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- W3174002642 abstract "Biological invasions are becoming more prevalent due to the rise of global trade and expansion of urban areas. Ants are among the most prolific invaders, with many exhibiting a multi-queen colony structure, dispersal through budding and a lack of inter-nest aggression. Although these characteristics are generally associated with the invasions of exotic ants, they may also facilitate the spread of native ants into novel habitats ( e . g ., urban areas). Native to North American forests, the odorous house ant Tapinoma sessile has become abundant in urban environments throughout the United States. Forest-dwelling colonies typically have a small workforce, inhabit a single nest, and are headed by a single queen, whereas urban colonies tend to be several orders of magnitude larger, inhabit multiple nests and are headed by multiple queens. Here, we explore and compare the population genetic and breeding structure of T. sessile within and between urban and natural environments in several localities across its distribution range. We found the social structure of a colony to be a plastic trait in both habitats, although extreme polygyny ( i . e ., nests with multiple queens) was confined to urban habitats. Additionally, polydomous colonies ( i . e ., nests lacking genetic differentiation and behavioral antagonism) were only present in urban habitats, suggesting T. sessile can only achieve unicoloniality within urbanized areas. Finally, we identified strong differentiation between urban and natural populations in each locality and continent-wide, indicating cities may restrict gene flow and exert intense selection pressure. Overall, our study highlights urbanization’s influence in charting the evolutionary course for species." @default.
- W3174002642 created "2021-07-05" @default.
- W3174002642 creator A5016953895 @default.
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- W3174002642 creator A5075210542 @default.
- W3174002642 creator A5075930946 @default.
- W3174002642 creator A5082375666 @default.
- W3174002642 date "2021-06-22" @default.
- W3174002642 modified "2023-10-16" @default.
- W3174002642 title "Consistent signatures of urban adaptation in a native, urban invader ant Tapinoma sessile" @default.
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