Propagule pressure and hunting pressure jointly determine genetic evolution in insular populations of a global frog invader.

ABSTRACT: Islands are often considered to be more susceptible to biological invasions and to suffer greater impacts from invaders than mainland areas, and this difference is generally attributed to differences in species introductions, ecological factors or human activities between islands and mainland areas. Genetic variation, as a good estimate of evolutionary potential, can influence the invasion process and impacts of alien species. However, few studies have compared the genetic diversity of alien species between islands and a corresponding mainland. Here, we examined the genetic variation and differentiation in feral populations (30 sampled individuals/population) of a globally invasive species (the American bullfrog, Lithobates catesbeianus) that was extensively farmed on 14 islands in the Zho

SUBMITTER: Wang S 

PROVIDER: S-EPMC6345768 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature