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| Open AccessTransposable element islands facilitate adaptation to novel environments in an invasive species
Genetic variation is key to species evolution. Here the authors sequence two phenotypically distinct populations of the ant Cardiocondyla obscurior, and find accumulations of transposable elements correlating with genetic variation that may have a role in differentiation, adaptation and speciation.
- Lukas Schrader
- , Jay W. Kim
- & Jan Oettler
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Article
| Open AccessIncreasing functional modularity with residence time in the co-distribution of native and introduced vascular plants
Understanding how species assemblages change over time is crucial for conservation. Here, the authors assess the changes of compartmentalized structure in native and alien species across millennia, and show that older assemblages can form more functionally distinctive modules than younger ones.
- Cang Hui
- , David M. Richardson
- & Vojtěch Jarošík
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Environmental variability promotes plant invasion
Environmental conditions are likely to become more temporally variable with global environmental change. Parepa et al. show that temporal variability on soil nutrient availability strongly promotes plant invasion and consequently can be a strong driver of ecological changes.
- Madalin Parepa
- , Markus Fischer
- & Oliver Bossdorf
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Threat of invasive pests from within national borders
Invasive species are usually thought to originate from outside a country's borders. Here, using a self-organizing map, Paini and co-workers show that the species most likely to 'invade' the USA are already firmly established within the country, suggesting the need for biosecurity measures within national borders.
- Dean R. Paini
- , Susan P. Worner
- & Matthew B. Thomas