TY  - JOUR
A1  - Tewes, Lisa Johanna
A1  - Müller, Caroline
T1  - Syndromes in suites of correlated traits suggest multiple mechanisms facilitating invasion in a plant range-expander
T2  - NeoBiota
N2  - 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 preadaptation 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.
KW  - Glucosinolates
KW  - herbivory
KW  - invasion mechanisms
KW  - intraspecific variation
KW  - pathogens
KW  - nitrate allocation
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/47323
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-473234
VL  - 2018
IS  - 37
SP  - 1
EP  - 22
ER  -