Population genetics suggest that multiple invasion processes need to be addressed in the management plan of a plant disease vector

Anderson, Kylie L., and Congdon, Bradley C. (2013) Population genetics suggest that multiple invasion processes need to be addressed in the management plan of a plant disease vector. Evolutionary Applications, 6 (4). pp. 660-672.

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The use of a multidisciplinary approach is becoming increasingly important when developing management strategies that mitigate the economic and biological costs associated with invasive pests. A framework of simulated dispersal is combined with life-history information and analyses of population genetic structure to investigate the invasion dynamics of a plant disease vector, the island sugarcane planthopper (Eumetopina flavipes), through an archipelago of significant Australian quarantine concern. Analysis of eight microsatellite loci from 648 individuals suggests that frequent, wind-assisted immigration from multiple sources in Papua New Guinea contributes significantly to repeated colonization of far northern islands. However, intermittent wind-assisted immigration better explains patterns of genetic diversity and structure in the southern islands and on the tip of mainland Australia. Significant population structuring associated with the presence of clusters of highly related individuals results from breeding in-situ following colonization, with little postestablishment movement. Results also suggest that less important secondary movements occur between islands; these appear to be human mediated and restricted by quarantine zones. Control of the planthopper may be very difficult on islands close to Papua New Guinea given the apparent propensity for multiple invasion, but may be achievable further south where local populations appear highly independent and isolated.

Item ID: 28719
Item Type: Article (Research - C1)
ISSN: 1752-4571
Keywords: colonization, invasion pathway, isolation by distance, long-distance dispersal, microsatellites, pest management, planthopper
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This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Date Deposited: 07 Aug 2013 05:26
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0501 Ecological Applications > 050103 Invasive Species Ecology @ 50%
06 BIOLOGICAL SCIENCES > 0604 Genetics > 060411 Population, Ecological and Evolutionary Genetics @ 50%
SEO Codes: 82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8203 Industrial Crops > 820304 Sugar @ 20%
96 ENVIRONMENT > 9604 Control of Pests, Diseases and Exotic Species > 960401 Border Biosecurity (incl. Quarantine and Inspection) @ 80%
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