Now, with genetic rescue, we can reverse this extinction vortex by bringing a new genetic variation and increasing the long-term survival of these populations.
现在有了基因拯救技术，我们就可以扭转这种灭绝漩涡，通过增加新的遗传变异以及提高这些种群的长期存活率。
Extinction vortex
原声例句
TED演讲（视频版）双语精选
TED演讲（视频版）双语精选
And many scientists refer to this challenge as the extinction vortex, when small, fragmented populations lose genetic variation and become at risk for the vortex of extinction as their populations dwindle.
许多科学家把这种情况称为灭绝漩涡，微小而分散的种群失去遗传变异，随着种群数量减少，就会面临灭绝漩涡的危机。
英语百科
Extinction vortex
Extinction vortices are a class of models through which conservation biologists, geneticists and ecologists can understand the dynamics of and categorize extinctions in the context of their causes. Developed by M. E. Gilpin and M. E. Soulé in their (now) famous 1986 paper Minimum viable populations: Processes of species extinction, there are currently four classes of extinction vortices. The first two (R and D) deal with environmental factors that have an effect on the ecosystem or community level, such as disturbance, pollution, habitat loss etc. Whereas the second two (F and A) deal with genetic factors such as inbreeding depression and outbreeding depression, genetic drift etc.
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