4.5 Article

The final frontier: ecological and evolutionary dynamics of a global parasite invasion

期刊

BIOLOGY LETTERS
卷 19, 期 5, 页码 -

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ROYAL SOC
DOI: 10.1098/rsbl.2022.0589

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pollination; invasive species; mites; Apis; viruses

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Studying the introduction of the Varroa destructor into native ecosystems can provide valuable insights into ecological and evolutionary theory. The detection of Varroa in Australia in 2022 poses potential risks and opportunities for studying its impact on honeybee populations and pollination. The invasion of Varroa can also serve as a model for studying evolution, virology, and ecological interactions between parasites, hosts, and other organisms.
Studying rapid biological changes accompanying the introduction of alien organisms into native ecosystems can provide insights into fundamental ecological and evolutionary theory. While powerful, this quasi-experimental approach is difficult to implement because the timing of invasions and their consequences are hard to predict, meaning that baseline pre-invasion data are often missing. Exceptionally, the eventual arrival of Varroa destructor (hereafter Varroa) in Australia has been predicted for decades. Varroa is a major driver of honeybee declines worldwide, particularly as vectors of diverse RNA viruses. The detection of Varroa in 2022 at over a hundred sites poses a risk of further spread across the continent. At the same time, careful study of Varroa's spread, if it does become established, can provide a wealth of information that can fill knowledge gaps about its effects worldwide. This includes how Varroa affects honeybee populations and pollination. Even more generally, Varroa invasion can serve as a model for evolution, virology and ecological interactions between the parasite, the host and other organisms.

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