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We identify a total of 96 freshwater non-indigenous species established in the River Thames catchment, England; of which 55 % were introduced intentionally. Our analysis shows that 53 % of the species became established in the last 50 years and invasion rates have significantly increased since 1800. Analysis of shipping activity and population size in the catchment area revealed a positive correlation...
Two species of apple snails, Pomacea canaliculata and Pomacea maculata (formerly Pomacea insularum), have invaded many countries of East and Southeast Asia from their native range in South America. This study investigated the genetic structure of the two species invading these areas. Phylogenetic analysis based on sequences of the nuclear gene elongation factor 1-alpha (EF1α) detected two well-supported...
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