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      The evolutionary impact of invasive species.

      Proceedings of the National Academy of Sciences of the United States of America

      Animals, Biological Evolution, Geography, Hybridization, Genetic, Species Specificity

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          Abstract

          Since the Age of Exploration began, there has been a drastic breaching of biogeographic barriers that previously had isolated the continental biotas for millions of years. We explore the nature of these recent biotic exchanges and their consequences on evolutionary processes. The direct evidence of evolutionary consequences of the biotic rearrangements is of variable quality, but the results of trajectories are becoming clear as the number of studies increases. There are examples of invasive species altering the evolutionary pathway of native species by competitive exclusion, niche displacement, hybridization, introgression, predation, and ultimately extinction. Invaders themselves evolve in response to their interactions with natives, as well as in response to the new abiotic environment. Flexibility in behavior, and mutualistic interactions, can aid in the success of invaders in their new environment.

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          Author and article information

          Journal
          11344292
          33232
          10.1073/pnas.091093398

          Chemistry

          Animals, Biological Evolution, Geography, Hybridization, Genetic, Species Specificity

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