Chapter 6

Systematics and biological control

Jeremy C. Andersen

Jeremy C. Andersen

Department of Environmental Science, Policy, & Management, University of California, USA

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David L. Wagner

David L. Wagner

Department of Ecology & Evolutionary Biology, University of Connecticut, USA

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First published: 13 May 2016
Citations: 7

Summary

There are few fields of study in ecology where the correct identification of an organism, whether it is to the species or population level, has great an effect on ecosystem functioning and services as in the study of the biological control of pest species. This chapter reviews how incorrect taxonomic determinations can greatly affect the speed, safety, and success of biological control efforts. Then, it highlights the critical nature of voucher materials and concludes by reviewing molecular methods available for identification of biological control agents and their target pests. In biological control settings, phylogenies can be used to identify the likely origins of both pests and control agents. DNA barcoding is a tool for identifying specimens to species and is often capable of distinguishing intraspecific lineages. One of the methods for examining genetic variation within species, microsatellite analysis compares the numbers of repetitions in a targeted section of non-coding DNA.

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