Synergy among hypotheses in the invasion process of alien plants: A road map within a timeline

Wan, Lingyun; Qi, Shanshan; Rutherford, Susan; Ren, Guangqian; Wan, Justin S. H.; Du, Daolin

doi:10.1016/j.ppees.2020.125575

Cited by 27 publications

(16 citation statements)

References 92 publications

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“…To date, there is still contradictory information about whether non‐native mycorrhizal plants (especially the facultative ones – FM) are indeed related to high spreadability and wider niche than the non‐mycorrhizal (Dai et al, 2020; Gerz et al, 2018; Hempel, 2013; Menzel et al, 2017; Moyano et al, 2019; Pyšek et al, 2019). Our results not only corroborate but expand that tendency to the new range (higher native SLS and invasion success).…”

Section: Discussionmentioning

confidence: 99%

Dark diversity at home describes the success of cross‐continent tree invasions

Paganeli

Toussaint

Bueno

et al. 2022

Diversity and Distributions

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Aim Non‐native species threaten ecosystems worldwide, but we poorly know why some species invade more. Functional traits, residence time and native range size have been often used as invasion predictors. Here, we advance in the field by linking invasion success to native range parameters derived from dark diversity – a set of species present in the surrounding region that are absent in a study location even if ecological conditions are suitable. We tested whether those parameters improve the description of species success outside their native range. Location North America; Europe and Mediterranean Basin. Methods For 170 tree species native in one and non‐native in another region, we defined their invasion success as the number of locations occupied at the non‐native range. The probabilistic dark diversity was estimated based on the species co‐occurrences in their native ranges. It specifies how suitable is a species for a location, even if the species is absent. We calculated two parameters: sum of native location suitabilities (niche breadth proxy) and dark diversity probability (how often a species is absent from suitable locations, indicating niche realization limitations). We explored whether models including the dark diversity parameters performed better than one with a common species range measure, the number of locations occupied. We accomplished our models by adding functional traits, residence time and invasion direction. Results Invasion success increased with the sum of native location suitabilities and decreased with dark diversity probability. This model with dark diversity parameters outperformed an alternative using the number of native locations occupied. Our best model included invasion direction, functional traits (including mycorrhizal status) and residence time, but dark diversity parameters remained important predictors. Main conclusions The dark diversity parameters can contribute to invasion ecology by linking the species performance in the non‐native range to its niches parameters, derived from the native range.

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Section: Discussionmentioning

confidence: 99%

Dark diversity at home describes the success of cross‐continent tree invasions

Paganeli

Toussaint

Bueno

et al. 2022

Diversity and Distributions

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“…The higher performance of growth, competitiveness, and stress resistance is critical for alien plants’ invasion success in the early colonization stage [ 46 ]. The clonal growth traits can help plants adapt to new environments more quickly and enable alien clonal plants to colonize and compete successfully in a wide range of habitats [ 47 ] by mediating environmental stresses and sharing resources between ramets (i.e., stolon or rhizome structures) [ 48 ].…”

Section: Discussionmentioning

confidence: 99%

Both Adaptability and Endophytic Bacteria Are Linked to the Functional Traits in the Invasive Clonal Plant Wedelia trilobata

Mei

Zhou

et al. 2022

Plants

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The role of the interactions between endophytes and host plants is unclear in invasive plants from different geographical latitudes. In this study, we aimed to explore the relationship between endophytic microbes and the functional traits of the invasive plant Wedelia trilobata. We explored the relationship between endophytes and the clonal growth traits of the invasive clonal plant Wedelia trilobata from different geographical latitudes using high-throughput sequencing technology and a common garden-planting experiment. We found that: (1) Different W. trilobata populations had similar endophytic fungi but different endophytic bacteria. However, no latitudinal variation pattern of the overall microbial community was found; (2) plant clonal growth performance (i.e., spacer length) was significantly correlated with endophytic bacterial diversity but not fungal diversity; and (3) the latitudinal variation pattern of the plant clonal growth performance of W. trilobata populations was found in pre-cultivated (i.e., wild) individuals but disappeared in post-cultivated W. trilobata. Our results suggest both environmental adaptability and the endophytic bacterial community are linked to the functional traits of the invasive clonal plant W. trilobata, and these functional traits tend to increase its invasiveness, which may enhance its invasion success.

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“…A species is considered invasive when it is spreading beyond its natural area of distribution (Wang et al 2017a). After successfully passing through the introduction, colonization, and establishment phases, a species finally achieves invasiveness and is often expanding its range size exponentially (invasive phase) (Dai et al 2020). Thus, the invasive process of an alien species may be one that is out of control, marked by runaway population growth (Ren et al 2019), for which the spreading stage contains different invasion degrees, which can reflects the invader's status in a region.…”

Section: Introductionmentioning

confidence: 99%

Warming and elevated nitrogen deposition accelerate the invasion process of Solidago canadensis L.

et al. 2022

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Background Invasive species can threaten native diversity and alter ecosystem processes while interacting with other components of global environmental change. Invasive plants are becoming increasingly problematic and this can be stimulated by changes in the environment. However, existing studies have primarily investigated the effects of environmental change on a specific stage of plant invasion rather than the continuous invasion process. Methods A space-for-time substitution experiment was performed to investigate how warming and nitrogen deposition affects the invasion process of a plant. Specifically, different ratios of invasive Solidago canadensis L. to native Artemisia argyi Levl. et Van were employed as a proxy to represent successive levels of invasion. A total of seven treatments were applied in the experiment: ambient (CK), N addition (+ 5, + 12 g m−2 year−1), warming (+ 1.15, + 1.86 °C) and their interaction (5 g N m−2 year−1 + 1.15 °C, 12 g N m−2 year−1 + 1.86 °C). The growth performance and competitiveness of S. canadensis were investigated. Results The competitiveness of Solidago canadensis decreased linearly with its invasion degree (p < 0.05). Non-linear regression showed that S. canadensis invasion levels of 53%, 53%, 68%, 55% and 58% were the critical thresholds for shifting the direction or magnitude of chlorophyll, leaf nitrogen, leaf shape index, diameter, and root/shoot ratio, respectively. Compared with the ambient treatment (CK, no warming and no N addition), the diameter, height, biomass and relative competitiveness of S. canadensis were each limited by warming, to a certain extent, whereas these and the above parameters were significantly increased by nitrogen deposition. The interaction of increased temperature and nitrogen deposition led to significant increases in the growth and competitiveness of S. canadensis, and this effect was detected in every stage of the invasion, throughout the invasion process. Conclusions Environmental change might have a continuous, progressive, and augmentative effect on the phenotypic traits of S. canadensis. This study provides fairly robust evidence that environmental change promotes the invasion process of S. canadensis in general, not simply in specific stages. In the future, rather than focusing on specific stages, experimental studies should consider examining invasion on a broader scale.

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Synergy among hypotheses in the invasion process of alien plants: A road map within a timeline

Cited by 27 publications

References 92 publications

Dark diversity at home describes the success of cross‐continent tree invasions

Dark diversity at home describes the success of cross‐continent tree invasions

Both Adaptability and Endophytic Bacteria Are Linked to the Functional Traits in the Invasive Clonal Plant Wedelia trilobata

Warming and elevated nitrogen deposition accelerate the invasion process of Solidago canadensis L.

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