Invasive alien plant species of Hassan District, Karnataka, India

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G.M. Prashanth Kumar
Shiddamallayya Nagayya


This study was undertaken to document alien and invasive flowering plant species in the Western Ghats (Hassan district, Karnataka, India), with background information on family, habit, habitat, longevity, nativity, and uses. A total of 312 alien species belonging to 236 genera in 79 families are listed. The majority belong to family Asteraceae (36 species), followed by Fabaceae (21 species), and Amaranthaceae (17 species). Herbs constitute the majority (59%) of alien species followed by shrubs (17 %). Around 36% the alien taxa are native to tropical America. Of 314 alien species, 122 were intentional introductions, with a majority (39%) introduced for ornamental purposes; 24% of species have naturalized, while 33% display as invasive. There is an urgent need to gather regional data on the diversity of invasive alien plant species in order to study the impact on native vegetation and biodiversity.

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Aguilera, A.G (2011). The influence of soil community density on plant-soil feedbacks: an important unknown in plant invasion. Ecological Modelling 222: 3214–3420.

Baker, H. (1965). Characteristics and modes of origin of weeds, pp. 147–172. In: Baker, H.G. & G.L. Stebbins (eds.). The Genetics of Colonizing Species. Academic Press, New York.

Bartz, R. & I. Kowarik (2019). Assessing the environmental impacts of invasive alien plants: a review of assessment approaches. NeoBiota 43: 69–99.

CBD (2000). Decision V/8. Alien species that threaten ecosystems, habitats or species. UNEP/CBD/COP/5/8. Nairobi, Kenya: Secretariat of the Convention on Biological Diversity.

Dawson, W., D. Moser, M. van Kleunen, H. Kreft, J. Pergl, P. Pyšek, P. Weigelt, M. Winter, B. Lenzner, T.M. Blackburn, E.E. Dyer, P. Cassey, S.L. Scrivens, E.P. Economo, B. Guénard, C. Capinha, H. Seebens, P. García-Díaz, W. Nentwig, E. García-Berthou, C. Casal, N.E. Mandrak, C. Fuller, P. Meyer & F. Ess (2017). Global hotspots and correlates of alien species richness across taxonomic groups. Nature Ecology & Evolution 1: 0186.

D’antonio, C.A.R.L.A. & L.A. Meyerson (2002). Exotic plant species as problems and solutions in ecological restoration: a synthesis. Restoration Ecology 10(4): 703–713.

Gallien, L. & M. Carboni (2017). The community ecology of invasive species: where are we and what’s next. Ecography 40: 335–352.

Ganeshaiah, K.N., S. Kathuria & R.U. Shaanker (2002). Floral resources of Karnataka: A geographic perspective. Current Science 83(7–10): 810–813.

Heywood, V.H. (1989). Patterns, extents, and modes of invasions by terrestrial plants, pp. 31–60. In: Drake, J.A., H.A. Mooney, F. di Castri, R.H. Groves, F.J. Kruger, M. Rejmanek & M. Williamson (eds.). Biological Invasions: A Global Perspective. John Wiley and Sons, New York.

Jaryan, V., S.K. Uniyal, R.C. Gupta & R.D. Singh (2013). Alien flora of Indian Himalayan state of Himachal Pradesh. Environmental Monitoring and Assessment 185(7): 6129–53.

Jones, B.A. & S.M. McDermott (2018). Health impacts of invasive species through an altered natural environment: assessing air pollution sinks as a causal pathway. Environmental and Resource Economics 71(1): 23–43.

Kambhar, S.V. & K. Kotresha (2011). A study on alien flora of Gadag District, Karnataka, India. Phytotaxa 16: 52–62.

Kannan, R., C.M. Shackleton & R.U. Shankar (2014). Invasive alien species as drivers in socio-ecological systems: local adaptions towards use of Lantana in southern India. Environment Development and Sustainability 16: 649–669.

Kaur, R., W.L. Gonza´les, L.D. Llambi, P.J. Soriano, R.M. Callaway, M.E. Rout, T.J. Gallaher & Inderjit (2012). Community impacts of Prosopis juliflora Invasion: biogeographic and congeneric comparisons. PLoS ONE 7(9): e44966.

