Sentence examples for multiple introductions are from inspiring English sources

Recent studies have shown that invasive populations typically exhibit minimal, if any, reductions in genetic diversity, suggesting that large founding populations and/or multiple introductions are required for the success of biological invasions, consistent with predictions of the propagule pressure hypothesis.

Recent genetic studies have shown that invasive populations typically exhibit minimal, if any, reductions in genetic diversity [10] [13], suggesting that large founding populations and/or multiple introductions are required for the success of biological invasions [8] [11], consistent with predictions of the propagule pressure hypothesis.

Multiple introductions are likely, given the high level of genetic diversity among populations of introduced P. australis (Belzile et al. 2010; Kirk et al. 2011).

Multiple introductions are often necessary for an invading species to become established, and once established, a "lag period" of years to decades often ensues during which the invading species remains relatively localized.

A consequence of such ongoing risk of extinction is that long-term persistence is impossible in highly perturbed habitats unless multiple introductions are distributed in space to create a functional metapopulation.

For a standard epidemic, explicit consideration of multiple introductions is not important as each case produces many secondary infections.

However, one of the concerns associated with multiple introductions is the admixture of previously allopatric evolutionary lineages resulting in novel genetic complexes with unexpected and potentially highly invasive phenotypes [16], [17], [18].

The mixing of differentiated genotypes by multiple introductions is thought to be an important process in adaptation during invasion (Facon et al. 2008; Estoup and Guillemaud 2010).

Theoretical and empirical studies have shown that hybridization and intermixing through multiple introductions is less likely to occur on islands than in comparable mainland populations [ 29].

Additional support for the existence of multiple introductions was found when NZ3 was recognised as being a common asexual M. persicae clone found in Scotland (clone D in Fenton et al. [ 31]).

An independent estimation of R e for each of these lineages produced a minor but non-significant variation to those observed for the entire epidemic, indicating that, on average, the R e estimates for lineages resulting from multiple introductions were similar.