Allo-parapatric speciation goes offshore

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2019,（2）
• 页码范围: 289
• 页数: 1页
• 语种: 英文
• DOI: 10.1093/nsr/nwy110

摘要

A basic conundrum in speciation is that isolation is required for differentiation, but dispersal is required to produce populations in different places, which can then diverge [1].These conflicting pressures seem to make the optimal conditions for speciation to be those in which barriers appear and disappear on the right timescale.If barriers break down too quickly, divergence will be incomplete and populations will merge;if they appeartoo slowly, few species will form.