Khuroo, A.A., Z.A. Reshi, A.H. Malik, E. Weber, I. Rashid & G.H. Dar (2012). Alien flora of India: taxonomic composition, invasion status and biogeographic affiliations. Biological Invasions 14: 99–113.

Khuroo, A.A., I. Rashid, R. Zafar, G.H. Dhar & B.A. Wafai (2007). The alien flora of Kashmir Himalaya. Biological Invasions 9: 269–292.

Kull, C.A., J. Tassin & H. Rangan (2007). Multifunctional, scrubby, and invasive forests? Wattles in the highlands of Madagascar. Mountain Research and Development 27: 224–231.

Lambdon, P.W., P. Pysek, C. Basnou, M. Hejda, M. Arianoutsou, F. Essl, V. Jarosık, J. Pergl, M. Winter, P. Anastasiu, P. Andriopoulos, I. Bazos, G. Brundu, L. Celesti-Grapow, P. Chassot, P. Delipetrou, M. Josefsson, S. Kark, S. Klotz, Y. Kokkoris, I. Kuhn, H. Marchante, I. Perglova, J. Pino, M. Vila, A. Zikos, D. Roy & P. Hulme (2008). Alien flora of Europe: species diversity, temporal trends, geographical patterns and research needs. Preslia 80: 101–149.

Latombe, G., P. Pyšek, J.M. Jeschke, T.M. Blackburn, S. Bacher, C. Capinha, M.J. Costello, M. Fernández, R.D. Gregory, D. Hobern, C. Hui, W. Jetz, S. Kumschick, C. McGrannachan, J. Pergl, H.E. Roy, R. Scalera, Z.E. Squires, J.R.U. Wilson, M. Winter, P. Genovesi & M.A. Mc Geoch (2017). A vision for global monitoring of biological invasions. Biological Conservation 213(Part B): 295–308.

Levine, J.M. (2000). Species diversity and biological invasions: relating local process to community pattern. Science 288: 852–854.

Lowe, S., M. Browne, S. Boudielas & M. De Poorter (2000). 100 of the World’s worst invasive alien species. A selection from the Global Invasive Species Database. The Invasive Species Specialist Group (ISSG) of the World Conservation Union (IUCN), Switzerland.

Mack, R.N. & M. Erneberg (2002). The United States naturalized flora: largely the product of deliberate introductions. Annals of the Missouri Botanical Garden 89: 176–189.

Maheshwari, J.K. (1965). Alligator weed in Indian lakes. Nature 206: 1270.

Matthew, K.M. (1969). Exotic flora of Kodaikanal and Palni hills. Records of the Botanical Survey of India 20: 1–241.

Mandal, G. & S.P. Joshi (2014). Invasion establishment and habitat suitability of Chromolaena odorata (L.) King and Robinson, over time and space in the western Himalayan forests of India. Journal of Asia-Pacific Biodiversity 7(4): 391–400.

McNeely, J.A. (2001). An introduction to human dimensions of invasive alien species. Human dimension of the consequences of invasive alien species. ISSG, IUCN.

Muniappan, R. & C.A. Viraktamath (1993). Invasive alien weeds in the Western Ghats. Current Science 64: 555–558.

Murthy, E.N., V.S. Raju & C.S. Reddy (2007). Occurrence of exotic Hyptis suaveolens. Current Science 93(9): 1203.

Nayar, M.P. (1977). Changing patterns of the Indian flora. Bulletin Botany Survey of India 19: 145–154.

Negi, P.S. & P.K. Hajra (2007). Alien flora Doon Valley, North West Himalaya. Current Science 92: 968–978.

Paul, T.K. (2010). The earliest record of Parthenium hysterophorus L. (Asteraceae) in India. Current Science 98 (10): 1272.

Pearson, D., Y. Ortega, O. Eren & J. Hierro (2018). Community assembly theory as a framework for biological invasions. Trends in Ecology & Evolution 33: 313–325.

Perrings, C., H. Mooney & M. Williamson (2010). Bioinvasions and Globalization: Ecology, Economics, Management and Policy. Oxford University Press, Oxford, 288 pp.

