sessilis and exotic Alternanthera philoxeroides along a light gradient under tropical climatic conditions

Kankanamge,

Sujaw

2024

Weed Research

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Riparian ecosystems are under a serious threat of invasion due to the clearance of riparian vegetation, which allows for increased light levels at ground level. This study presents the interactions between native Alternanthera sessilis (L.) R. Br. ex DC and invasive Alternanthera philoxeroides (Mart.) Griseb. during the colonization stage along a light gradient under tropical climate conditions. We conducted a 6 week growth experiment with monocultures of A. philoxeroides and A.sessilis and mixed communities of two species under four light levels (100%, 46%, 26% and 14% of full sunlight). Exposure to full sunlight (nearly 1800 μmol m−2 s−1) resulted in a significantly high biomass accrual in both species. However, biomass accrual did not correlate with the light intensity. At higher shade levels, reduction of lateral spread and shoot/root ratio was observed. Community composition had no influence on biomass accrual or morphological variations. Plasticity index values were approximately same in both species. Total relative yield was approximately two in all shade conditions, indicating that the two species interact neutrally along the light gradient. Therefore, the results of the study indicate that increased light levels will accelerate the proliferation of both species in riparian zones. Nevertheless, increased or decreased shade is unlikely to alter neutral interactions between A. philoxeroides and A. sessilis.

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Influence of precipitation dynamics on plant invasions: response of alligator weed (Alternanthera philoxeroides) and co-occurring native species to varying water availability across plant communities

Cited by 5 publications

References 78 publications

Additive effects of warming and nitrogen addition on the performance and competitiveness of invasive Solidago canadensis L.

Additive effects of warming and nitrogen addition on the performance and competitiveness of invasive Solidago canadensis L.

Plant Invasion and Climate Change: A Global Overview

Neutral interactions between native Alternanthera sessilis and exotic Alternanthera philoxeroides along a light gradient under tropical climatic conditions

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