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New pasture plants intensify invasive species risk

Driscoll, Don A., Catford, Jane A., Barney, Jacob N., Hulme, Philip E., Inderjit, Martin, Tara G., Pauchard, Anibal, Pyšek, Petr, Richardson, David M., Riley, Sophie and Visser, Vernon 2014, New pasture plants intensify invasive species risk, Proceedings of the National Academy of Sciences of the United States of America, vol. 111, no. 46, pp. 16622-16627, doi: 10.1073/pnas.1409347111.

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Title New pasture plants intensify invasive species risk
Author(s) Driscoll, Don A.ORCID iD for Driscoll, Don A. orcid.org/0000-0002-1560-5235
Catford, Jane A.
Barney, Jacob N.
Hulme, Philip E.
Inderjit
Martin, Tara G.
Pauchard, Anibal
Pyšek, Petr
Richardson, David M.
Riley, Sophie
Visser, Vernon
Journal name Proceedings of the National Academy of Sciences of the United States of America
Volume number 111
Issue number 46
Start page 16622
End page 16627
Total pages 6
Publisher National Academy of Sciences
Place of publication Washington, D.C.
Publication date 2014-11-18
ISSN 1091-6490
Keyword(s) agriculture policy
biological invasions
environmental weed
invasive species
sustainable intensification
Summary Agricultural intensification is critical to meet global food demand, but intensification threatens native species and degrades ecosystems. Sustainable intensification (SI) is heralded as a new approach for enabling growth in agriculture while minimizing environmental impacts. However, the SI literature has overlooked a major environmental risk. Using data from eight countries on six continents, we show that few governments regulate conventionally bred pasture taxa to limit threats to natural areas, even though most agribusinesses promote taxa with substantial weed risk. New pasture taxa (including species, subspecies, varieties, cultivars, and plant-endophyte combinations) are bred with characteristics typical of invasive species and environmental weeds. By introducing novel genetic and endophyte variation, pasture taxa are imbued with additional capacity for invasion and environmental impact. New strategies to prevent future problems are urgently needed. We highlight opportunities for researchers, agribusiness, and consumers to reduce environmental risks associated with new pasture taxa. We also emphasize four main approaches that governments could consider as they build new policies to limit weed risks, including (i) national lists of taxa that are prohibited based on environmental risk; (ii) a weed risk assessment for all new taxa; (iii) a program to rapidly detect and control new taxa that invade natural areas; and (iv) the polluter-pays principle, so that if a taxon becomes an environmental weed, industry pays for its management. There is mounting pressure to increase livestock production. With foresight and planning, growth in agriculture can be achieved sustainably provided that the scope of SI expands to encompass environmental weed risks.
Language eng
DOI 10.1073/pnas.1409347111
Field of Research 050204 Environmental Impact Assessment
070301 Agro-Ecosystem Function and Prediction
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DE120102221
Copyright notice ©2014, National Academy of Sciences
Persistent URL http://hdl.handle.net/10536/DRO/DU:30078614

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