Evolutionary genetics of invasive species: using molecules and morphological variation to trace the origin and dissemination of exotic pests

摘要

Analyses of the spread of invasive species have been classically based on studies of life history parameters and surveys of range spread. Population genetics and phylogeographic approaches can provide better understanding of biological invasions. Genetic tools compared with morphometric analysis are used to gain information on the biology of invasive organisms, including pathways of spread, the biology of colonization and the role of genetic variation in these processes. Invasions by an economicallyimportant pest - the coconut mite {Aceria guerreronis) - which has recently become a threat in several continents, have been traced. The usefulness of tracing the biogeographic origin and subsequent dissemination of exotic invasive species was studied, addressing issues to aid in the prevention of accidental pest introduction and related measures for monitoring quarantine efforts.