Petřík, P., J. Sádlo, M. Hejda, K. Štajerová, P. Pyšek, & J. Pergl (2019). Composition patterns of ornamental flora in the Czech Republic. NeoBiota 52: 87–109.

Petruzzella, A., J. Manschot, C. Van Leeuwen, B. Grutters & E. Bakker (2018). Mechanisms of invasion resistance of aquatic plant communities. Frontiers in Plant Science 9: 134.

Prakash, L. & P. Balasubramanian (2018). Invasive alien flora of Sathyamangalam Tiger Reserve in southern Eastern Ghats, India. Indian Forester 144(9): 857–862.

Pergl, J. Sádlo, J. Petřík, P. Danihelka, J. Chrtek, Jr J. Hejda, M. Moravcová, L. Perglová, I. Štajerová, K. & P. Pyšek (2016). Dark side of the fence: Ornamental plants as a source for spontaneous flora of the Czech Republic. Preslia 88: 163–188.

Pysek, P (1998). Is there a taxonomic pattern to plant invasion? Oikos 82: 282–294.

Pysek, P. & D.M. Richardson (2010). Invasive species, environmental change and management, and health. Annual Review of Environment and Resources 35: 25–55.

Pysek, P., D.M. Richardson., M. Rejmanek., G.L. Webster, M. Williamson & J. Kirschner (2004). Alien plants in checklists and flora: towards better communication between taxonomists and ecologists. Taxon 53: 131–143.

Pyšek, P., J. Danihelka, J. Sádlo, J. Chrtek, M. Chytrý, V. Jarošík, Z. Kaplan, F. Krahulec, L. Moravcová, J. Pergl, K. Štajerová & L. Tichý (2012). Catalogue of alien plants of the Czech Republic (2nd edition): checklist update, taxonomic diversity and invasion patterns. Preslia 84(2): 155–255.

Pyšek, P. & M. Chytrý (2014). Habitat invasion research: Where vegetation science and invasion ecology meet. Journal of Vegetation Science 25: 1181–1187.

Pyšek P., J. Pergl, F. Essl, B. Lenzner, W. Dawson, H. Kreft, P. Weigelt, M. Winter, J. Kartesz, M. Nishino, L.A. Antonova, J.F. Barcelona, F.J. Cabezas, D. Cárdenas, J. Cárdenas-Toro, N. Castańo, E. Chacón, C. Chatelain, S. Dullinger, A.L. Ebel, E. Figueiredo, N. Fuentes,P. Genovesi, Q.J. Groom, L. Henderson, Inderjit, A. Kupriyanov, S. Masciadri, N. Maurel, J. Meerman, O. Morozova, D. Moser, D. Nickrent, P.M. Nowak, S. Pagad, A. Patzelt, P.B. Pelser, H. Seebens, W. Shu, J. Thomas, M. Velayos, E. Weber, J.J. Wieringa, M.P. Baptiste & M. van Kleunen (2017). Naturalized alien flora of the world: species diversity, taxonomic and phylogenetic patterns, geographic distribution and global hotspots of plant invasion. Preslia 89(3): 203–274.

Raghubanshi, A.S., L.C. Rai, J.P. Gaur & J.S. Singh (2005). Invasive alien species and biodiversity in India. Current Science 88(4): 539–540.

Rai, P.K. & J.S. Singh (2020). Invasive alien plant species: Their impact on environment, ecosystem services and human health. Ecological Indicators 111: 106020.

Rao, R.R. (1994). Biodiversity in India: Floristic Aspects. Bishen Singh Mahendra Pal Singh, Dehra Dun.

Rao, R.R. (2012). Floristic diversity in Western Ghats: documentation, conservation and bioprospection- a priority agenda for action. Sahyadri e-news 38: 2–38.

Reddy, C.S. (2008). Catalogue of invasive alien flora of India. Life Science Journal 5(2): 84–89.

Reddy, C.S., G. Bagyanarayana, K.N. Reddy & V.S. Raju (2008). Invasive Alien Flora of India. National Biological Information Infrastructure, USGS, USA.

