如果有两个飞行昆虫种群居住在相距不远的不同山谷中，那么任一种群中的个体都有可能来回飞行，从而使基因流动继续。
If two flying insect populations took up residence in separate nearby valleys, chances are that individuals from each population would fly back and forth, continuing gene flow.
通过再造林将这两个区域中的任意一处与冈贝连起来，公园里的黑猩猩就会因为基因流动和种群规模的扩大而受益，但它们也可能会因为其他族群的疾病扩散而受到打击。
If either area could be linked to Gombe by reforested corridors, the chimps would benefit from increased gene flow and population size. Then again, they might be hurt by sharing diseases.
这项试验多半只涉及可能的基因流动。
The experiment is mostly restricted to the potential gene flow.
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