英语词汇“geographical isolation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	geographical isolation
释义	geographical isolation geographical isolation the effective isolation of a GENE POOL by geographical barriers. For example, oceanic islands are isolated because of the difficulty of the sea-crossing for many organisms. The evolution of new species takes place through the prevention or limitation of GENE FLOW and various isolating mechanisms may play a part in this, one of the most important being geographical isolation. Compare ECOLOGICAL ISOLATION. see SPECIATION.
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