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Emerging Invaders from the Cultivated Croplands: An Invasion Perspective

  • Neha Goyal
  • Gyan Prakash SharmaEmail author
Chapter
Part of the Sustainable Development and Biodiversity book series (SDEB, volume 10)

Abstract

Understanding potential sources and pathways of colonization by alien plant propagules in novel environments is crucial for assessing invasion risks posed by aggressive colonizers. With the enormous expansion and intensification of agriculture, cultivated croplands are emerging as potent sources of robust weeds and/or invaders. Ongoing increase in adaptability and evolutionary potential of agricultural systems demands our understanding to better evaluate the invasion risks to heterogeneous environments. The review intends to collate the fine ecological overlap of crops and associated plants with the plant invaders. We begin with an overview of plant invasion process and discuss invasion risks posed by cultivated croplands through putative propagule escape from crops, crop-associated weeds, and feral crop descendants, continuing with a subsequent discussion on their fate. The synthesis concludes with promising prospects for research which may generate better insights on putative invasion risks from croplands.

Keywords

Colonizer Cropland Crop improvement Invasion risk Propagule 

Notes

Acknowledgments

Authors thank Dr. V.R. Rajpal and Prof. S.N. Raina for the invitation to write this chapter. GPS acknowledges funding from University of Delhi and Department of Science and Technology, India. NG acknowledges Senior Research Fellowship (SRF) support from University Grants Commission, India. Constructive suggestions by Prof. A.S. Raghubanshi, Banaras Hindu University are duly acknowledged.

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© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Department of Environmental StudiesUniversity of DelhiDelhiIndia

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