Soil mesofauna may buffer the negative effects of drought on alien plant invasion

Jin, Huifei; Liang, Cheng; Kleunen, Mark van; Liu, Yanjie

doi:10.1111/1365-2745.13950

Cited by 11 publications

(11 citation statements)

References 122 publications

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“…Based on the total biomass of the alien target species and native community, we calculated the biomass proportion of the alien target species in each pot (i.e. alien target species/[alien target species + native community]), representing the dominance of alien target species in communities (similar approach in Jin et al, 2022; Li et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

Effects of arbuscular mycorrhizal fungi on plant invasion success driven by nitrogen fluctuations

Zhang,

Liu

2023

Journal of Applied Ecology

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Both enemies and mutualists play crucial roles in shaping plant invasion processes. Recent studies have suggested that resource fluctuations could indirectly promote plant invasion through higher trophic levels, such as enemies. However, the influence of mutualists like arbuscular mycorrhizal fungi (AMF) on plant invasion under nitrogen fluctuations remains untested. We conducted a pot mesocosm experiment using a three‐factorial experimental design to assess the individual and interactive effects of nitrogen availability, nitrogen fluctuation and AMF on invasive success of alien plants. We grew nine invasive alien species alongside five different native communities in pot mesocosms. These were then subjected to varied nitrogen availabilities (low vs. high), nitrogen fluctuations (constant vs. pulsed) and AMF presence or absence within a sterile substrate. We found that pulsed nitrogen supply increased the dominance of invasive alien species in low nitrogen availability, regardless of the presence or absence of AMF inoculation. However, in high nitrogen availability, pulsed nitrogen supply only enhanced this dominance in pots without AMF inoculation. This was tentatively evidenced by the three‐way interaction among nitrogen‐availability, nitrogen‐fluctuation and AMF‐inoculation treatments. Furthermore, the dominance promotion by nitrogen addition was greater than that by AMF inoculation. Synthesis and applications. Our findings present, for the first time, evidence that AMF may play a crucial role in mediating the promotion effects of nitrogen fluctuations on alien plant invasion. To better understand the invasion process of alien plants and evaluate their impact on native communities, future research should integrate abiotic and biotic drivers into a single framework. Furthermore, our findings underscore the importance of prioritizing habitats with higher nutrient availability and variability for protection against alien plant invasions.

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Section: Methodsmentioning

confidence: 99%

Effects of arbuscular mycorrhizal fungi on plant invasion success driven by nitrogen fluctuations

Zhang,

Liu

2023

Journal of Applied Ecology

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“…On the other hand, the soil biota has a positive effect on plant growth (Jin et al, 2022;Lussenhop & BassiriRad, 2005;Mehring & Levin, 2015;Partsch et al, 2006). However, a higher root-to-shoot ratio is related to the ability of plants to access below-ground resources (nutrients and water) and is crucial for establishing ecosystems in competitive environments (Casper & Jackson, 1997;Ferguson et al, 2015).…”

Section: Effects On Root-to-shoot Ratiomentioning

confidence: 99%

“…Due to the increasing influence of human activities (Meyerson & Mooney, 2007 ; Turbelin et al., 2017 ), alien species continue to proliferate worldwide, potentially resulting in significant negative ramifications on ecosystems and human welfare (Kumschick et al., 2015 ; Paini et al., 2016 ). The invasion success of alien species may depend on environmental conditions in the invaded range, including both abiotic (Liu et al., 2017 ; Wang et al., 2017 ; Wang, Bai, et al., 2016 ) and biotic factors (Huang et al., 2020 ; Jin et al., 2022 ; Shan et al., 2022 ). Among them, it is widely acknowledged that the availability of environmental resources plays significant roles in facilitating the successful invasion of alien species (the resource fluctuation hypothesis; Davis et al., 2000 ; Enders et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Soil nutrient limitation and natural enemies promote the establishment of alien species in native communities

Xu,

Guo,

Bai

et al. 2024

Ecology and Evolution

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The invasion of alien plant species threatens the composition and diversity of native communities. However, the invasiveness of alien plants and the resilience of native communities are dependent on the interactions between biotic and abiotic factors, such as natural enemies and nutrient availability. In our study, we simulated the invasion of nine invasive plant species into native plant communities using two levels of nutrient availability and suppression of natural enemies. We evaluated the effect of biotic and abiotic factors on the response of alien target species and the resistance of native communities to invasion. The results showed that the presence of enemies (enemy release) increased the biomass proportion of alien plants while decreasing that of native communities in the absence of nutrient addition. Furthermore, we also found that the negative effect of enemy suppression on the evenness of the native community and the root‐to‐shoot ratio of alien target species was greatest under nutrient addition. Therefore, nutrient‐poor and natural enemies might promote the invasive success of alien species in native communities, whereas nutrient addition and enemy suppression can better enhance the resistance of native plant communities to invasion.

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“…Invasion of exotic plants is thought to be a result of globalization, agriculture and human activity ( Seebens et al, 2015 ; Linders et al, 2019 ; Jin et al, 2022 ). The loss of native biodiversity caused by plant invasion has a significant negative impact on ecosystem processes and services ( Craig et al, 2015 ; Wang et al, 2020 ; Zhang and Suseela, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Changes in the structure and function of rhizosphere soil microbial communities induced by Amaranthus palmeri invasion

Zhang

Shi

et al. 2023

Front. Microbiol.

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IntroductionPlant invasion can profoundly alter ecosystem processes driven by microorganisms. The fundamental mechanisms linking microbial communities, functional genes, and edaphic characteristics in invaded ecosystems are, nevertheless, poorly understood.MethodsHere, soil microbial communities and functions were determined across 22 Amaranthus palmeri (A. palmeri) invaded patches by pairwise 22 native patches located in the Jing-Jin-Ji region of China using high-throughput amplicon sequencing and quantitative microbial element cycling technologies.ResultsAs a result, the composition and structure of rhizosphere soil bacterial communities differed significantly between invasive and native plants according to principal coordinate analysis. A. palmeri soils exhibited higher abundance of Bacteroidetes and Nitrospirae, and lower abundance of Actinobacteria than native soils. Additionally, compared to native rhizosphere soils, A. palmeri harbored a much more complex functional gene network with higher edge numbers, average degree, and average clustering coefficient, as well as lower network distance and diameter. Furthermore, the five keystone taxa identified in A. palmeri rhizosphere soils belonged to the orders of Longimicrobiales, Kineosporiales, Armatimonadales, Rhizobiales and Myxococcales, whereas Sphingomonadales and Gemmatimonadales predominated in the native rhizosphere soils. Moreover, random forest model revealed that keystone taxa were more important indicators of soil functional attributes than edaphic variables in both A. palmeri and native rhizosphere soils. For edaphic variables, only ammonium nitrogen was a significant predictor of soil functional potentials in A. palmeri invaded ecosystems. We also found keystone taxa in A. palmeri rhizosphere soils had strong and positive correlations with functional genes compared to native soils.DiscussionOur study highlighted the importance of keystone taxa as a driver of soil functioning in invaded ecosystem.

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Soil mesofauna may buffer the negative effects of drought on alien plant invasion

Cited by 11 publications

References 122 publications

Effects of arbuscular mycorrhizal fungi on plant invasion success driven by nitrogen fluctuations

Effects of arbuscular mycorrhizal fungi on plant invasion success driven by nitrogen fluctuations

Soil nutrient limitation and natural enemies promote the establishment of alien species in native communities

Changes in the structure and function of rhizosphere soil microbial communities induced by Amaranthus palmeri invasion

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