Bando, F. M., Figueiredo, B. R. S., Moi, D. A., Thomaz, S. M., Michelan, T. S., García–Girón, J., Heino, J., Alahuhta, J., Romero, G. Q., & Mormul, R. P. (2023). Invasion by an exotic grass species homogenizes native freshwater plant communities. Journal of Ecology, 111, 799–813. https://doi.org/10.1111/1365-2745.14061
Invasion by an exotic grass species homogenizes native freshwater plant communities
|Author:||Bando, Fabielle M.1; Figueiredo, Bruno R. S.2; Moi, Dieison A.3;|
1Programa de Pós–Graduação em Ecologia, Universidade Federal do Pará (UFPA), Belém, Brazil
2Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina (UFSC), Campus Universitário, Florianópolis, Brazil
3Programa de Pós–Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá (UEM), Maringá, Brazil
4Department of Biodiversity and Environmental Management, University of León, León, Spain
5Geography Research Unit, University of Oulu, Oulu, Finland
6Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
7Programa de Pós–Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá (UEM), Maringá, Brazil;
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe20230914125433
John Wiley & Sons,
|Publish Date:|| 2024-04-04
1. A growing body of evidence has shown that biological invasions cause shifts in species composition of communities in space and time. Although biological invasions are considered a major driver of biotic homogenisation worldwide, most previous studies were conducted at small spatial scales and over short time periods, which may have underestimated the impacts of exotic species on native communities.
2. Using a unique dataset of aquatic plants sampled in 235 sites over 12 years (2007–2010 and 2015–2019) in a large reservoir (Itaipu Reservoir; 1350 km²), we analysed how the invasion of a non-native grass Urochloa arrecta affects the species richness, ecological uniqueness (i.e. local contribution to beta diversity—LCBD) and temporal β–diversity of native plant communities.
3. From 3934 surveyed plant communities, U. arrecta was recorded in 2888 samples and it was absent from 1046 samples. Overall, species richness and ecological uniqueness of native plant communities were markedly lower in sites invaded than non-invaded by U. arrecta. From 2007 to 2019, the ecological uniqueness of native plants was 60% lower in the invaded than non-invaded sites. Whereas in invaded sites species loss was the dominant process driving native communities over time, in non-invaded sites gain of new native species was the primary process underlying community trajectories. Moreover, comparing native plant communities before and after the invasion of U. arrecta, species richness, ecological uniqueness and species gains of native plant communities decreased, whereas species losses increased after the invasion of U. arrecta. Finally, the positive relationship between native biodiversity and precipitation was stronger in non-invaded than invaded sites.
4. Synthesis. Our findings provide comprehensive evidence that an invasive plant is decreasing the spatial and temporal β–diversity of native plant communities through declining species richness, rather than simply correlating with them. This suggests that U. arrecta is driving native plants to become less diverse and homogeneous after the invasion, both spatially and temporally. Our findings illustrate that at broad scales, aquatic plant communities may become increasingly homogeneous with the increasing number of biological invasion events taking place worldwide.
Journal of ecology
|Pages:||799 - 813|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
1181 Ecology, evolutionary biology
1172 Environmental sciences
The authors are grateful to Itaipu Binacional, which partially funded this study. FMB is grateful to CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil) for a scholarship. DAM received a scholarship from the Brazilian National Council for Scientific and Technological Development (CNPq: Proc. N°. 141239/2019-0). GQR was supported by São Paulo Research Foundation (FAPESP: grants 2018/12225-0 and 2019/08474-8), CNPq-Brazil productivity grant, and funding from the Royal Society, Newton Advanced Fellowship (grant N°. NAF/R2/180791). SMT, GQR and RPM thank CNPq for providing the research productivity Grants.
© 2022 The Authors. Journal of Ecology © 2022 British Ecological Society. This is the peer reviewed version of the following article: Bando, F. M., Figueiredo, B. R. S., Moi, D. A., Thomaz, S. M., Michelan, T. S., García–Girón, J., Heino, J., Alahuhta, J., Romero, G. Q., & Mormul, R. P. (2023). Invasion by an exotic grass species homogenizes native freshwater plant communities. Journal of Ecology, 111, 799–813, which has been published in final form at https://doi.org/10.1111/1365-2745.14061. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.