Academic Journal
Contrasting functional responses of non-native invasive species along a tropical elevation gradient
| العنوان: | Contrasting functional responses of non-native invasive species along a tropical elevation gradient |
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| المؤلفون: | Gillerot, Loïc, Negreiros, Daniel, Barbosa, Newton P. U., Silveira, Fernando A. O., de Paula, Luiza F. A. |
| المصدر: | ACTA BOTANICA BRASILICA ; ISSN: 0102-3306 ; ISSN: 1677-941X |
| سنة النشر: | 2021 |
| المجموعة: | Ghent University Academic Bibliography |
| مصطلحات موضوعية: | Earth and Environmental Sciences, PHENOTYPIC PLASTICITY, TRAITS, PLANTS, CONSERVATION, GRASSLANDS, campo rupestre, invasive plants, join-the-locals, OCBIL, plant, functional traits, resource-limitation, try-harder |
| الوصف: | One hypothesized invasion strategy ("try-harder") predicts that invaders exhibit functional traits that are better adjusted to the environment than native species. Alternatively, the "join-the-locals" hypothesis predicts trait convergence between invasive and native species due to environmental filtering with increasing resource limitation. We hypothesized that invasions strategies shift from "try-harder" to "join-the-locals" with increasing elevation. We used an elevational gradient to detect possible trait convergences between alien invaders and native plant species in Asteraceae, Fabaceae and Poaceae. We found a significant trait convergence with elevation only in Asteraceae, suggesting a species-specific pattern, but also an important phenotypic variability of the alien invader. This supports the idea that the more resource-limited the environment, the more it filters out traits substantially diverging from the locally-adapted native community, thereby entailing a shift from "try-harder" to "join-the-locals" strategies. The invasive grass was also more acquisitive but did not exhibit any relation to the native community, supporting the "try-harder" hypothesis. The size of the invasive Fabaceae species decreased with elevation, mirroring the native Fabaceae species, but not the overall native community. Including more replicates and a thorough quantification of environmental conditions, offers a promising avenue for improving the understanding the seemingly idiosyncrasies of invasion pathways. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://biblio.ugent.be/publication/8744353; http://hdl.handle.net/1854/LU-8744353; http://dx.doi.org/10.1590/0102-33062021abb0017; https://biblio.ugent.be/publication/8744353/file/8744363 |
| DOI: | 10.1590/0102-33062021abb0017 |
| الاتاحة: | https://biblio.ugent.be/publication/8744353 http://hdl.handle.net/1854/LU-8744353 https://doi.org/10.1590/0102-33062021abb0017 https://biblio.ugent.be/publication/8744353/file/8744363 |
| Rights: | Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E25604CE |
| قاعدة البيانات: | BASE |
| DOI: | 10.1590/0102-33062021abb0017 |
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