Richardson, D.M., P. Pysek, M. Rejmánek, M.G. Barbour, F.D. Panetta & C.J. West (2000). Naturalization and invasion of alien plants: concepts and definitions. Diversity and Distributions 6: 93.

Saldanha, C.J. & D.H. Nicolson (1976). Flora of Hassan District Karnataka, India. Amerind Publishing Co. Pvt. Ltd, New Delhi, 875 pp.

Saldanha, C.J. (1984). Flora of Karnataka. Vol 1. Oxford and IBH Publishing Co, New Delhi, 535pp.

Saldanha, C.J. (1996). Flora of Karnataka. Vol. 2. Oxford & IBH Publishing. Co. Pvt. Ltd. New Delhi.

Sharma, B.D. & D.S. Pandy (1984). Exotic flora of Allahabad district, Botanical Survey of India, Howrah.

Sharma, G.P., A.S. Raghubanshi. & J.S. Singh (2005). Lantana invasion: an overview. Weed Biology and Management 5(4): 157–165.

Shiddamallayya, N., V.R. Rao, T.R. Shantha, M.N. Shubhasree, H.D. Shashidhar, G. Venkateswarlu & B.N. Sridhar (2010). Invasive alien flora of Karnataka in Indian system of medicine (Ayurveda). Journal of Economic and Taxonomic Botany 34(3): 564–579.

Simberloff, D., J.L. Martin, P. Genovesi, V. Maris, D.A. Wardle, J. Aronson, F. Courchamp, B. Galil, E. Garcia-Berthou, M. Pascal, P. Pyšek, R. Sousa, E. Tabacchi & M. Vilà (2013). Impacts of biological invasions: what’s what and the way forward. Trends in Ecology and Evolution 28: 58–66.

Singh, J.S., S.P. Singh & S.R. Gupta (2006). Ecology Environment and Resource Conservation. Anamaya Publishers, New Delhi.

Singh, K.P., A.N. Shukla & J.S. Singh (2010). State-level inventory of invasive alien plants, their source regions and use potential. Current Science 99(1): 107–114.

Suthari, S., R. Kandagatla, S. Geetha, A. Ragan. & V. S Raju (2016). Intrusion of devil weed Chromolaena odorata, an exotic invasive, into Kinnerasani and Eturnagaram wildlife sanctuaries, Telangana, India. Journal of Threatened Taxa 8(2): 8538–8540.

van Kleunen, M., W. Dawson, F. Essl, J. Pergl, M. Winter, E. Weber, H. Kreft, P. Weigelt, J. Kartesz, M. Nishino, L.A. Antonova, F.J. Barcelona, F.J. Cabezas, D. Cárdenas, J. Cárdenas-Toro, N. Castańo, E. Chacón, C. Chatelain, S. Dullinger, A.L. Ebel, E. Figueiredo, N. Fuentes,P. Genovesi, Q.J. Groom, L. Henderson, Inderjit, A. Kupriyanov, S. Masciadri, N. Maurel, J. Meerman, O. Morozova, D. Moser, D. Nickrent, P.M. Nowak, S. Pagad, A. Patzelt, P.B. Pelser, H. Seebens, W. Shu, J. Thomas, M. Velayos, E. Weber, J.J. Wieringa, M.P. Baptiste & P. Pyšek (2015). Global exchange and accumulation of non-native plants. Nature 525: 100–103.

Villamagna, A.M. & B.R. Murphy (2010). Ecological and socio‐economic impacts of invasive water hyacinth (Eichhornia crassipes): a review. Freshwater Biology 55(2): 282–298.

Vitousek, P.M., H.A. Mooney, J. Lubchenco & J.M. Melillo (1997). Introduced species: A significant component of human-caused global change. New Zealand Journal of Ecology 21: 1–16.

Wu, S.H., H.T. Sun, Y.C. Teng, M., Rejmanek, S.M., Chaw, T.Y.A. Yang & C.F. Hsieh (2010). Patterns of plant invasions in China: taxonomic, biogeographic, climatic approaches and anthropogenic effects. Biological Invasions 12: 2179–2206.

Weber, E., S. Shi-Guo & B. Li (2008). Invasive alien plants in China: diversity and ecological insights. Biological Invasions 10: 1411–1429.