Where can introduced populations learn their tricks? Searching for the geographical source of a species introduction to the Galápagos archipelago

摘要: We seek to understand the potential genetic impact of introduced species in an ecosystem where conservation efforts and pressure from development co-occur: Galapagos Archipelago. To date, weevil Galapaganus h. howdenae is found only Santa Cruz Island; however it has recently expanded its range beyond Agricultural Zone into highlands. are focusing on comparisons between continental populations clarify whether current patterns can reflect recovery a past bottleneck predict invasive potential. A second objective narrow down geographic source introduction confirm their origin single pulse. comparable microsatellite diversity featuring many island-specific alleles, but reduced mitochondrial haplotype islands. Additionally, both markers showed signals population expansion homogeneously distributed variation range, contrast structured populations. The addition sequences dataset Approximate Bayesian Computation analyses (Diyabc) favors pulse Northern Manabi area; scenario that agreement with network. An higher elevation habitats provides clues about environmental amplitude naturalized However, given large percentage island due new answer question “where learn tricks?” could be: right at location.