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Bridgehead Effect in the Worldwide Invasion of the Biocontrol Harlequin Ladybird
TLDR
It is shown that the recent burst of worldwide invasions of HA followed a bridgehead scenario, in which an invasive population in eastern North America acted as the source of the colonists that invaded the European, South American and African continents, with some admixture with a biocontrol strain in Europe. Expand
A general eco-evolutionary framework for understanding bioinvasions.
TLDR
This work considers how migration (as a demographic factor), as well as ecological and evolutionary changes, affect invasion success, and proposes three main theoretical scenarios that depend on how these factors generate the match between an invader and its new environment. Expand
Ecological genetics of invasive alien species
TLDR
In conclusion, it is concluded that invasions are excellent model systems for understanding the role of natural selection in shaping phenotypes and that an ecological genetics approach offers great potential for addressing fundamental questions in invasion biology. Expand
Anthropogenically induced adaptation to invade (AIAI): contemporary adaptation to human-altered habitats within the native range can promote invasions
TLDR
It is proposed that recent adaptation within the native range, in particular adaptations to human‐altered habitat, could also contribute to the evolution of invasive populations. Expand
Is There a Genetic Paradox of Biological Invasion
TLDR
This work proposes research directions into remaining paradoxical aspects of introduced populations, as seen in introduced populations with low diversity in neutral markers that maintain high genetic variation in ecologically relevant traits. Expand
High Genetic Variance in Life-History Strategies within Invasive Populations by Way of Multiple Introductions
TLDR
It is provided the first direct evidence that multiple introductions are primarily responsible for such an accumulation of key ecological traits in invasive populations and that sexual reproduction amplifies this effect by generating novel trait combinations. Expand
Inbreeding Depression Is Purged in the Invasive Insect Harmonia axyridis
TLDR
Rather than posing a barrier to invasion as often assumed, bottlenecks, by purging deleterious alleles, can enable the evolution of invaders that maintain high fitness even when inbred. Expand
A molecular phylogeography approach to biological invasions of the New World by parthenogenetic Thiarid snails
TLDR
The phylogenetic reconstruction suggests that although repeated invasions in Melanoides may have an impact on indigenous molluscan faunas, their most likely effect is the world‐wide homogenization of the invasive taxon itself. Expand
Role of propagule pressure in colonization success: disentangling the relative importance of demographic, genetic and habitat effects
TLDR
The data show that the positive effect of propagule pressure on founding success can be driven as much by underlying genetic processes as by demographics, and genetic effects can be immediate and have sizable effects on fitness. Expand
The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology
TLDR
An overview of the invasion history and ecology of H. axyridis globally with consideration of future research perspectives is provided. Expand
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