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Genetic Diversity Aids Inbred Brown Tree Snakes in Guam Invasion

26 Temmuz 2026Science Daily

Research reveals that the invasive brown tree snakes in Guam possess hidden genetic diversity that contributed to their successful adaptation and proliferation. Advanced long-read DNA sequencing identified over 19,000 significant genetic variations, particularly in genes associated with immunity and olfaction.
This genetic advantage may have allowed a small founding population to overcome the challenges of inbreeding and thrive in a new environment.
The brown tree snake invasion in Guam has led to the decline of several native bird species, prompting concerns about biodiversity loss. The study sheds light on how genetic factors can influence the success of invasive species, which is critical for conservation efforts.
The findings highlight the importance of genetic diversity in invasive species and their ability to adapt to new ecosystems. The case of the brown tree snake serves as a cautionary tale about the potential for even small populations to harbor significant genetic variation that can facilitate rapid adaptation and eco…

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