Conclusion
In this study, we describe the occurrence of long-distance jump
dispersal in the native range of the termite R. flavipes . This
long-distance dispersal may allow admixture between populations that are
otherwise isolated. Similar to multiple introductions through different
pathways, admixture in native populations prior to introduction may
favor invasion success by increasing the amount of genetic diversity
brought to the introduced range. However, pre-introduction admixture may
not be as common as multiple introduction scenarios (i.e.,post-introduction admixture), because the benefits of admixture in the
novel environment of the invasive range are probably higher, and the
costs smaller. As native populations are locally adapted, long-distance
dispersal and admixture therefore disturb this local adaptation
(Verhoeven et al. 2011,
Palacio-Lopez et al. 2017). In contrast,
populations in invaded ranges are too recent to be locally adapted. This
lack of local adaptation releases introduced populations from
maintaining specific locale-selected allelic combinations, and therefore
allows them to fully benefit from admixture.