BIOLOGICAL INVASIONS: MECHANISMS, ECOLOGICAL IMPACTS, AND GLOBAL CONSEQUENCES
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Invasive Alien Species (IAS) represent a primary driver of the "Sixth Mass Extinction," transitioning from natural historical dispersal to rapid, human-mediated migration. This article examines the mechanisms, ecological impacts, and socio-economic consequences of biological invasions. Anthropogenic pathways, including international trade and tourism, circumvent natural geographic barriers, allowing species with specific biological attributes—such as r-selected reproduction, phenotypic plasticity, and generalist diets—to establish dominance. Climate change further exacerbates these invasions by creating new ecological niches and weakening native ecosystem resilience.
The study details the multi-fronted assault on native flora and fauna. For flora, mechanisms such as resource competition, allelopathy (chemical warfare), and the disruption of plant-pollinator networks lead to "extinction debts." For fauna, the research highlights the devastating effects of predation on evolutionarily naive species, niche displacement, and the spillover of novel pathogens.
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Korlam, S., Priya, M. V. & Chandramouli, R. (2026). Biological Invasions: Mechanisms, Ecological Impacts, and Global Consequences. International Journal of Science, Strategic Management and Technology, 02(04). https://doi.org/10.55041/ijsmt.v2i4.064
Korlam, Saivenkatesh, et al.. "Biological Invasions: Mechanisms, Ecological Impacts, and Global Consequences." International Journal of Science, Strategic Management and Technology, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijsmt.v2i4.064.
Korlam, Saivenkatesh,M Priya, and R Chandramouli. "Biological Invasions: Mechanisms, Ecological Impacts, and Global Consequences." International Journal of Science, Strategic Management and Technology 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijsmt.v2i4.064.
References
2.(2019). Global assessment report on biodiversity and ecosystem services of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. IPBES secretariat.
3.Pyšek, P., Hulme, P. E., Simberloff, D., Bacher, S., Blackburn, T. M., Carlton, J. T., ... & Richardson, D. M. (2020). Scientists' warning on invasive alien species. Biological Reviews, 95(6), 1511-1534.
4.Blackburn, S. M., Pyšek, P., Bacher, S., Carlton, J. T., Duncan, R. P., Jarošík, V., Wilson, J. R. U., & Richardson, D. M. (2011). A proposed unified framework for biological invasions. Trends in Ecology & Evolution, 26(7), 333–339. https://doi.org/10.1016/j.tree.2011.03.023
5.Diez, J. M., D'Antonio, C. M., Dukes, J. S., Grosholz, E. D., Olden, J. D., Sorte, C. J., Blumenthal, D. M., Bradley, B. A., Early, R., Ibañez, I., Lavorel, S., & Miller, L. P. (2012). Will climate change favoured non-native species? Frontiers in Ecology and the Environment, 10(5), 249–257. https://doi.org/10.1890/110158
6.Hellmann, J. J., Byers, J. E., Bierwagen, B. G., & Dukes, J. S. (2008). Five potential consequences of climate change for invasive species. Conservation Biology, 22(3), 534–543. https://doi.org/10.1111/j.1523-1739.2008.00951.x
7.Hulme, P. E. (2021). Unpacking the complexity of invasion pathways. Biological Invasions, 23(1), 1–4. https://doi.org/10.1007/s10530-020-02381-z
8.Latombe, G., Canavan, S., Hirsch, H., Hui, C., Kumschick, S., Nsikani, M. M., Potgieter, L. J., Robinson, T. B., Richardson, D. M., & Wilson, J. R. (2021). A unified framework for understanding and managing biological invasions. Biological Reviews, 96(5), 1645–1663. https://doi.org/10.1111/brv.12718
9.Pyšek, P., Hulme, P. E., Simberloff, D., Bacher, S., Blackburn, T. M., Carlton, J. T., Dawson, W., Essl, F., Foxcroft, L. C., Genovesi, P., Jeschke, J. M., Meyerson, L. A., Pergl, J., Richardson, D. M., Seebens, H., Kleunen, M., van Mansur, L. S., Guayasamin, P. R., & Wilson, J. R. (2020). Scientists' warning on biological invasions. Biological Reviews, 95(6), 1511–1534. https://doi.org/10.1111/brv.12627
10.Hale, A. N., Kalisz, S., & Berger, S. J. (2016). Invasive garlic mustard (Alliaria petiolata) disrupts the arbuscular mycorrhizal fungal community and reduces native plant growth in a deciduous forest. Biological Invasions, 18(4), 1157–1169
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