Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander

Tewes L-J, Müller C (2018)
NeoBiota 37: 1-22.

Journal Article | Published | English

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Abstract
Various mechanisms can facilitate the success of plant invasions simultaneously, but may be difficult to disentangle. In the present study, plants of the range-expanding species Bunias orientalis from native, invasive and naturalised, not yet invasive populations were compared in a field common garden over two years. Plants were grown under two nitrate-regimes and multiple traits regarding growth, defence, antagonist loads and reproduction were measured. A rank-based clustering approach was used to assign correlated traits to distinct suites. These suites were analysed for “syndromes” that are expressed as a function of population origin and/or fertilisation treatment and might represent different invasion mechanisms. Indeed, distinct suites of traits were differentially affected by these factors. The results suggest that several pre-adaptation properties, such as certain growth characteristics and intraspecific chemical variation, as well as post-introduction adaptations to antagonists and resource availability in novel habitats, are candidate mechanisms that facilitate the success of invasive B. orientalis in parallel. It was concluded that rank-based clustering is a robust and expedient approach to integrate multiple traits for elucidating invasion syndromes within individual species. Studying a multitude of traits at different life-history and establishment stages of plants grown under distinct resource treatments reveals species-specific trade-offs and resource sinks and simplifies the interpretation of trait functions for the potential invasive success of plants.
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Tewes L-J, Müller C. Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander. NeoBiota. 2018;37:1-22.
Tewes, L. - J., & Müller, C. (2018). Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander. NeoBiota, 37, 1-22. doi:10.3897/neobiota.37.21470
Tewes, L. - J., and Müller, C. (2018). Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander. NeoBiota 37, 1-22.
Tewes, L.-J., & Müller, C., 2018. Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander. NeoBiota, 37, p 1-22.
L.-J. Tewes and C. Müller, “Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander”, NeoBiota, vol. 37, 2018, pp. 1-22.
Tewes, L.-J., Müller, C.: Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander. NeoBiota. 37, 1-22 (2018).
Tewes, Lisa-Johanna, and Müller, Caroline. “Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander”. NeoBiota 37 (2018): 1-22.
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