Impact of invasive plants on the species richness, diversity and composition of invaded communities
Abstract
1. Much attention has been paid to negative effects of alien species on resident communities but studies that quantify community-level effects of a number of invasive plants are scarce. We address this issue by assessing the impact of 13 species invasive in the Czech Republic on a wide range of plant communities. 2. Vegetation in invaded and uninvaded plots with similar site conditions was sampled. All species of vascular plants were recorded, their covers were estimated and used as importance values for calculating the Shannon diversity index H', evenness J and Sørensen index of similarity between invaded and uninvaded vegetation. 3. With the exception of two invasive species, species richness, diversity and evenness were reduced in invaded plots. Species exhibiting the greatest impact reduced species numbers per plot and the total number of species recorded in the communities sampled by almost 90%. A strong reduction of species number at the plot scale resulted in a marked reduction in the total species number at the landscape scale, and in less similarity between invaded and uninvaded vegetation. The decrease in species richness in invaded compared to uninvaded plots is largely driven by the identity of the invading species, whereas the major determinants of the decrease in Shannon diversity and evenness are the cover and height of invading species, and differences between height and cover of invading and dominant native species, independent of species identity. 4. Synthes…
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Impacts of alien species depend on the abundance of the alien species and their trophic levels relative to those of affected native species.
“and depend on the abundance of the alien species and their trophic levels relative to those of affected native species (Hejda, Pyšek, & Jarošík, 2009; Bradley et al., 2019).”
From Scientists' warning on invasive alien species (2020) · cites this paper as Hejda, Pyšek, & Jarošík, 2009
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Experimental Design and Data Analysis for Biologists
Quinn, G. P., & Keough, M. J. (2002) · doi:10.1017/cbo9780511806384 · Cited by 10,674 · cited 3× · see citing works
“…species were then examined by regressing simple slopes on increasing differences between the cover of invading and dominant native species at varying values of the cover of the invading species: its mean, and mean plus and minus its sample standard deviation (Quinn & Keough 2002, pp. 131–133).”
BackgroundMethodInfluentialEffects of Invasive Alien Plants on Fire Regimes
BROOKS, M. L., D'ANTONIO, C. M., RICHARDSON, D. M., GRACE, J. B., KEELEY, J. E., DiTOMASO, J. M., HOBBS, R. J., PELLANT, M., & PYKE, D. (2004) · BioScience · doi:10.1641/0006-3568(2004)054[0677:eoiapo]2.0.co;2 · Cited by 1,634 · see citing works
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Scientists' warning on invasive alien species
Pyšek, P., Hulme, P. E., Simberloff, D., Bacher, S., Blackburn, T. M., Carlton, J. T., Dawson, W., Essl, F., Foxcroft, L. C., Genovesi, P., et al. (2020) · Biological Reviews · doi:10.1111/brv.12627 · Cited by 2,234 · see citing works
Self-citationMore than “100 worst” alien species in Europe
Nentwig, W., Bacher, S., Kumschick, S., Pyšek, P., & Vilà, M. (2018) · Biological Invasions · doi:10.1007/s10530-017-1651-6 · Cited by 316 · see citing works
Self-citationLow biodiversity state persists two decades after cessation of nutrient enrichment
Isbell, F., Tilman, D., Polasky, S., Binder, S., & Hawthorne, P. (2013) · Ecology Letters · doi:10.1111/ele.12066 · Cited by 203 · see citing works
Wilsey, B. J., Daneshgar, P. P., & Polley, H. W. (2011) · Perspectives in Plant Ecology, Evolution and Systematics · doi:10.1016/j.ppees.2011.07.002 · Cited by 99 · see citing works
- Authors
- Hejda, M., Pyšek, P., & Jarošík, V.
- Affiliations
- Charles University (CZ)
- Corresponding author
- Pyšek, Petr
- Venue
- Journal of Ecology
- Publisher
- Wiley
- Published
- 2009-04-08
- Volume
- 97
- Issue
- 3
- Pages
- 393-403
- ISSN
- 0022-0477 (ISSN-L)
- 1365-2745
- OpenAlex
- W2062128024
- Cited by
- 1,172
- References
- 2
- Citations by year
- 2026: 51 · 2025: 71 · 2024: 80 · 2023: 88 · 2022: 85 · 2021: 108 · 2020: 102 · 2019: 79 · 2018: 72 · 2017: 80 · 2016: 61 · 2015: 61 · 2014: 54 · 2013: 56 · 2012: 48
- FWCI
- 36.73
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Ecology (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ecology and Vegetation Dynamics Studies
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Botany and Plant Ecology Studies
- Physical Sciences › Environmental Science › Ecology › Animal Ecology and Behavior Studies
- Keywords
- invasive plants, introduced species, floristic composition, species richness, species diversity, species evenness, vegetation cover, plant height, native species, landscape-scale effects, Czech Republic flora
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